From cisin at xenosoft.com Thu Oct 1 00:04:13 2009
From: cisin at xenosoft.com (Fred Cisin)
Date: Wed, 30 Sep 2009 22:04:13 -0700 (PDT)
Subject: "What;s the matter with kids today" (Was: PCjr NMI and 8253
In-Reply-To: <4AC4112D.6090201@brutman.com>
References: <4AC2362D.2050200@brutman.com>
<20090929215904.GA32396@brevard.conman.org>
<4AC291F6.5040705@brutman.com>
<20090930055330.GA29752@brevard.conman.org>
<4AC3FD9D.4000709@brutman.com> <4AC40054.5040703@brutman.com>
<230D3812-79E7-4149-B41D-627DE008E14E@shiresoft.com>
<20090930183822.A68140@shell.lmi.net>
<4AC4112D.6090201@brutman.com>
Message-ID: <20090930205615.F80398@shell.lmi.net>
> >>
> >> Why do people always seem to want to have elapsed time as a floating
> >> point number?
> >>
> > Because some of the CRAP that they learned in school makes them think that
> > truncation (or even rounding) to an int value "isn't the RIGHT answer".
On Wed, 30 Sep 2009, Michael B. Brutman wrote:
> I think that both of you are making assumptions about my education,
> upbringing, etc. that are not true and I'd like you to calm down.
Sorry.
I was, indeed, assuming that you had been through the school system in the
USA, and I blame that system for many problems, including the one of
people using floating point when it is inappropriate (almost always).
I assumed that your education was similar to ours. I have no ideas about
your "upbringing".
Even FORTRAN makes the very sad mistake of calling floating point numbers
"REAL" numbers.
And although I will always have fond feelings for Microsoft "street"
BASIC, its use of single precision float as the default variable type
reinforces Djikstra's "It is virtually impossible to teach good
programming practices to students who have had a prior exposure to BASIC.
They are mentally mutilated beyond hope of regeneration."
"God made integers, all else is the work of man." - Leopold Konecke?
Using floating point inappropriately might be the most common mistake made
by those who start with a high level language (as I did), and come from a
school mathematical background. If you would like to blame that mistake
on something else, you're entitled. I blame that on certain aspects of
mathematics education, including the emphasis on "pure" math and rote
memorization to the detriment of understanding of calculatory methods.
For example, how many people can compute a square root?
What percentage of the polulace think that PI == 22/7, not "about 22/7"?
> I've used that trick
"trick"????
It's not a trick. It's one of the basic normal ways in computer math
to get a fractional portion of an integer.
Similarly, use and understanding of interpolation makes it trivial to
compute a square root. Is it a "trick"? No. But lack of that "trick"
accounts for why less than a tenth of a percent of college graduates can
compute a square root. Yet anybody who takes a community college course
in computer math instead of one from the Mathematics department, has no
difficulty at all.
Even using shifts and adds for multiplying isn't so much a "trick" as it
is understanding the capabilities and limitations of the tools in use.
Y = X * 10
Y = X * (8 + 2)
Y = (X * 2) + (X * 8)
Y = (X >>1) + (X >>3)
T = X >>1
Y = T + T >>2
(leaving out discussion of accumulators)
> I was using this to explore other methods ..
a very reasonable and commendable thing to do.
> I don't know what CRAP you learned, but I would try to be more gracious ...
Trust me, it was horrible.
Yes, I did get disciplined for insisting that "PI is about 3.1416 or 22/7"
in the textbook did NOT mean that PI was exactly 22/7.
I have much to unlearn to be able to work well with computer math. I am
grateful for the help, tips, "tricks", and reality-checks that "seasoned"
computer people have provided. I was even using floating point to
determine which pixels to set to draw a line from (X1,Y1) to (X2,Y2)
--
Grumpy Ol' Fred cisin at xenosoft.com
From cclist at sydex.com Thu Oct 1 00:39:42 2009
From: cclist at sydex.com (Chuck Guzis)
Date: Wed, 30 Sep 2009 22:39:42 -0700
Subject: "What;s the matter with kids today" (Was: PCjr NMI and 8253
In-Reply-To: <20090930205615.F80398@shell.lmi.net>
References: <4AC2362D.2050200@brutman.com>, <4AC4112D.6090201@brutman.com>,
<20090930205615.F80398@shell.lmi.net>
Message-ID: <4AC3DE2E.13985.A152D@cclist.sydex.com>
On 30 Sep 2009 at 22:04, Fred Cisin wrote:
> What percentage of the polulace think that PI == 22/7, not "about
> 22/7"?
Hey, that only goes to show that the populace gets smarter with time.
In 1897, the Indiana Legislature attempted to declare it as 3
(exactly). Gotta love them lawyers.
http://en.wikipedia.org/wiki/Indiana_Pi_Bill
But maybe not; politicians today seem to be as benighted as they ever
were...
Cheers,
Chuck
From pontus at Update.UU.SE Thu Oct 1 01:09:36 2009
From: pontus at Update.UU.SE (Pontus Pihlgren)
Date: Thu, 1 Oct 2009 08:09:36 +0200
Subject: Some new pictures...
In-Reply-To: <4AC3D055.6080504@hachti.de>
References: <4AC3D055.6080504@hachti.de>
Message-ID: <20091001060935.GA5197@Update.UU.SE>
Wow!
What a goldmine, thanks for sharing Hachti. Is this part of a museum? Is
it possible to visit?
Please keep us informed about what will happen to the hardware, I would
not mind doing a roadtrip for an auction of this stuff.
I'm curious, what kind of terminal is this:
http://picasaweb.google.com/iraeus/AFewImpressionsFromKiel#5387315072830026706
The blue racks in the center of this picture, is that a PDP-10 or PDP-15?
http://picasaweb.google.com/iraeus/AFewImpressionsFromKiel#5387319646413170322
Kind regards,
Pontus-
From spc at conman.org Thu Oct 1 02:18:36 2009
From: spc at conman.org (Sean Conner)
Date: Thu, 1 Oct 2009 03:18:36 -0400
Subject: PCjr NMI and 8253 Timer interactions
In-Reply-To: <4AC40054.5040703@brutman.com>
References: <4AC2362D.2050200@brutman.com>
<20090929215904.GA32396@brevard.conman.org>
<4AC291F6.5040705@brutman.com>
<20090930055330.GA29752@brevard.conman.org>
<4AC3FD9D.4000709@brutman.com> <4AC40054.5040703@brutman.com>
Message-ID: <20091001071836.GA28544@brevard.conman.org>
It was thus said that the Great Michael B. Brutman once stated:
>
> On a related note, does anybody have a good method for doing a floating
> point multiply in software? Before I steal an existing floating point
> emulation lib, I'd like to see if I can cheat and just write enough code
> to do the one multiply that I need.
>
> I need to figure out how to do this:
>
> float elapsed = ticks * 0.85;
>
> using purely integer operations.
mov ax,ticks
mov dx,55706
mul dx
The result is now in DX (55,706 is 85% of 65,536).
-spc
From ggs at shiresoft.com Thu Oct 1 03:08:12 2009
From: ggs at shiresoft.com (Guy Sotomayor)
Date: Thu, 1 Oct 2009 01:08:12 -0700
Subject: PCjr NMI and 8253 Timer interactions
In-Reply-To: <4AC4112D.6090201@brutman.com>
References: <4AC2362D.2050200@brutman.com> <20090929215904.GA32396@brevard.conman.org> <4AC291F6.5040705@brutman.com> <20090930055330.GA29752@brevard.conman.org> <4AC3FD9D.4000709@brutman.com>
<4AC40054.5040703@brutman.com> <230D3812-79E7-4149-B41D-627DE008E14E@shiresoft.com>
<20090930183822.A68140@shell.lmi.net>
<4AC4112D.6090201@brutman.com>
Message-ID: <2A331095-2436-47D6-A0EC-379CA61199F4@shiresoft.com>
On Sep 30, 2009, at 7:17 PM, Michael B. Brutman wrote:
> Fred Cisin wrote:
>> On Wed, 30 Sep 2009, Guy Sotomayor wrote:
>>>
>>> Why do people always seem to want to have elapsed time as a floating
>>> point number?
>>>
>> Because some of the CRAP that they learned in school makes them
>> think that
>> truncation (or even rounding) to an int value "isn't the RIGHT
>> answer".
>> In the XenoSoft Sales Tax Genie, I wrote a very small TSR that
>> calculated
>> the sales tax of every California jurisdiction (based on ZIPCODE),
>> rounded
>> appropriately to an "exact" cents amount. I NEVER used floating
>> point.
>> I do not HAVE any "fraction of a cent" coins!
>> --
>> Grumpy Ol' Fred cisin at xenosoft.com
>
> I think that both of you are making assumptions about my education,
> upbringing, etc. that are not true and I'd like you to calm down.
Please re-read what *I* said. Your original post contained:
float elapsed = ticks * 0.85;
Which is what *I* had the about.
>
> I've used that trick in all of my other TCP/IP apps so far - they
> all report elapsed time (sometimes with decimal points), and I
> managed to do it without ever linking in the floating point library.
>
> I was using this to explore other methods ..
>
> I don't know what CRAP you learned, but I would try to be more
> gracious ...
>
Part of my job is to maintain/manage time for a particular OS. In
that OS all time (internally) is kept as a 64-bit number of
nanoseconds (10**-9 seconds). However, the number of people that
insist that it be converted to a floating point number so that they
can have seconds and fractional seconds (and then want to do math on
it) is astounding. I tend to overreact on this topic because floating
point to represent time is idiotic IMHO especially since some of the
low level conversion constants I deal with are specified in
femtoseconds (10**-15 seconds). If I can do everything necessary to
maintain time in integer values at those precisions then I fail to
understand why anyone needs to deal with time as a floating point
value. In case anyone is wondering, 64-bits of nanoseconds can
represent a time span of over 500 years.
TTFN - Guy
From classiccmp at philpem.me.uk Thu Oct 1 03:17:23 2009
From: classiccmp at philpem.me.uk (Philip Pemberton)
Date: Thu, 01 Oct 2009 09:17:23 +0100
Subject: Classic computers endangered!
In-Reply-To:
References:
Message-ID: <4AC46593.7000103@philpem.me.uk>
Murray McCullough wrote:
> I read an article today in 'New Scientist' entitled 'Innovation: Classic
> computers on the danger list' with Tom Simonite writing: "Pretty much every
> adult alive today has seen computers change the world, but we are doing
> precious little to celebrate the influence of the computers and software
> that created our society." Indeed! Are we failing to preserve the earliest
> part of microcomputing history? Will classiccmp.org discuss early ucomputers
> in 5 yrs., 10 yrs.?
Here's a link to (what appears to be) the article in question:
Cheers,
--
Phil.
classiccmp at philpem.me.uk
http://www.philpem.me.uk/
From hachti at hachti.de Thu Oct 1 06:13:52 2009
From: hachti at hachti.de (Philipp Hachtmann)
Date: Thu, 01 Oct 2009 13:13:52 +0200
Subject: Some new pictures...
In-Reply-To: <20091001060935.GA5197@Update.UU.SE>
References: <4AC3D055.6080504@hachti.de> <20091001060935.GA5197@Update.UU.SE>
Message-ID: <4AC48EF0.30301@hachti.de>
Hi Pontus,
> What a goldmine, thanks for sharing Hachti.
:-)
> Is this part of a museum?
I is part of what is becoming a museum.
> Is
> it possible to visit?
Currently there's no public access.
> Please keep us informed about what will happen to the hardware, I would
> not mind doing a roadtrip for an auction of this stuff.
I will post updates and availabilities to this list and
de.alt.folklore.computers.
> I'm curious, what kind of terminal is this:
> http://picasaweb.google.com/iraeus/AFewImpressionsFromKiel#5387315072830026706
It's a DEC VT06 terminal - but it's already gone (I have to turn my head
right to see it....). Saved it. Works. But is in *very* used condition.
> The blue racks in the center of this picture, is that a PDP-10 or PDP-15?
> http://picasaweb.google.com/iraeus/AFewImpressionsFromKiel#5387319646413170322
A pdp10. There were two in fact. One CPU and a very limited set of
cabinets stays in Kiel. The rest is already gone away. It must have been
a second generation pdp10. And the system (not everything was kept in
the beginning of the 1990ies!!!) once was the biggest pdp10 installation
in Europe....
I saved some disk drives (discussed earlier here) and some more bits.
Best wishes,
Philipp
From spectre at floodgap.com Thu Oct 1 07:45:43 2009
From: spectre at floodgap.com (Cameron Kaiser)
Date: Thu, 1 Oct 2009 05:45:43 -0700 (PDT)
Subject: Classic computers endangered!
In-Reply-To:
from Murray McCullough at "Sep 30, 9 06:15:08 pm"
Message-ID: <200910011245.n91CjiXk009500@floodgap.com>
> I read an article today in 'New Scientist' entitled 'Innovation: Classic
> computers on the danger list' with Tom Simonite writing: "Pretty much every
> adult alive today has seen computers change the world, but we are doing
> precious little to celebrate the influence of the computers and software
> that created our society." Indeed! Are we failing to preserve the earliest
> part of microcomputing history? Will classiccmp.org discuss early ucomputers
> in 5 yrs., 10 yrs.?
I like to think us fresh-faced young whippersnappers will carry the torch,
once we're off everybody's lawn. ;-)
--
------------------------------------ personal: http://www.cameronkaiser.com/ --
Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com
-- BOND THEME NOW PLAYING: "The Man With the Golden Gun" ----------------------
From rodsmallwood at btconnect.com Thu Oct 1 08:49:19 2009
From: rodsmallwood at btconnect.com (Rod Smallwood)
Date: Thu, 1 Oct 2009 14:49:19 +0100
Subject: DEC paint: textures
In-Reply-To:
References:
Message-ID: <4CD95D3BE816426199353AF8C7251FDF@EDIConsultingLtd.local>
I've just examined a selection of DEC plastic panels (11/34, 11/94 etc)
The splatter effect seems a very good color match to the panel it's on.
It seems to be part of the surface. Why paint beige panel beige?
You need to be very close to see the texture. It could have been a release
agent sprayed into the mould or a pattern on the surface of the mould tool.
Its mimicking the rough surface of the die cast aluminum bezels on PDP8's to
a certain extent.
Rod Smallwood
-----Original Message-----
From: cctech-bounces at classiccmp.org [mailto:cctech-bounces at classiccmp.org]
On Behalf Of Roger Holmes
Sent: 30 September 2009 08:17
To: cctalk at classiccmp.org
Subject: Re: DEC paint: textures
My ICT 1301 (built 1962) has a sort of sand finish, a bit like very
fine wood chip wallpaper. On the underside of one of the top covers
they missed some of the top coat and I can see the texture was in a
primer, which barely covers the metal. In the next couple of years I
am going to have to respray some areas where the covers have been
scratched, another where I've spot welded some changes and one where
the roof leaked and the covers have rusted through. Good job I'm also
a classic car restorer, but I've never come across sand texture paint
on a car, not even on my Land Rover recovery truck. If anyone happens
to know anything about sand finish, I'd love to know.
From pat at computer-refuge.org Thu Oct 1 09:45:24 2009
From: pat at computer-refuge.org (Patrick Finnegan)
Date: Thu, 1 Oct 2009 10:45:24 -0400
Subject: Classic computers endangered!
In-Reply-To: <200910011245.n91CjiXk009500@floodgap.com>
References: <200910011245.n91CjiXk009500@floodgap.com>
Message-ID: <200910011045.24177.pat@computer-refuge.org>
On Thursday 01 October 2009, Cameron Kaiser wrote:
> > I read an article today in 'New Scientist' entitled 'Innovation:
> > Classic computers on the danger list' with Tom Simonite writing:
> > "Pretty much every adult alive today has seen computers change the
> > world, but we are doing precious little to celebrate the influence
> > of the computers and software that created our society." Indeed!
> > Are we failing to preserve the earliest part of microcomputing
> > history? Will classiccmp.org discuss early ucomputers in 5 yrs., 10
> > yrs.?
>
> I like to think us fresh-faced young whippersnappers will carry the
> torch, once we're off everybody's lawn. ;-)
>
Indeed. :)
--
Purdue University Research Computing --- http://www.rcac.purdue.edu/
The Computer Refuge --- http://computer-refuge.org
From legalize at xmission.com Thu Oct 1 09:57:27 2009
From: legalize at xmission.com (Richard)
Date: Thu, 01 Oct 2009 08:57:27 -0600
Subject: Classic computers endangered!
In-Reply-To: Your message of Thu, 01 Oct 2009 09:17:23 +0100.
<4AC46593.7000103@philpem.me.uk>
Message-ID:
In article <4AC46593.7000103 at philpem.me.uk>,
Philip Pemberton writes:
> Murray McCullough wrote:
> > I read an article today in 'New Scientist' entitled 'Innovation: Classic
> > computers on the danger list' with Tom Simonite writing: "Pretty much every
> > adult alive today has seen computers change the world, but we are doing
> > precious little to celebrate the influence of the computers and software
> > that created our society." Indeed! Are we failing to preserve the earliest
> > part of microcomputing history? Will classiccmp.org discuss early ucomputer
s
> > in 5 yrs., 10 yrs.?
>
> Here's a link to (what appears to be) the article in question:
>
Well, this part is just plain uninfomed:
"Science museums around the world have long collected computing
kit. But there are only three institutions actively growing
collections of outdated computers and restoring them to working
order: the UK's National Museum of Computing (NMOC) at Bletchley
Park; the Computer History Museum in Silicon Valley; and the Heinz
Nixdorf MuseumsForum (HNF) in Padaborn, Germany."
Only three? I can name a half-dozen more off the top of my head
without even googling.
Speaking of which, I need to visit that museum in Montana before it
gets too cold.
--
"The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download
Legalize Adulthood!
From mcguire at neurotica.com Thu Oct 1 11:21:59 2009
From: mcguire at neurotica.com (Dave McGuire)
Date: Thu, 1 Oct 2009 12:21:59 -0400
Subject: Fairlight CMI
In-Reply-To:
References: <399726.45839.qm@web56202.mail.re3.yahoo.com>
<0E2CDB22-4B42-4A26-9E04-C59FCCDAF8B6@neurotica.com>
Message-ID: <19D95E38-C48B-459D-80A8-5A4FD92E5863@neurotica.com>
On Sep 30, 2009, at 6:10 PM, Steven Hirsch wrote:
>>> Being a vintage computer and synthesiser fan, I'd love
>>> to get a Fairlight CMI for restoration/care/actual use
>>> so if anyone has any Fairlight CMI model they would like
>>> to either sell or trade let me know. Can be EU or US.
>>
>> Mmmmm, Fairlight.
>>
>> Years ago (1988 or so?) my friend Mike in Delaware had a
>> Synclavier II. That thing was damn impressive. Sadly he no longer
>> has it. Unless I'm mistaken, there's a MicroVAX-II in there!
>
> There's been earlier discussion on this list, but short answer is
> that you are mistaken :-). The Synclavier was built around New
> England Digital's own bit-slice CPU originally developed for their
> ABEL minicomputer system. Probably based on AMD 29xx parts,
> although I do not know that for sure.
Really? I was actually pretty sure about that. I never saw the
innards of the machine myself, but I will happily stand corrected!
> A company I ran in the 80s did a lot of audio systems contracting
> work with NED and I recall seeing terminals all over the place that
> were logged on to the in-house ABEL system. I think they used it
> for inventory, billing, etc. All the support software was
> developed in the ABEL environment AFAIK.
I've gotta assume this is different from the ABEL PLD design
language. I've never heard of it, what is it?
-Dave
>
--
Dave McGuire
Port Charlotte, FL
From cclist at sydex.com Thu Oct 1 11:32:04 2009
From: cclist at sydex.com (Chuck Guzis)
Date: Thu, 01 Oct 2009 09:32:04 -0700
Subject: PCjr NMI and 8253 Timer interactions
In-Reply-To: <066301ca41eb$7c803f20$6400a8c0@acerd3c08b49af>
References: <4AC2362D.2050200@brutman.com>,
<066301ca41eb$7c803f20$6400a8c0@acerd3c08b49af>
Message-ID: <4AC47714.27126.25F57FB@cclist.sydex.com>
On 30 Sep 2009 at 11:31, CSquared wrote:
> Many years ago I tried a similar trick. I think I wanted a 10
> millisecond interrupt rate instead of 55ms for an embedded DOS
> application, and I got it to work - sort of. However, I soon
> discovered that many other things including the Borland delay()
> function depend on the 55ms interval, so I rather quickly abandoned
> that line of thinking. I rather suspect your PCjr keyboard driver is
> making similar assumptions regarding the tick rate.
Several programs made this work on the PC, as long as the interval
could be a sub-multiple of 55 msec. So, for instance, if you could
live with 11 msec. or 5.5 msec., this is how you would do it.
Hook the interrupt 9 vector and create your own ISR for 4 of 5 timer
interrupts, then direct the the 5th to the normal vector. All that's
required in your ISR is any register saving required for your own
needs, and a routine to issue an EOI to the 8259. Works like a
charm--everything runs just as it should.
However, on Mike's Peanut, there is no 8259. Everything goes through
the NMI handler--a very bad decision on IBM's part, seeing as how the
8259 was one of the least expensive Intel 8x support chips. A
rudimentary prioritized interrupt system could have been implemented
with a priority encoder and some other glue.
Cheers,
Chuck
From sellam at vintagetech.com Thu Oct 1 11:53:12 2009
From: sellam at vintagetech.com (Sellam Ismail)
Date: Thu, 1 Oct 2009 09:53:12 -0700 (PDT)
Subject: PDP 14?
Message-ID:
Does anyone have a PDP 14? Or has anyone ever seen one out in the "wild"?
If so, please contact me directly ;)
Thanks!
--
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
[ Old computing resources for business || Buy/Sell/Trade Vintage Computers ]
[ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]
From aek at bitsavers.org Thu Oct 1 12:48:46 2009
From: aek at bitsavers.org (Al Kossow)
Date: Thu, 01 Oct 2009 10:48:46 -0700
Subject: Compaq Portable III HDDs
In-Reply-To: <710BD978DEB444B3AE488AEFE286F1E8@tegp4>
References: <710BD978DEB444B3AE488AEFE286F1E8@tegp4>
Message-ID: <4AC4EB7E.1010403@bitsavers.org>
Tom Gardner wrote:
> Hi:
>
>
>
> I'm a newbie to the group and a long time volunteer at the Computer History
> Museum, Mt View CA. We'd like to know the models of Conner HDDs shipped in
> the Compaq Portable IIIs. The Conner model numbers should have the form of
> CP340, CP341, CP342, CP3102, etc. The following is a list of the known
> capacity and Compaq PNs for the Conner HDDs shipped by Compaq:
>
Tom, here are the characteristics of the early Conner drives.
CP-340 was SCSI
MANUFACTURER UNFORMAT WTH. PL CYLS ST CYLS INTERFACE ACC POWER
MODEL NUMBER FORMATED HGT. HD PREC AC HDS REC.METH T-T MTBF
ADDITIONAL COMMENTS ST XFER
CONNER 3.50 2 788 26 SCSI 29mS 4.3W
CP-340 42.9MB HALF 4 VC (2,7)RLL 20K
7.5Mb P?= Y
CONNER 3.50 2 805 26 IDE(AT)
CP-341(i) 42.9MB HALF 4 VC (2,7)RLL
3:1 (i=1:1) 7.5Mb P?= Y
CONNER 3.50 2 805 IDE(AT) 29mS
CP-342 42.9MB HALF 4 VC (2,7)RLL
7.5Mb P?= Y
CONNER 3.50 2 805 IDE 29mS
CP-343 42.9MB HALF 4 VC (2,7)RLL
FOR ZENITH PORTABLE 7.5Mb P?= Y
CONNER 3.50 2 805 26 IDE(AT) 29mS 4.3W
CP-344 42.9MB HALF 4 VC (2,7)RLL 20K
7.5Mb P?= Y
From thomas.gardner at sbcglobal.net Thu Oct 1 12:50:49 2009
From: thomas.gardner at sbcglobal.net (Tom Gardner)
Date: Thu, 1 Oct 2009 10:50:49 -0700
Subject: Compaq Portable III HDDs
Message-ID: <12B5D8533DE04CE8A29DA255CA158FE4@tegp4>
Hi:
I'm a newbie to the group and a long time volunteer at the Computer History
Museum, Mt View CA. We'd like to know the models of Conner HDDs shipped in
the Compaq Portable IIIs. This is of interest because Conner, due to its
Compaq relationship was at one time the fastest growing company in the
history of commerce and because IDE interface introduced by Conner went on
to dominate the market.
The following is a list of the known capacity and Compaq PNs for the Conner
HDDs shipped by Compaq - what we are trying to do is fill in the Conner
column. The Conner model numbers should have the form of CP340, CP341,
CP342, CP3102, etc.
Portable III Hard Drives
Size
Type
Inter-leave
Integrated
Min ROM
Spare Part No
Conner Model No
20MB
2
1:01
Y
K
Not known
20MB
2
3:01
Y
K
107357-001
40MB
17
3:01
Y
K
110358-001
40MB3
224
1:01
Y
R.2
Not known
40MB3
43
1:01
Y
F
114106-001
84MB3
27
1:01
Y
K
Not known
100MB3
45
1:01
Y
K
142365-0011
120MB3,5
45
1:01
Y
K
161832-0012
1 Except Europe.
2 Europe only.
3 Requires MS-DOS 3.2 or later.
4 Drive type 17 if ROM earlier than R.2 is used.
5 Formats to 100 MB.
Extracted from http://oldcomputers.net/compaqiii.pdf and other sources
Just the Conner model number would be good, but I would appreciate as much
information as u can provide, such as the corresponding Compaq part number
(if marked), a photo of the Conner technical data plate, and some
information on the date of manufacture of the drive and system (such as
photos of pcbs showing date lot codes).
Tom Gardner
From hachti at hachti.de Thu Oct 1 13:15:28 2009
From: hachti at hachti.de (Philipp Hachtmann)
Date: Thu, 01 Oct 2009 20:15:28 +0200
Subject: pdp11/20 (KA11) manuals anyone?
Message-ID: <4AC4F1C0.2070404@hachti.de>
Hui folks,
I just realized that I've no docs for my pdp11/20 :-(
(11/45 and 11/34 CPU docs are also missing...!)
I have so many DEC docs.. But not for KA11..! If anyone has a manual set
he doesn't need - PLEASE take about giving it away. I probably have
interesting stuff to trade in. This applies to 11/45 and 11/34 as well.
With decreasing urgency..
Best wishes,
Philipp
From hachti at hachti.de Thu Oct 1 13:16:40 2009
From: hachti at hachti.de (Philipp Hachtmann)
Date: Thu, 01 Oct 2009 20:16:40 +0200
Subject: Classic computers endangered!
In-Reply-To:
References:
Message-ID: <4AC4F208.7000800@hachti.de>
> Well, this part is just plain uninfomed:
>
> "Science museums around the world have long collected computing
> kit. But there are only three institutions actively growing
> collections of outdated computers and restoring them to working
> order: the UK's National Museum of Computing (NMOC) at Bletchley
> Park; the Computer History Museum in Silicon Valley; and the Heinz
> Nixdorf MuseumsForum (HNF) in Padaborn, Germany."
>
> Only three? I can name a half-dozen more off the top of my head
> without even googling.
And the HNF doesn't do anything to get something running afaik....
From IanK at vulcan.com Thu Oct 1 13:23:40 2009
From: IanK at vulcan.com (Ian King)
Date: Thu, 1 Oct 2009 11:23:40 -0700
Subject: pdp11/20 (KA11) manuals anyone?
In-Reply-To: <4AC4F1C0.2070404@hachti.de>
References: <4AC4F1C0.2070404@hachti.de>
Message-ID:
> -----Original Message-----
> From: cctalk-bounces at classiccmp.org [mailto:cctalk-
> bounces at classiccmp.org] On Behalf Of Philipp Hachtmann
> Sent: Thursday, October 01, 2009 11:15 AM
> To: On-Topic and Off-Topic Posts
> Subject: pdp11/20 (KA11) manuals anyone?
>
> Hui folks,
>
> I just realized that I've no docs for my pdp11/20 :-(
> (11/45 and 11/34 CPU docs are also missing...!)
>
> I have so many DEC docs.. But not for KA11..! If anyone has a manual
> set
> he doesn't need - PLEASE take about giving it away. I probably have
> interesting stuff to trade in. This applies to 11/45 and 11/34 as well.
> With decreasing urgency..
>
> Best wishes,
>
> Philipp
Are you asking about physical manuals, or online ones? I know I have a couple of PDFs.... -- Ian
From brad at heeltoe.com Thu Oct 1 13:48:12 2009
From: brad at heeltoe.com (Brad Parker)
Date: Thu, 01 Oct 2009 14:48:12 -0400
Subject: IMP system software
In-Reply-To: <76E77758-DF45-48E5-A376-DF4EABAA75D8@loomcom.com>
(sfid-20090930_142507_081247_3810518B)
References: <76E77758-DF45-48E5-A376-DF4EABAA75D8@loomcom.com>
(sfid-20090930_142507_081247_3810518B)
Message-ID: <4AC4F96C.30004@heeltoe.com>
Seth Morabito wrote:
> I think I asked about this several years ago, but I thought I might
> try my luck again.
>
> Is anyone aware of any surviving ARPAnet IMP System Software, in any
> form?
After talking with a person from BBN it might be possible to read
some old 7-track tapes with some code on them. Apparently the
earliest versions were written in PDP-1 assembler with macros.
Later a cross compiler was written for TENEX.
I'll dog it for a while and see what happens. I suppose the next
question is, "does anyone have docs on the Honeywell 516"? and
is there a simulator?
I'm game to write one for simh if there isn't one (but I'll hold
off if someone else has their heart set on it)
it might be more fun to write the pdp-1 assembler :-)
-brad
-----------
Brad Parker
Heeltoe Consulting
http://www.heeltoe.com
781-483-3101
From sethm at loomcom.com Thu Oct 1 15:06:47 2009
From: sethm at loomcom.com (Seth Morabito)
Date: Thu, 1 Oct 2009 13:06:47 -0700
Subject: IMP system software
In-Reply-To: <4AC4F96C.30004@heeltoe.com>
References: <76E77758-DF45-48E5-A376-DF4EABAA75D8@loomcom.com>
(sfid-20090930_142507_081247_3810518B) <4AC4F96C.30004@heeltoe.com>
Message-ID: <4887868A-86FE-4250-8C77-B13A63EF9197@loomcom.com>
On Oct 1, 2009, at 11:48 AM, Brad Parker wrote:
> Seth Morabito wrote:
>> I think I asked about this several years ago, but I thought I might
>> try my luck again.
>>
>> Is anyone aware of any surviving ARPAnet IMP System Software, in
>> any form?
>
> After talking with a person from BBN it might be possible to read
> some old 7-track tapes with some code on them. Apparently the
> earliest versions were written in PDP-1 assembler with macros.
> Later a cross compiler was written for TENEX.
That is some potentially very good news! Thanks for asking about this!
> I'll dog it for a while and see what happens. I suppose the next
> question is, "does anyone have docs on the Honeywell 516"? and
> is there a simulator?
There is not (yet) a 516 simulator, but Bob Supnik's SIMH does have an
H316 simulator. See: http://simh.trailing-edge.com/h316.html
Later IMPs were H316s, so possibly some of the code on those 7-tracks
is written for them?
I have no idea how much work would be involved in adding a 516 mode to
SIMH, nor how hard it would be to simulate the bit-serial IMP-host
interface hardware, but I'd certainly be game to help with that.
-Seth
From adrian at adrianwise.co.uk Thu Oct 1 15:28:19 2009
From: adrian at adrianwise.co.uk (Adrian Wise)
Date: Thu, 01 Oct 2009 21:28:19 +0100
Subject: IMP system software
In-Reply-To: <4887868A-86FE-4250-8C77-B13A63EF9197@loomcom.com>
References: <76E77758-DF45-48E5-A376-DF4EABAA75D8@loomcom.com> (sfid-20090930_142507_081247_3810518B)
<4AC4F96C.30004@heeltoe.com>
<4887868A-86FE-4250-8C77-B13A63EF9197@loomcom.com>
Message-ID: <4AC510E3.6080802@adrianwise.co.uk>
> I have no idea how much work would be involved in adding a 516 mode to
> SIMH, nor how hard it would be to simulate the bit-serial IMP-host
> interface hardware, but I'd certainly be game to help with that.
The 516 and the 316 are 100% code compatible. Just the cycle time
differs (0.96us for the 516, 1.3us for the 316 IIRC)
Adrian
http://www.series16.adrianwise.co.uk
From healyzh at aracnet.com Thu Oct 1 15:47:50 2009
From: healyzh at aracnet.com (Zane H. Healy)
Date: Thu, 1 Oct 2009 13:47:50 -0700 (PDT)
Subject: IMP system software
In-Reply-To: <4AC4F96C.30004@heeltoe.com>
References: <76E77758-DF45-48E5-A376-DF4EABAA75D8@loomcom.com>
(sfid-20090930_142507_081247_3810518B) <4AC4F96C.30004@heeltoe.com>
Message-ID:
On Thu, 1 Oct 2009, Brad Parker wrote:
> After talking with a person from BBN it might be possible to read
> some old 7-track tapes with some code on them. Apparently the
> earliest versions were written in PDP-1 assembler with macros.
> Later a cross compiler was written for TENEX.
My question would be, what do they have for TENEX, and would they be willing
to release that. It would be nice to see TENEX preserved. Though on the
PDP-10 we already have TOPS-10, TOPS-20, and ITS. ISTR, that bitsavers has
a few TENEX files.
Zane
From thomas.gardner at sbcglobal.net Thu Oct 1 15:51:19 2009
From: thomas.gardner at sbcglobal.net (Tom Gardner)
Date: Thu, 1 Oct 2009 13:51:19 -0700
Subject: Compaq Portable III HDDs - clean drive table
Message-ID:
Hi:
Sorry for the confusing prior posts, here is the chart of Compaq Portable
III drives in a legible form
Portable III Hard Drives
Min Compaq Conner
Size Type Interleave Integrated ROM Spare Part No Model No
20MB 2 1:01 Y K Not known
20MB 2 3:01 Y K 107357-001
40MB 17 3:01 Y K 110358-001
40MB 224 1:01 Y R.2 Not known
40MB 43 1:01 Y F 114106-001
84MB 27 1:01 Y K Not known
100MB 45 1:01 Y K 142365-0011
120MB 45 1:01 Y K 161832-0012
Extracted from http://oldcomputers.net/compaqiii.pdf ?and other sources
Any help in filling in the Conner Model Number column would be appreciated.
Tom Gardner
From aek at bitsavers.org Thu Oct 1 15:58:44 2009
From: aek at bitsavers.org (Al Kossow)
Date: Thu, 01 Oct 2009 13:58:44 -0700
Subject: TENEX (was Re: IMP system software)
In-Reply-To:
References: <76E77758-DF45-48E5-A376-DF4EABAA75D8@loomcom.com> (sfid-20090930_142507_081247_3810518B)
<4AC4F96C.30004@heeltoe.com>
Message-ID: <4AC51804.4070605@bitsavers.org>
Zane H. Healy wrote:
>
>
> On Thu, 1 Oct 2009, Brad Parker wrote:
>
>> After talking with a person from BBN it might be possible to read
>> some old 7-track tapes with some code on them. Apparently the
>> earliest versions were written in PDP-1 assembler with macros.
>> Later a cross compiler was written for TENEX.
>
> My question would be, what do they have for TENEX, and would they be
> willing
> to release that.
Mark Crispin has some stuff. I have some from the SRI archives. Dan
Murphy should have some things, but it may have been lost when they
wiped out his tapes with PDP-1 TECO on it.
There is also the TENEX variant used on the Foonlys (FOONEX).
From ard at p850ug1.demon.co.uk Thu Oct 1 15:59:59 2009
From: ard at p850ug1.demon.co.uk (Tony Duell)
Date: Thu, 1 Oct 2009 21:59:59 +0100 (BST)
Subject: Classic computers endangered!
In-Reply-To: <4AC46593.7000103@philpem.me.uk> from "Philip Pemberton" at Oct 1,
9 09:17:23 am
Message-ID:
> Here's a link to (what appears to be) the article in question:
>
The photographs have a couple of curiousities in them. Firstly, they say
that the PDP8 line started in 1965 (which sounds aout right), but the
picture is of a much later (early 70's) PDP8/e (which uses TTL ICs, not
discrete transistors).
Secondly, in the picture of the HP250, am I correct that there's a
Casio AL2000 calculator sitting on it (maybe badged Commodore, like the
AL1000 sometimes was). Surely any HP owner would have had an HP9815 or
HP9825 there...
I am also getting somewhat fed up with this idea that classic computers
are difficult to repair (or worse 'can't be repaired'). In general it is
easier to find parts for older machines that new ones. Most of the bits
(at least those that are likely to fail) for 1960's and 1970's machines
are not hard to find. But just try finding components for 1990's
machines. There is also (IMHO) no shortage of people who can repair said
old machines.
What there is is a shortage of owners who are prepared to pay for such
repairs. Serveral times I've been contacted by organisations who what a
(normally an HP of some flavour) fixed, but 'there's no budget for
it'. Sorry, it doesn't work that way. If you want me to fix the machine,
I charge. Needless to say, I don't charge for advice on lists like this
one which depend on the exchange of information (I consider the
information and interest I get from this list easily repays me).
-tony
From ard at p850ug1.demon.co.uk Thu Oct 1 15:47:18 2009
From: ard at p850ug1.demon.co.uk (Tony Duell)
Date: Thu, 1 Oct 2009 21:47:18 +0100 (BST)
Subject: Classic computers endangered!
In-Reply-To:
from "Murray McCullough" at Sep 30, 9 06:15:08 pm
Message-ID:
> part of microcomputing history? Will classiccmp.org discuss early ucomputers
> in 5 yrs., 10 yrs.?
Doesn't cctalk/cctech alread discuss 'early' microcomputers? I put in
the quotes becasue some quite recent ones would appear to be on-topic.
23 years ago a friend and I realised that while (at that time) museums,
etc were preserving some very early computer stuff, nothing was being
done aout the more recent machines (minicomputers, micros, etc) and that
unless something was done then 30 years fo computer history was going to
vanish. The result was that our houses became full of old computers...
-tony
From evan at snarc.net Thu Oct 1 16:16:19 2009
From: evan at snarc.net (Evan Koblentz)
Date: Thu, 01 Oct 2009 17:16:19 -0400
Subject: Classic computers endangered!
In-Reply-To:
References:
Message-ID: <4AC51C23.5080905@snarc.net>
> Well, this part is just plain uninfomed:
>
> "Science museums around the world have long collected computing
> kit. But there are only three institutions actively growing
> collections of outdated computers and restoring them to working
> order: the UK's National Museum of Computing (NMOC) at Bletchley
> Park; the Computer History Museum in Silicon Valley; and the Heinz
> Nixdorf MuseumsForum (HNF) in Padaborn, Germany."
>
> Only three? I can name a half-dozen more off the top of my head
> without even googling.
>
There are 15(-ish) computer museums just in the U.S.A.
From mcguire at neurotica.com Thu Oct 1 16:22:34 2009
From: mcguire at neurotica.com (Dave McGuire)
Date: Thu, 1 Oct 2009 17:22:34 -0400
Subject: Classic computers endangered!
In-Reply-To:
References:
Message-ID:
On Oct 1, 2009, at 4:59 PM, Tony Duell wrote:
>> Here's a link to (what appears to be) the article in question:
>> > computers-on-the-danger-list.html?DCMP=OTC-rss&nsref=tech>
>
> The photographs have a couple of curiousities in them. Firstly,
> they say
> that the PDP8 line started in 1965 (which sounds aout right),
It is correct.
> but the
> picture is of a much later (early 70's) PDP8/e (which uses TTL ICs,
> not
> discrete transistors).
1970, yes. There aren't many other models around to photograph,
though, comparatively speaking.
-Dave
--
Dave McGuire
Port Charlotte, FL
From IanK at vulcan.com Thu Oct 1 17:09:19 2009
From: IanK at vulcan.com (Ian King)
Date: Thu, 1 Oct 2009 15:09:19 -0700
Subject: Classic computers endangered!
In-Reply-To:
References:
Message-ID:
> -----Original Message-----
> From: cctalk-bounces at classiccmp.org [mailto:cctalk-
> bounces at classiccmp.org] On Behalf Of Dave McGuire
> Sent: Thursday, October 01, 2009 2:23 PM
> To: General Discussion: On-Topic and Off-Topic Posts
> Subject: Re: Classic computers endangered!
>
> On Oct 1, 2009, at 4:59 PM, Tony Duell wrote:
> >> Here's a link to (what appears to be) the article in question:
> >> >> computers-on-the-danger-list.html?DCMP=OTC-rss&nsref=tech>
> >
> > The photographs have a couple of curiousities in them. Firstly,
> > they say
> > that the PDP8 line started in 1965 (which sounds aout right),
>
> It is correct.
>
> > but the
> > picture is of a much later (early 70's) PDP8/e (which uses TTL ICs,
> > not
> > discrete transistors).
>
> 1970, yes. There aren't many other models around to photograph,
> though, comparatively speaking.
>
> -Dave
>
Well, we have everything but a Straight-8 and an 8/a (but we're always looking). The 8/i doesn't seem all that uncommon. Of course, according to New Scientist, we don't even exist. :-)
From mcguire at neurotica.com Thu Oct 1 18:09:41 2009
From: mcguire at neurotica.com (Dave McGuire)
Date: Thu, 1 Oct 2009 19:09:41 -0400
Subject: Classic computers endangered!
In-Reply-To:
References:
Message-ID:
On Oct 1, 2009, at 6:09 PM, Ian King wrote:
> Well, we have everything but a Straight-8 and an 8/a (but we're
> always looking). The 8/i doesn't seem all that uncommon. Of
> course, according to New Scientist, we don't even exist. :-)
I've been looking for an 8/i for, quite literally, twenty years.
I have seen precisely ONE in the flesh. I assure you they're quite
uncommon. ;)
(Now be careful Ian, for if you disagree, I'll take it as an offer
for you to find one for me! ;))
-Dave
--
Dave McGuire
Port Charlotte, FL
From healyzh at aracnet.com Thu Oct 1 19:48:34 2009
From: healyzh at aracnet.com (Zane H. Healy)
Date: Thu, 1 Oct 2009 17:48:34 -0700 (PDT)
Subject: Classic computers endangered!
In-Reply-To:
References:
Message-ID:
On Thu, 1 Oct 2009, Ian King wrote:
> Well, we have everything but a Straight-8 and an 8/a (but we're always
> looking). The 8/i doesn't seem all that uncommon. Of course, according
> to New Scientist, we don't even exist. :-)
Is there a reason you don't have an -8/a?
Zane
From derschjo at mail.msu.edu Thu Oct 1 22:09:34 2009
From: derschjo at mail.msu.edu (Josh Dersch)
Date: Thu, 01 Oct 2009 20:09:34 -0700
Subject: FS: PDP 8/e (Seattle, WA)
Message-ID: <4AC56EEE.7030006@mail.msu.edu>
So a couple of weekends ago I was down sick with the flu and one late
evening when I couldn't sleep I purchased a PDP-8/e off eBay, having
convinced myself it was a really good deal while only half-awake.
Here's the thing -- I already have an 8/e; I have no idea what I'm going
to do with /two /of them.
Here's what I have -- a bare-minimum 8/e with 4k of core, the basic CPU
set and a single Omnibus backplane. No top cover. Front panel bulbs
all seem good.
It works fine (as far as I can tell -- programs I toggle in run, etc),
is very clean, and is in decent shape. (A few scratches on the front
panel, but honestly it doesn't look that bad.) An interesting detail --
the front panel says "digital equipment international ltd galway,
ireland" instead of the usual "maynard, massachusetts" herald. I'm
assuming that means it's worth a million dollars. Think of the deal
you'll be getting!
I'm asking only what I paid for it, which is $650. (Or alternately,
trading for something "cool." Always looking for an Altair or a Xerox
D-machine... :))
I'd prefer local pickup (and I'll drive a ways to meet you) but if you
want to arrange something with Craters & Freighters or something similar
I can do that too. I don't trust myself to pack and ship this thing
myself without breaking it (and that would be a shame.)
I can take pictures if desired.
Thanks,
Josh
From spectre at floodgap.com Thu Oct 1 22:13:06 2009
From: spectre at floodgap.com (Cameron Kaiser)
Date: Thu, 1 Oct 2009 20:13:06 -0700 (PDT)
Subject: Macintosh IIci cache cards
Message-ID: <200910020313.n923D6XM012860@floodgap.com>
My hungry, hungry Mac IIcis gradually eat through cache cards (about one
every three or four years) and I'm down to a low stock again. If you have
some sitting in your closet doing nothing and could possibly be persuaded
to discuss their future, please send me a message off-list. You will make
IIcis doing real work in my apartment very happy :)
--
------------------------------------ personal: http://www.cameronkaiser.com/ --
Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com
-- If Milli Vanilli falls in the woods, does someone else make a sound? -- rhf
From rickb at bensene.com Thu Oct 1 22:26:13 2009
From: rickb at bensene.com (Rick Bensene)
Date: Thu, 1 Oct 2009 20:26:13 -0700
Subject: Classic computers endangered!
In-Reply-To:
References: <4AC46593.7000103@philpem.me.uk> from "Philip Pemberton" at Oct 1,
9 09:17:23 am
Message-ID:
Tony wrote:
> Secondly, in the picture of the HP250, am I correct that there's a
> Casio AL2000 calculator sitting on it (maybe badged Commodore, like
the
> AL1000 sometimes was).
Yup, it's an AL-2000 all right. No way to tell (I tried to save the
image and zoom in but the resolution isn't high enough) if it's Casio or
Commodore-badged (or even possibly Sperry/Remington).
Rick Bensene
The Old Calculator Museum
http://oldcalculatormuseum.com/casal2k.html
From IanK at vulcan.com Thu Oct 1 23:12:40 2009
From: IanK at vulcan.com (Ian King)
Date: Thu, 1 Oct 2009 21:12:40 -0700
Subject: Classic computers endangered!
In-Reply-To:
References:
,
Message-ID:
________________________________________
From: cctalk-bounces at classiccmp.org [cctalk-bounces at classiccmp.org] On Behalf Of Zane H. Healy [healyzh at aracnet.com]
Sent: Thursday, October 01, 2009 5:48 PM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: RE: Classic computers endangered!
On Thu, 1 Oct 2009, Ian King wrote:
> Well, we have everything but a Straight-8 and an 8/a (but we're always
> looking). The 8/i doesn't seem all that uncommon. Of course, according
> to New Scientist, we don't even exist. :-)
Is there a reason you don't have an -8/a?
Zane
From brain at jbrain.com Thu Oct 1 23:13:53 2009
From: brain at jbrain.com (Jim Brain)
Date: Thu, 01 Oct 2009 23:13:53 -0500
Subject: Classic computers endangered!
In-Reply-To: <200910011245.n91CjiXk009500@floodgap.com>
References: <200910011245.n91CjiXk009500@floodgap.com>
Message-ID: <4AC57E01.8000909@jbrain.com>
Cameron Kaiser wrote:
>> I read an article today in 'New Scientist' entitled 'Innovation: Classic
>> computers on the danger list' with Tom Simonite writing: "Pretty much every
>> adult alive today has seen computers change the world, but we are doing
>> precious little to celebrate the influence of the computers and software
>> that created our society." Indeed! Are we failing to preserve the earliest
>> part of microcomputing history? Will classiccmp.org discuss early ucomputers
>> in 5 yrs., 10 yrs.?
>>
>
> I like to think us fresh-faced young whippersnappers will carry the torch,
> once we're off everybody's lawn. ;-)
>
>
Don't we have to grow a beard and get a "real computer" first?
http://tomayko.com/writings/that-dilbert-cartoon
Jim "mumbles something about the list telling him he can;t be one of
them until he's programmed a machine on a *REAL* TTY, where TTY involved
something mechanical" Brain
--
Jim Brain, Brain Innovations (X)
brain at jbrain.com
Dabbling in WWW, Embedded Systems, Old CBM computers, and Good Times!
Home: http://www.jbrain.com
From IanK at vulcan.com Thu Oct 1 23:13:06 2009
From: IanK at vulcan.com (Ian King)
Date: Thu, 1 Oct 2009 21:13:06 -0700
Subject: Classic computers endangered!
In-Reply-To:
References:
,
Message-ID:
We just haven't found one in decent condition at a decent price... and it hasn't been a priority. (I have one in my personal collection, and, well, it's a computer. With *no* blinkenlights.) Now if you have a PDP-11/70, or an IBM 360/67.... :-) -- Ian
________________________________________
From: cctalk-bounces at classiccmp.org [cctalk-bounces at classiccmp.org] On Behalf Of Zane H. Healy [healyzh at aracnet.com]
Sent: Thursday, October 01, 2009 5:48 PM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: RE: Classic computers endangered!
On Thu, 1 Oct 2009, Ian King wrote:
> Well, we have everything but a Straight-8 and an 8/a (but we're always
> looking). The 8/i doesn't seem all that uncommon. Of course, according
> to New Scientist, we don't even exist. :-)
Is there a reason you don't have an -8/a?
Zane
From ethan.dicks at gmail.com Thu Oct 1 23:41:11 2009
From: ethan.dicks at gmail.com (Ethan Dicks)
Date: Fri, 2 Oct 2009 00:41:11 -0400
Subject: Classic computers endangered!
In-Reply-To:
References:
Message-ID:
On Thu, Oct 1, 2009 at 7:09 PM, Dave McGuire wrote:
> ?I've been looking for an 8/i for, quite literally, twenty years. ?I have
> seen precisely ONE in the flesh. ?I assure you they're quite uncommon. ;)
I've only seen one as well - of course, it's one I see all the time
since it's mine...
I haven't seen any in person anywhere else - I'd also go with
"uncommon" since not that many were made, and they weren't as portable
as, say, the -8/L (of which I've seen half a dozen).
I think the one model I've never seen in person is the -8/f. Seen a
few of the -8/e and a couple -8/m, but not the -8/f.
-ethan
From ethan.dicks at gmail.com Thu Oct 1 23:42:29 2009
From: ethan.dicks at gmail.com (Ethan Dicks)
Date: Fri, 2 Oct 2009 00:42:29 -0400
Subject: Classic computers endangered!
In-Reply-To: <4AC57E01.8000909@jbrain.com>
References: <200910011245.n91CjiXk009500@floodgap.com>
<4AC57E01.8000909@jbrain.com>
Message-ID:
On Fri, Oct 2, 2009 at 12:13 AM, Jim Brain wrote:
> Cameron Kaiser wrote:
>> I like to think us fresh-faced young whippersnappers will carry the torch,
>> once we're off everybody's lawn. ;-)
>
> Don't we have to grow a beard and get a "real computer" first?
>
> http://tomayko.com/writings/that-dilbert-cartoon
When "that cartoon" first came out 15ish years ago, I printed it out,
hung it above my desk, and taped a nickle to it.
Nobody who visited me ever said a peep about it.
-ethan
From ethan.dicks at gmail.com Thu Oct 1 23:46:40 2009
From: ethan.dicks at gmail.com (Ethan Dicks)
Date: Fri, 2 Oct 2009 00:46:40 -0400
Subject: Classic computers endangered!
In-Reply-To:
References: <4AC46593.7000103@philpem.me.uk>
Message-ID:
On Thu, Oct 1, 2009 at 4:59 PM, Tony Duell wrote:
> I am also getting somewhat fed up with this idea that classic computers
> are difficult to repair (or worse 'can't be repaired'). In general it is
> easier to find parts for older machines that new ones. Most of the bits
> (at least those that are likely to fail) for 1960's and 1970's machines
> are not hard to find. But just try finding components for 1990's
> machines.
Agreed for many parts of 1990s machines, but as for 1960s and 1970s
DEC machines in particular (the subject I know more about than
others), there are a few parts here and there that are getting
difficult to find without robbing them from other machines - Omnibus
buffers come to mind first, and certain parts from the -8/i and -8/L
era, like the 74H40 or the 7482. They aren't complete unobtanium yet,
but they are nowhere near as easy to find as they were 10 years ago.
Mostly, though, for that era, I find that 7474s, 7400s, and one or two
other TTL parts are the most likely to turn up with one or more bad
gates when I start debugging things made from M-series modules. Those
are not hard to find, and not difficult at all to replace.
-ethan
From pontus at Update.UU.SE Fri Oct 2 01:03:22 2009
From: pontus at Update.UU.SE (Pontus Pihlgren)
Date: Fri, 2 Oct 2009 08:03:22 +0200
Subject: Classic computers endangered!
In-Reply-To: <4AC51C23.5080905@snarc.net>
References: <4AC51C23.5080905@snarc.net>
Message-ID: <20091002060322.GA20012@Update.UU.SE>
On Thu, Oct 01, 2009 at 05:16:19PM -0400, Evan Koblentz wrote:
>
> >Well, this part is just plain uninfomed:
> >
> > "Science museums around the world have long collected computing
> > kit. But there are only three institutions actively growing
> > collections of outdated computers and restoring them to working
> > order: the UK's National Museum of Computing (NMOC) at Bletchley
> > Park; the Computer History Museum in Silicon Valley; and the Heinz
> > Nixdorf MuseumsForum (HNF) in Padaborn, Germany."
> >
> >Only three? I can name a half-dozen more off the top of my head
> >without even googling.
> There are 15(-ish) computer museums just in the U.S.A.
Not to mention the technical museums that does not focus on computers
but have large collections. For instance a Cray-1 is on exibit in the
Stockholm technical museum and there is a _very_ nice setup of a Cray-2
in the Musee des Arts et Metiers in Paris.
/P
From jlobocki at gmail.com Thu Oct 1 13:24:10 2009
From: jlobocki at gmail.com (joe lobocki)
Date: Thu, 1 Oct 2009 13:24:10 -0500
Subject: Classic computers endangered!
In-Reply-To: <4AC46593.7000103@philpem.me.uk>
References:
<4AC46593.7000103@philpem.me.uk>
Message-ID:
I think we will be the ones to carry on microcomputer history, and I'm sure
there will always be groups who will discuss this and restore equipment like
we do now, the same way that there aren't too many auto museums, but all
over the world, there are plenty of personal collections and museums in
peoples backyards.
On Thu, Oct 1, 2009 at 3:17 AM, Philip Pemberton
wrote:
> Murray McCullough wrote:
>
>> I read an article today in 'New Scientist' entitled 'Innovation: Classic
>> computers on the danger list' with Tom Simonite writing: "Pretty much
>> every
>> adult alive today has seen computers change the world, but we are doing
>> precious little to celebrate the influence of the computers and software
>> that created our society." Indeed! Are we failing to preserve the earliest
>> part of microcomputing history? Will classiccmp.org discuss early
>> ucomputers
>> in 5 yrs., 10 yrs.?
>>
>
> Here's a link to (what appears to be) the article in question:
> <
> http://www.newscientist.com/article/dn17805-innovation-classic-computers-on-the-danger-list.html?DCMP=OTC-rss&nsref=tech
> >
>
> Cheers,
> --
> Phil.
> classiccmp at philpem.me.uk
> http://www.philpem.me.uk/
>
From csquared3 at tx.rr.com Thu Oct 1 17:03:19 2009
From: csquared3 at tx.rr.com (CSquared)
Date: Thu, 1 Oct 2009 17:03:19 -0500
Subject: PCjr NMI and 8253 Timer interactions
References: <4AC2362D.2050200@brutman.com>,
<066301ca41eb$7c803f20$6400a8c0@acerd3c08b49af>
<4AC47714.27126.25F57FB@cclist.sydex.com>
Message-ID: <001901ca42e2$fcd21930$6400a8c0@acerd3c08b49af>
----- Original Message -----
From: "Chuck Guzis"
To: "General Discussion: On-Topic and Off-Topic Posts"
Sent: Thursday, October 01, 2009 11:32 AM
Subject: Re: PCjr NMI and 8253 Timer interactions
> On 30 Sep 2009 at 11:31, CSquared wrote:
>
>> Many years ago I tried a similar trick. I think I wanted a 10
>> millisecond interrupt rate instead of 55ms for an embedded DOS
>> application, and I got it to work - sort of. However, I soon
>> discovered that many other things including the Borland delay()
>> function depend on the 55ms interval, so I rather quickly abandoned
>> that line of thinking. I rather suspect your PCjr keyboard driver is
>> making similar assumptions regarding the tick rate.
>
> Several programs made this work on the PC, as long as the interval
> could be a sub-multiple of 55 msec. So, for instance, if you could
> live with 11 msec. or 5.5 msec., this is how you would do it.
>
> Hook the interrupt 9 vector and create your own ISR for 4 of 5 timer
> interrupts, then direct the the 5th to the normal vector. All that's
> required in your ISR is any register saving required for your own
> needs, and a routine to issue an EOI to the 8259. Works like a
> charm--everything runs just as it should.
Neat! I never thought of that, but I can see that it would work just fine.
I'm pretty sure I made the mistake of changing the 8253 counting rate
without compensating for it as you describe. I probably could have lived
with an 11ms interrupt rate too. I was porting a good-sized semi-ancient
program from PLM-51 on an 8032 to C and PLM-86 to run on an embedded PC
motherboard, and did not want to have to change a whole bunch of timing
constants with the attendant risk of overlooking something. I wound up just
changing all the constants instead. I'll have to keep your idea in mind for
future reference. Believe it or not, I still do a bit of development under
DOS at times.
>
> However, on Mike's Peanut, there is no 8259. Everything goes through
> the NMI handler--a very bad decision on IBM's part, seeing as how the
> 8259 was one of the least expensive Intel 8x support chips. A
> rudimentary prioritized interrupt system could have been implemented
> with a priority encoder and some other glue.
I did not know that; I've never done anything at all with a PCjr.
>
> Cheers,
> Chuck
>
>
From ddsnyder at zoominternet.net Thu Oct 1 18:44:06 2009
From: ddsnyder at zoominternet.net (Daniel Snyder)
Date: Thu, 1 Oct 2009 19:44:06 -0400
Subject: DEC paint: textures
References:
<4AC248B1.5010106@bitsavers.org>
Message-ID: <001901ca42f1$10c99b80$6501a8c0@HP24150918428>
Contacted Randolph Products, reply is:
In the past we used to have relatively strong demand for various Digital
Equip colors in aerosol form. this demand has dropped to the point we were
no longer stock liquid or aerosol in Dgital colors. We can make as an "on
demand item".
Minimum production would be approx 100-120 cans. If you are interested
please advise and I will have our sales office prepare a quotation
Jim Leighton
Randolph Products
33 Haynes Circle
Chicopee, MA 01020
413-592-4191 ext 104
413-594-7321 fax
JLeighton at randolphproducts.com
www.randolphproducts.com
I have a Alphaserver DS20E that a knucklehead packed.. a bit scrapped up, so
I want to refinish the
case sides and top.. Top Gun Blue is my current search.
----- Original Message -----
From: "Al Kossow"
To: "General Discussion: On-Topic and Off-Topic Posts"
Sent: Tuesday, September 29, 2009 1:49 PM
Subject: Re: DEC paint: textures
> Wai-Sun Chia wrote:
>> Google "hammerite" and "powder coating".
>>
>
> sigh..
>
> http://classiccmp.org/pipermail/cctalk/2006-November/228009.html
>
>
>
From snhirsch at gmail.com Thu Oct 1 20:44:41 2009
From: snhirsch at gmail.com (Steven Hirsch)
Date: Thu, 1 Oct 2009 21:44:41 -0400 (EDT)
Subject: Fairlight CMI
In-Reply-To: <19D95E38-C48B-459D-80A8-5A4FD92E5863@neurotica.com>
References: <399726.45839.qm@web56202.mail.re3.yahoo.com>
<0E2CDB22-4B42-4A26-9E04-C59FCCDAF8B6@neurotica.com>
<19D95E38-C48B-459D-80A8-5A4FD92E5863@neurotica.com>
Message-ID:
On Thu, 1 Oct 2009, Dave McGuire wrote:
> On Sep 30, 2009, at 6:10 PM, Steven Hirsch wrote:
>>>> Being a vintage computer and synthesiser fan, I'd love
>>>> to get a Fairlight CMI for restoration/care/actual use
>>>> so if anyone has any Fairlight CMI model they would like
>>>> to either sell or trade let me know. Can be EU or US.
>>>
>>> Mmmmm, Fairlight.
>>>
>>> Years ago (1988 or so?) my friend Mike in Delaware had a Synclavier II.
>>> That thing was damn impressive. Sadly he no longer has it. Unless I'm
>>> mistaken, there's a MicroVAX-II in there!
>>
>> There's been earlier discussion on this list, but short answer is that you
>> are mistaken :-). The Synclavier was built around New England Digital's
>> own bit-slice CPU originally developed for their ABEL minicomputer system.
>> Probably based on AMD 29xx parts, although I do not know that for sure.
>
> Really? I was actually pretty sure about that. I never saw the innards of
> the machine myself, but I will happily stand corrected!
>
>> A company I ran in the 80s did a lot of audio systems contracting work with
>> NED and I recall seeing terminals all over the place that were logged on to
>> the in-house ABEL system. I think they used it for inventory, billing,
>> etc. All the support software was developed in the ABEL environment AFAIK.
>
> I've gotta assume this is different from the ABEL PLD design language. I've
> never heard of it, what is it?
I forget what the acronym means, but it has nothing to do with the ABEL
PLD language. NED was started by a couple of folks from Dartmouth
College, Sidney Alonzo and Cameron Jones. A mutual friend at the time
described Cameron as "capable of scrolling code on the inside of his
eyelids" :-).
I suspect they produced the ABEL minicomputer to get some cash-flow coming
in while the Synclavier was being productized. The work on the
synthesizer started at Dartmouth. During the heyday of NED, they endowed
the college with the slickest electronic music studio you ever laid eyes
on. An entire lab full of Synclavier keyboards and terminals running
time-shared off a greatly expanded CPU.
My company also did a lot of work for Dartmouth and it was always a gas to
be in that room! From memory, I think we installed a bunch of audio
patchbays and multi-core trunk cables, but that was almost 25 years ago
and things are a bit vague.
--
From cc at informatik.uni-stuttgart.de Fri Oct 2 03:46:37 2009
From: cc at informatik.uni-stuttgart.de (Christian Corti)
Date: Fri, 2 Oct 2009 10:46:37 +0200 (CEST)
Subject: Some new pictures...
In-Reply-To:
References:
Message-ID:
On Wed, 30 Sep 2009, Richard wrote:
> Wow... awesome stuff. Too bad they're having to downsize a bunch of
> it. The Tektronix 4006 terminal in there is particularly rare. The
> 4014 isn't exactly common either, but I'm only aware of one person
> that has a 4006 -- our own Bob Rosenbloom.
I know two other persons, one of them is me.
Christian
From cc at informatik.uni-stuttgart.de Fri Oct 2 03:49:11 2009
From: cc at informatik.uni-stuttgart.de (Christian Corti)
Date: Fri, 2 Oct 2009 10:49:11 +0200 (CEST)
Subject: PCjr NMI and 8253 Timer interactions
In-Reply-To: <4AC3FD9D.4000709@brutman.com>
References: <4AC2362D.2050200@brutman.com>
<20090929215904.GA32396@brevard.conman.org>
<4AC291F6.5040705@brutman.com>
<20090930055330.GA29752@brevard.conman.org>
<4AC3FD9D.4000709@brutman.com>
Message-ID:
On Wed, 30 Sep 2009, Michael B. Brutman wrote:
> on floating point emulation in the Turbo C++ 3.0 library. Even though I
^^^
I beg your pardon?
> On an unrelated note, CLI and STI are not enough to prevent an NMI on this
Guess why it's called a non-maskable interrupt...
Christian
From cc at informatik.uni-stuttgart.de Fri Oct 2 04:00:53 2009
From: cc at informatik.uni-stuttgart.de (Christian Corti)
Date: Fri, 2 Oct 2009 11:00:53 +0200 (CEST)
Subject: Classic computers endangered!
In-Reply-To:
References:
Message-ID:
On Thu, 1 Oct 2009, Richard wrote:
> Well, this part is just plain uninfomed:
>
> "Science museums around the world have long collected computing
> kit. But there are only three institutions actively growing
> collections of outdated computers and restoring them to working
> order: the UK's National Museum of Computing (NMOC) at Bletchley
> Park; the Computer History Museum in Silicon Valley; and the Heinz
> Nixdorf MuseumsForum (HNF) in Padaborn, Germany."
>
> Only three? I can name a half-dozen more off the top of my head
> without even googling.
And at least the HNF does not restore/run their machines, they don't even
display them in a logical manner (and it's Paderborn, not Padaborn ;-))
OTOH our little museum has been collecting/restoring etc. for much
over ten years now. And of course, almost everything on display is
functional (people don't want to see dead junk, they are much more
impressed by a demonstration).
Christian
From hachti at hachti.de Fri Oct 2 07:14:14 2009
From: hachti at hachti.de (Philipp Hachtmann)
Date: Fri, 02 Oct 2009 14:14:14 +0200
Subject: IMP system software
In-Reply-To: <4AC510E3.6080802@adrianwise.co.uk>
References: <76E77758-DF45-48E5-A376-DF4EABAA75D8@loomcom.com> (sfid-20090930_142507_081247_3810518B) <4AC4F96C.30004@heeltoe.com> <4887868A-86FE-4250-8C77-B13A63EF9197@loomcom.com>
<4AC510E3.6080802@adrianwise.co.uk>
Message-ID: <4AC5EE96.50201@hachti.de>
Adrian Wise wrote:
> The 516 and the 316 are 100% code compatible.
Just wanted to write that...
> Just the cycle time
> differs (0.96us for the 516, 1.3us for the 316 IIRC)
Have you tuned up your H316? My machine is running on 1.6us! In that
case I would be glad to get your CPU and memory timing configuration :-)
(Otherwise it would be an interesting experiment to see if and how much
faster a H316 could be made. I'm quite confident that Honeywell/3C
delivered the machines in a very stable configuration with big reserves
with respect to reliability)
Best wishes,
Philipp :-)
From tshoppa at wmata.com Fri Oct 2 08:28:44 2009
From: tshoppa at wmata.com (Shoppa, Tim)
Date: Fri, 2 Oct 2009 09:28:44 -0400
Subject: PDP 14
Message-ID:
> Does anyone have a PDP 14? Or has anyone ever seen one out in the "wild"?
> If so, please contact me directly ;)
The PDP-14 was not a conventional computer... it was what we call today a PLC
(programmable logic controller). Very adaptable to ladder logic and a bit more.
DEC was pretty swift in how they allowed the PDP-14 to be configured via a real computer (a -11 or -8). It wasn't the GUI of PLC configuration today or even of the 80's, but it was a good start.
The overall model of PLC configured or monitored by a computer still holds true today, I think that DEC could have really taken this idea and run with it but the overlap between industrial control and computers even today is less than thorough. The computer geeks don't understand the industrial control and process engineers for the most part (thus the common misuse of Windows PC's where a PLC could do the job far better and without point-and-drool.)
IMHO if you are interested in PDP-14 you must also be interested in early Modicon PLC's, which were far more common, predate the PDP-14, used core memory like the PDP-14, and which the PDP-14 was pretty much a clone of. I think Modicon was also a Massachusets company like DEC.
I never used a PDP-14 but I always understood them to be very much like the core-based Modicons I used.
Tim.
From mbbrutman-cctalk at brutman.com Fri Oct 2 08:30:12 2009
From: mbbrutman-cctalk at brutman.com (Michael B. Brutman)
Date: Fri, 02 Oct 2009 08:30:12 -0500
Subject: PCjr NMI and 8253 Timer interactions
In-Reply-To:
References: <4AC2362D.2050200@brutman.com> <20090929215904.GA32396@brevard.conman.org> <4AC291F6.5040705@brutman.com> <20090930055330.GA29752@brevard.conman.org> <4AC3FD9D.4000709@brutman.com>
Message-ID: <4AC60064.8040407@brutman.com>
Christian Corti wrote:
> On Wed, 30 Sep 2009, Michael B. Brutman wrote:
>> on floating point emulation in the Turbo C++ 3.0 library. Even though I
> ^^^
> I beg your pardon?
Yes .. Turbo C++ 3.0 for DOS. I don't use a lot of the fancier C++
language features because they are not appropriate for this type of
programming. It looks like very well structured and encapsulated C when
I use it.
>> On an unrelated note, CLI and STI are not enough to prevent an NMI on
>> this
>
> Guess why it's called a non-maskable interrupt...
Thanks - I don't think I missed that though.
I think you missed the subtlety of the problem - on a normal PC an NMI
would be very rare. On a PCjr you can hit any key on the keyboard and
cause it. That makes the the CLI/STI exposure to NMI much greater on
this machine. (And on the PC Convertible from what I am reading.)
> Christian
>
>
From cclist at sydex.com Fri Oct 2 10:33:40 2009
From: cclist at sydex.com (Chuck Guzis)
Date: Fri, 02 Oct 2009 08:33:40 -0700
Subject: PDP 14
In-Reply-To:
References:
Message-ID: <4AC5BAE4.1691.7506A32@cclist.sydex.com>
On 2 Oct 2009 at 9:28, Shoppa, Tim wrote:
> IMHO if you are interested in PDP-14 you must also be interested in
> early Modicon PLC's, which were far more common, predate the PDP-14,
> used core memory like the PDP-14, and which the PDP-14 was pretty much
> a clone of. I think Modicon was also a Massachusets company like DEC.
Do any IBM 1710s survive? That certainly has to qualify as one of
the earliest process-control computers around.
--Chuck
From chd_1 at nktelco.net Fri Oct 2 17:04:06 2009
From: chd_1 at nktelco.net (Charles H Dickman)
Date: Fri, 02 Oct 2009 18:04:06 -0400
Subject: PDP 14
In-Reply-To:
References:
Message-ID: <4AC678D6.8000101@nktelco.net>
I have never seen one alive, but I have the remains of one: logic unit
boards, miscellaneous generic flip-chips, some I/O boards, etc.
Unfortunately, no backplane. This was the original PDP-14
(Straight-14?). It was to have a core-rope ROM in the final installation
vs. core. I think there were later versions that had writable program
storage.
Shoppa, Tim wrote:
> The PDP-14 was not a conventional computer... it was what we call today a PLC
>
> (programmable logic controller). Very adaptable to ladder logic and a bit more.
>
Very primitive, but the right thing for discrete logic control.
I have some notes about it here: http://www.chdickman.com/pdp14/
I think Motorola had a 16pin dip logic unit that did basically the same
thing.
> DEC was pretty swift in how they allowed the PDP-14 to be configured via a real computer (a -11 or -8). It wasn't the GUI of PLC configuration today or even of the 80's, but it was a good start.
>
The parts I have came from a system that was to have run a stamping
press. In this case, the PDP-14 was basically a discrete I/O adapter for
a PDP-8/e.
> The overall model of PLC configured or monitored by a computer still holds true today, I think that DEC could have really taken this idea and run with it but the overlap between industrial control and computers even today is less than thorough. The computer geeks don't understand the industrial control and process engineers for the most part (thus the common misuse of Windows PC's where a PLC could do the job far better and without point-and-drool.)
>
PLCs to control the process and PCs to monitor the process. I don't know
that I want Vista in charge. It might be only a tool, but that tool
might be very expensive.
> IMHO if you are interested in PDP-14 you must also be interested in early Modicon PLC's, which were far more common, predate the PDP-14, used core memory like the PDP-14, and which the PDP-14 was pretty much a clone of. I think Modicon was also a Massachusets company like DEC.
>
The cool thing about MODICON is that a simple protocol that they devised
has been widely implemented. It has become a least common denominator
language for communication between devices and controllers.
-chuck
From trixter at oldskool.org Fri Oct 2 21:13:10 2009
From: trixter at oldskool.org (Jim Leonard)
Date: Fri, 02 Oct 2009 21:13:10 -0500
Subject: XTIDE controller now available
Message-ID: <4AC6B336.6010501@oldskool.org>
I wanted to let all of you know that the 2nd revision of my friend's
PC/XT IDE controller is now available. For those of you not in the
know, this is a way of using modern IDE hard drives in your 8bit PC or
XT system. Works with drives up to 137G (your O/S also has to support
it; 8.4G is way more common) and Compact Flash->IDE controllers too.
CD-ROM support is likely coming eventually, but he has to write an
entire driver that MSCDEX would talk to.
They're being sold at cost: $30 for a kit to solder your own, $40 for a
pre-built and tested card.
These are not quite the end production unit, but darn close. Works in
PC/XT clones, as well as Tandy 1000 series machines (anyone who knows
how hard it is to get an IDE drive into a Tandy will appreciate this).
They are also going to be building one that will fit into a PCjr sidecar
someday. ;)
Details are available on the last message of this forum page:
http://www.vintage-computer.com/vcforum/showthread.php?t=12359&page=109
--
Jim Leonard (trixter at oldskool.org) http://www.oldskool.org/
Help our electronic games project: http://www.mobygames.com/
Or check out some trippy MindCandy at http://www.mindcandydvd.com/
A child borne of the home computer wars: http://trixter.wordpress.com/
From ploopster at gmail.com Sat Oct 3 01:13:19 2009
From: ploopster at gmail.com (Sridhar Ayengar)
Date: Sat, 03 Oct 2009 02:13:19 -0400
Subject: Classic computers endangered!
In-Reply-To: <20091002060322.GA20012@Update.UU.SE>
References: <4AC51C23.5080905@snarc.net>
<20091002060322.GA20012@Update.UU.SE>
Message-ID: <4AC6EB7F.5080701@gmail.com>
Pontus Pihlgren wrote:
>> There are 15(-ish) computer museums just in the U.S.A.
>
> Not to mention the technical museums that does not focus on computers
> but have large collections. For instance a Cray-1 is on exibit in the
> Stockholm technical museum and there is a _very_ nice setup of a Cray-2
> in the Musee des Arts et Metiers in Paris.
Doesn't the National Museum of American History keep a sizeable
collection too?
Peace... Sridhar
From ploopster at gmail.com Sat Oct 3 01:25:42 2009
From: ploopster at gmail.com (Sridhar Ayengar)
Date: Sat, 03 Oct 2009 02:25:42 -0400
Subject: XTIDE controller now available
In-Reply-To: <4AC6B336.6010501@oldskool.org>
References: <4AC6B336.6010501@oldskool.org>
Message-ID: <4AC6EE66.8070004@gmail.com>
Jim Leonard wrote:
> They're being sold at cost: $30 for a kit to solder your own, $40 for a
> pre-built and tested card.
Is $40 for assembled-by-hand or wave-soldered?
Peace... Sridhar
From teoz at neo.rr.com Sat Oct 3 01:42:07 2009
From: teoz at neo.rr.com (Teo Zenios)
Date: Sat, 3 Oct 2009 02:42:07 -0400
Subject: Classic computers endangered!
References:
<4AC51C23.5080905@snarc.net><20091002060322.GA20012@Update.UU.SE>
<4AC6EB7F.5080701@gmail.com>
Message-ID: <0D3624A7D94642C09E7E7CCF1C7EBDFA@dell8300>
----- Original Message -----
From: "Sridhar Ayengar"
To: "General Discussion: On-Topic and Off-Topic Posts"
Sent: Saturday, October 03, 2009 2:13 AM
Subject: Re: Classic computers endangered!
> Pontus Pihlgren wrote:
>>> There are 15(-ish) computer museums just in the U.S.A.
>>
>> Not to mention the technical museums that does not focus on computers but
>> have large collections. For instance a Cray-1 is on exibit in the
>> Stockholm technical museum and there is a _very_ nice setup of a Cray-2
>> in the Musee des Arts et Metiers in Paris.
>
> Doesn't the National Museum of American History keep a sizeable collection
> too?
>
> Peace... Sridhar
Keeping machines is good, archiving the software, operating manuals, and
production documentation is better, but having people around that can
actually use those resources to keep those machines running (understanding
how they work and fixing them as needed with spare parts) would be the best.
How many museums actually have people working there that can do anything
outside of stack, catalog, prop up items, and dust them?
Cars basically operate today like they did in the 1920's , but computers
from the 50's are nothing like today's machines (input/output/construction)
so it would be harder to get them setup and running.
From teoz at neo.rr.com Sat Oct 3 01:46:39 2009
From: teoz at neo.rr.com (Teo Zenios)
Date: Sat, 3 Oct 2009 02:46:39 -0400
Subject: XTIDE controller now available
References: <4AC6B336.6010501@oldskool.org> <4AC6EE66.8070004@gmail.com>
Message-ID: <0B113CD3AE4A4ECFA7FE72D7CB29C306@dell8300>
----- Original Message -----
From: "Sridhar Ayengar"
To: "General Discussion: On-Topic and Off-Topic Posts"
Sent: Saturday, October 03, 2009 2:25 AM
Subject: Re: XTIDE controller now available
> Jim Leonard wrote:
>> They're being sold at cost: $30 for a kit to solder your own, $40 for a
>> pre-built and tested card.
>
> Is $40 for assembled-by-hand or wave-soldered?
>
> Peace... Sridhar
Hand soldered from reading that thread, not that many boards available from
the looks of it (or parts). I think he recommended you buy the kit so you
don't complain about his soldering skills.
Sooner or later I will probably get one for my Tandy 1000 desktop when I can
figure out how to make a frame for a HD and mount one on the card (like a
hardcard).
For now the MFM drive and card I stuck into my XT clone will work.
From teoz at neo.rr.com Sat Oct 3 02:42:34 2009
From: teoz at neo.rr.com (Teo Zenios)
Date: Sat, 3 Oct 2009 03:42:34 -0400
Subject: 8MM Tape drives
Message-ID: <7B1EE7221F1A4893ACE02A1817060DCD@dell8300>
I hit the local recycler today and purchased a few tapes drives. Snagged a DDS3 external, DDS4 external, and a cool looking IBM drive that I was hoping might have been AIX. Turns out its an 8MM Mammoth 20/40GB drive (looks like ebay #290335147769). The drive had a couple AS/400 stickers on it and appears to be HVD (with terminator attached on the back). Are these drives pretty decent, reliable, and fast? I don't have any experience with them and grabbed it because I like collecting any kind of removable media drive I don't have. Turned it on (fan must be moving quite a bit of air by the sound of it) and the LCD went through diagnostics and then to a ready state with no tape so I assume its not DOA so far. Just curious what you guys think before I go looking for tapes and a cable to connect it to a HVD 68 pin card in my SUN U5. I assume Solaris 8 might know what to do with this thing, or PC backup software will work with it.
From nico at farumdata.dk Sat Oct 3 05:39:29 2009
From: nico at farumdata.dk (Nico de Jong)
Date: Sat, 3 Oct 2009 12:39:29 +0200
Subject: 8MM Tape drives
References: <7B1EE7221F1A4893ACE02A1817060DCD@dell8300>
Message-ID: <74AB2DEC4FBC4CE78D5CDD0467BACDA3@udvikling>
Subject: 8MM Tape drives
I hit the local recycler today and purchased a few tapes drives. Snagged a
DDS3 external, DDS4 external, and a cool looking IBM drive that I was hoping
might have been AIX. Turns out its an 8MM Mammoth 20/40GB drive (looks like
ebay #290335147769). The drive had a couple AS/400 stickers on it and
appears to be HVD (with terminator attached on the back). Are these drives
pretty decent, reliable, and fast? I don't have any experience with them and
grabbed it because I like collecting any kind of removable media drive I
don't have. Turned it on (fan must be moving quite a bit of air by the sound
of it) and the LCD went through diagnostics and then to a ready state with
no tape so I assume its not DOA so far. Just curious what you guys think
before I go looking for tapes and a cable to connect it to a HVD 68 pin card
in my SUN U5. I assume Solaris 8 might know what to do with this thing, or
PC backup software will work with it.
>From my experience in media conversion, I can tell you that Exabyte drives
are very stable indeed. I only use SE drives, but that should not have any
influence on my answer.
4 mm drives (DDS3...) are based on the same experience a PITA. I once had a
drive pulling the tape out of the cassette and wrap it around the motor. the
customer was not very pleased, as it was to be used as evidence in a fraud
case.
Nico
From mbbrutman-cctalk at brutman.com Sat Oct 3 08:56:05 2009
From: mbbrutman-cctalk at brutman.com (Michael B. Brutman)
Date: Sat, 03 Oct 2009 08:56:05 -0500
Subject: XTIDE controller now available
In-Reply-To: <4AC6B336.6010501@oldskool.org>
References: <4AC6B336.6010501@oldskool.org>
Message-ID: <4AC757F5.7020101@brutman.com>
Jim Leonard wrote:
> I wanted to let all of you know that the 2nd revision of my friend's
> PC/XT IDE controller is now available. For those of you not in the
> know, this is a way of using modern IDE hard drives in your 8bit PC or
> XT system. Works with drives up to 137G (your O/S also has to support
> it; 8.4G is way more common) and Compact Flash->IDE controllers too.
> CD-ROM support is likely coming eventually, but he has to write an
> entire driver that MSCDEX would talk to.
>
> They're being sold at cost: $30 for a kit to solder your own, $40 for a
> pre-built and tested card.
>
> These are not quite the end production unit, but darn close. Works in
> PC/XT clones, as well as Tandy 1000 series machines (anyone who knows
> how hard it is to get an IDE drive into a Tandy will appreciate this).
> They are also going to be building one that will fit into a PCjr sidecar
> someday. ;)
>
> Details are available on the last message of this forum page:
> http://www.vintage-computer.com/vcforum/showthread.php?t=12359&page=109
Just to clarify, this is a first run of the second revision cards. They
are limited in supply, and we are probably sending them to people who
did testing with the first round. So most of them will be spoken for.
For the privilege of having an early card, you've got to do some hard
core testing. We have found very few drives that refuse to work, but
they are out there. The BIOS is still being debugged, especially with
the earlier/smaller LBA drives.
I think it's a little early to say they are being sold yet .. I'd check
back on that thread in about two months to see how testing has gone, and
to wait for the next batch of pc boards to be made up. Early samples of
this kit work already so it's not a bad bet, but it's not production
quality yet either.
(I'm intimately involved in this project - I did the trace optimization
for this last batch of cards, and helped with the early design.)
Mike
From jbglaw at lug-owl.de Sat Oct 3 09:31:13 2009
From: jbglaw at lug-owl.de (Jan-Benedict Glaw)
Date: Sat, 3 Oct 2009 16:31:13 +0200
Subject: manx is dead?
In-Reply-To: <4ABE6B39.3070806@bitsavers.org>
References: <4ABE6B39.3070806@bitsavers.org>
Message-ID: <20091003143112.GA10875@lug-owl.de>
On Sat, 2009-09-26 12:27:53 -0700, Al Kossow wrote:
>
> http://vt100.net/manx/
Manx is back for now. And dumps are about to be prepared soon, see
http://hisdeedsaredust.com/2009/09/manx-is-dead/#comments (at the
bottom).
MfG, JBG
--
Jan-Benedict Glaw jbglaw at lug-owl.de +49-172-7608481
Signature of: Lauf nicht vor Deinem Gl?ck davon:
the second : Es k?nnte hinter Dir stehen!
From aek at bitsavers.org Sat Oct 3 09:41:43 2009
From: aek at bitsavers.org (Al Kossow)
Date: Sat, 03 Oct 2009 07:41:43 -0700
Subject: 8MM Tape drives
In-Reply-To: <74AB2DEC4FBC4CE78D5CDD0467BACDA3@udvikling>
References: <7B1EE7221F1A4893ACE02A1817060DCD@dell8300>
<74AB2DEC4FBC4CE78D5CDD0467BACDA3@udvikling>
Message-ID: <4AC762A7.2090507@bitsavers.org>
Nico de Jong wrote:
>> From my experience in media conversion, I can tell you that Exabyte
>> drives are very stable indeed.
8200's are reaching the end of their useful life. Rather than turning to
goo, the pinch rollers crack.
From cclist at sydex.com Sat Oct 3 12:23:08 2009
From: cclist at sydex.com (Chuck Guzis)
Date: Sat, 03 Oct 2009 10:23:08 -0700
Subject: 8MM Tape drives
In-Reply-To: <7B1EE7221F1A4893ACE02A1817060DCD@dell8300>
References: <7B1EE7221F1A4893ACE02A1817060DCD@dell8300>
Message-ID: <4AC7260C.9730.21784C@cclist.sydex.com>
On 3 Oct 2009 at 3:42, Teo Zenios wrote:
> I hit the local recycler today and purchased a few tapes drives.
> Snagged a DDS3 external, DDS4 external, and a cool looking IBM drive
> that I was hoping might have been AIX. Turns out its an 8MM Mammoth
> 20/40GB drive (looks like ebay #290335147769). The drive had a couple
> AS/400 stickers on it and appears to be HVD (with terminator attached
> on the back). Are these drives pretty decent, reliable, and fast?
After having supported a bunch of government customers using various
tape media for about a decade or so, my recommendation usually was:
DLT is better than
8mm is better than
DDS is better than
QIC
(With floppy-tape and Travan included in that last classification).
A big problem with QIC is that cartridges left too long often have
interaction between the (decaying) tension band and the oxide
coating. If the dead tension band doesn't get you, then the chance
that it peeled off a layer of oxide will.
DDS, let's face it, is basically an audio tape standard, with
inexpensive cartridges its key feature. I've got a stack of drives
here of various makes and flavors and have never found it to be
particularly reliable. I put it above QIC because almost all drives
do read-after-write verification.
8mm (Exabyte) is based on the video cartridge, again with cartridge
cost in mind. Because the tape is larger than the 4mm DDS and that a
single manufacturer produced the drives, it tends to be better.
Later drives do better than earlier ones, even on tapes recorded with
earlier drives. For example, if you have a tape recorded on an 8200,
you'll get better results reading it on an 8700, rather than an 8200.
DLT is pretty good--good enough for many manufacturers, including IBM
to brand their drives and put them on their servers. Initially, it
was hugely expensive, but used drives are cheap and the shelf life of
the media is pretty good. In comparison to the preceding categories,
it can be very fast.
FWIW, today I keep my critical short-term backups on USB flash. I
make multiple copies and stash them where the dog won't find them.
Storage conditions matter a lot. I recently took a stack of DC1000
carts I'd recorded back in the 80's (Irwin floppy-tape drive) and
every one read perfectly. My wife was cleaning out the safety
deposit box at our bank last month and came back with a stack of
DC6250 tapes that I had forgotten about. I expect that they'll also
have survived well.
On the other hand, I have a couple of Datasonix Pereos carts that I'm
not even going to bother with. They weren't reliable when they were
new and I don't expect that age has improved them.
Best regards,
Chuck
From nico at farumdata.dk Sat Oct 3 12:35:23 2009
From: nico at farumdata.dk (Nico de Jong)
Date: Sat, 3 Oct 2009 19:35:23 +0200
Subject: 8MM Tape drives
References: <7B1EE7221F1A4893ACE02A1817060DCD@dell8300>
<74AB2DEC4FBC4CE78D5CDD0467BACDA3@udvikling>
<4AC762A7.2090507@bitsavers.org>
Message-ID:
----- Original Message -----
From: "Al Kossow"
To: ;
"Discussion at mxscan01.zitechnet.dk:On-Topic and Off-Topic Posts"
Sent: Saturday, October 03, 2009 4:41 PM
Subject: Re: 8MM Tape drives
> Nico de Jong wrote:
>
>>> From my experience in media conversion, I can tell you that Exabyte
>>> drives are very stable indeed.
>
> 8200's are reaching the end of their useful life. Rather than turning to
> goo, the pinch rollers crack.
>
>
I havnt seen that yet; a 8200 from 1990 is still in occasional service.
Nico
From aliensrcooluk at yahoo.co.uk Sat Oct 3 12:36:15 2009
From: aliensrcooluk at yahoo.co.uk (Andrew Burton)
Date: Sat, 3 Oct 2009 10:36:15 -0700 (PDT)
Subject: =?utf-8?B?UmU6IEJsZXRjaGxleSBQYXJrIGVhcm5zIGZpcnN0IGV2ZXIgbG90dGVyeSBn?=
=?utf-8?B?cmFudCDigKIgVGhlIFJlZ2lzdGVy?=
In-Reply-To: <4AC39148.2040503@sbcglobal.net>
Message-ID: <813428.86721.qm@web23408.mail.ird.yahoo.com>
That's great news. It's just a shame they couldn't even get one picture related to the article and instead the page is covered with advertising :(
Regards,
Andrew B
aliensrcooluk at yahoo.co.uk
--- On Wed, 30/9/09, Dave Woyciesjes wrote:
From: Dave Woyciesjes
Subject: Bletchley Park earns first ever lottery grant ? The Register
To: "ClassicCMP"
Date: Wednesday, 30 September, 2009, 6:11 PM
http://www.theregister.co.uk/2009/09/29/bletchley_park_lottery_grant/
-- --- Dave Woyciesjes
--- ICQ# 905818
--- AIM - woyciesjes
--- CompTIA A+ Certified IT Tech - http://certification.comptia.org/
--- HDI Certified Support Center Analyst - http://www.ThinkHDI.com/
"From there to here,
>From here to there,
Funny things
are everywhere."
--- Dr. Seuss
From nico at farumdata.dk Sat Oct 3 12:39:18 2009
From: nico at farumdata.dk (Nico de Jong)
Date: Sat, 3 Oct 2009 19:39:18 +0200
Subject: 8MM Tape drives
References: <7B1EE7221F1A4893ACE02A1817060DCD@dell8300>
<4AC7260C.9730.21784C@cclist.sydex.com>
Message-ID: <19039DEF5987405A9A443E55A9154FA2@udvikling>
----- Original Message -----
From: "Chuck Guzis"
To: "General Discussion: On-Topic and Off-Topic Posts"
Sent: Saturday, October 03, 2009 7:23 PM
Subject: Re: 8MM Tape drives
> On 3 Oct 2009 at 3:42, Teo Zenios wrote:
>
>> I hit the local recycler today and purchased a few tapes drives.
>> Snagged a DDS3 external, DDS4 external, and a cool looking IBM drive
>> that I was hoping might have been AIX. Turns out its an 8MM Mammoth
>> 20/40GB drive (looks like ebay #290335147769). The drive had a couple
>> AS/400 stickers on it and appears to be HVD (with terminator attached
>> on the back). Are these drives pretty decent, reliable, and fast?
>
> After having supported a bunch of government customers using various
> tape media for about a decade or so, my recommendation usually was:
>
> DLT is better than
> 8mm is better than
> DDS is better than
> QIC
>
> (With floppy-tape and Travan included in that last classification).
I beg to differ.
My list says
- DLT -
- QIC and 8 mm
- 3480/3490
- DDS
- (long pause)
- floppy tape / Travan (QIC-80)
Just the principle of writing a tape through the floppy interface, disgusts
me. Formatting a tape takes a very long time; ISTR about an hour. Must have
been invented by the devil.
Nico
From mcguire at neurotica.com Sat Oct 3 12:46:53 2009
From: mcguire at neurotica.com (Dave McGuire)
Date: Sat, 3 Oct 2009 13:46:53 -0400
Subject: 8MM Tape drives
In-Reply-To: <19039DEF5987405A9A443E55A9154FA2@udvikling>
References: <7B1EE7221F1A4893ACE02A1817060DCD@dell8300>
<4AC7260C.9730.21784C@cclist.sydex.com>
<19039DEF5987405A9A443E55A9154FA2@udvikling>
Message-ID:
On Oct 3, 2009, at 1:39 PM, Nico de Jong wrote:
>> After having supported a bunch of government customers using various
>> tape media for about a decade or so, my recommendation usually was:
>>
>> DLT is better than
>> 8mm is better than
>> DDS is better than
>> QIC
>>
>> (With floppy-tape and Travan included in that last classification).
>
> I beg to differ.
> My list says
> - DLT -
> - QIC and 8 mm
> - 3480/3490
> - DDS
> - (long pause)
> - floppy tape / Travan (QIC-80)
Well, as long as we're doing it, here's my list:
- DLT
- 9-track
- 3480
- QIC-150
....
- 8mm
....
....
....
- 4mm
> Just the principle of writing a tape through the floppy interface,
> disgusts me. Formatting a tape takes a very long time; ISTR about
> an hour. Must have been invented by the devil.
I agree 100%. I've never used those things...recognized it as a
Bad Idea right off the bat and avoided them altogether.
-Dave
--
Dave McGuire
Port Charlotte, FL
From emu at e-bbes.com Sat Oct 3 12:53:00 2009
From: emu at e-bbes.com (e.stiebler)
Date: Sat, 03 Oct 2009 11:53:00 -0600
Subject: 8MM Tape drives
In-Reply-To: <19039DEF5987405A9A443E55A9154FA2@udvikling>
References: <7B1EE7221F1A4893ACE02A1817060DCD@dell8300> <4AC7260C.9730.21784C@cclist.sydex.com>
<19039DEF5987405A9A443E55A9154FA2@udvikling>
Message-ID: <4AC78F7C.6080306@e-bbes.com>
Nico de Jong wrote:
> Just the principle of writing a tape through the floppy interface,
> disgusts me. Formatting a tape takes a very long time; ISTR about an
> hour. Must have been invented by the devil.
No. By somebody who gets paid by the hour ;-)
From cclist at sydex.com Sat Oct 3 13:20:01 2009
From: cclist at sydex.com (Chuck Guzis)
Date: Sat, 03 Oct 2009 11:20:01 -0700
Subject: 8MM Tape drives
In-Reply-To: <19039DEF5987405A9A443E55A9154FA2@udvikling>
References: <7B1EE7221F1A4893ACE02A1817060DCD@dell8300>,
<19039DEF5987405A9A443E55A9154FA2@udvikling>
Message-ID: <4AC73361.31780.558A9E@cclist.sydex.com>
On 3 Oct 2009 at 19:39, Nico de Jong wrote:
> Just the principle of writing a tape through the floppy interface,
> disgusts me. Formatting a tape takes a very long time; ISTR about an
> hour. Must have been invented by the devil.
I suppose where we diverge is on the long-term stability of QIC.
I've seen my share of very old QIC (>20 years) and can't say that I'd
put it as high as you do. 1/2" tape is okay, as long as it isn't one
of those awful brands that shed like crazy.
Aside from 1/2" tape, the oldest reliable storage medium I have is 8"
floppy--and various paper products.
Wasn't floppy tape invented by Cipher? The 525 is about the oldest
floppy tape drive that I know of (still have one sealed in its
original packaging).
So Cipher = Devil? :)
--Chuck
From mcguire at neurotica.com Sat Oct 3 18:53:22 2009
From: mcguire at neurotica.com (Dave McGuire)
Date: Sat, 3 Oct 2009 19:53:22 -0400
Subject: manx is dead?
In-Reply-To: <20091003143112.GA10875@lug-owl.de>
References: <4ABE6B39.3070806@bitsavers.org>
<20091003143112.GA10875@lug-owl.de>
Message-ID: <7F6D0438-8935-4B7E-8B41-4EFB5D1DC7E2@neurotica.com>
On Oct 3, 2009, at 10:31 AM, Jan-Benedict Glaw wrote:
>> http://vt100.net/manx/
>
> Manx is back for now. And dumps are about to be prepared soon, see
> http://hisdeedsaredust.com/2009/09/manx-is-dead/#comments (at the
> bottom).
Whew, this is a huge relief!
>
-Dave
--
Dave McGuire
Port Charlotte, FL
From derschjo at mail.msu.edu Sat Oct 3 20:19:17 2009
From: derschjo at mail.msu.edu (Josh Dersch)
Date: Sat, 03 Oct 2009 18:19:17 -0700
Subject: Help identifying unknown Mac SE accelerator
Message-ID: <4AC7F815.8050106@mail.msu.edu>
Scrounged a Mac SE motherboard+accelerator from a parts bin at RE-PC
this afternoon and I'm trying to figure out what it is. Unfortunately
it looks like a few parts have been scavenged (a crystal oscillator and
a few chips, plus the 68030+FPU) and there's a loose wire on the underside.
I can't find any markings that give away its identity. I have a few
pictures up at http://yahozna.dyndns.org/scratch/mysterymac/. Anyone
have any ideas?
Thanks,
Josh
From rborsuk at colourfull.com Sat Oct 3 21:32:20 2009
From: rborsuk at colourfull.com (Robert Borsuk)
Date: Sat, 3 Oct 2009 22:32:20 -0400
Subject: Help identifying unknown Mac SE accelerator
In-Reply-To: <4AC7F815.8050106@mail.msu.edu>
References: <4AC7F815.8050106@mail.msu.edu>
Message-ID: <2C3B80E8-3802-4249-9D4C-F2B4A9181445@colourfull.com>
On Oct 3, 2009, at 9:19 PM, Josh Dersch wrote:
> Scrounged a Mac SE motherboard+accelerator from a parts bin at RE-PC
> this afternoon and I'm trying to figure out what it is.
> Unfortunately it looks like a few parts have been scavenged (a
> crystal oscillator and a few chips, plus the 68030+FPU) and there's
> a loose wire on the underside.
>
> I can't find any markings that give away its identity. I have a few
> pictures up at http://yahozna.dyndns.org/scratch/mysterymac/.
> Anyone have any ideas?
>
> Thanks,
> Josh
Could be a Novy Systems board. I know they made Mac SE accelerators.
Rob
Rob Borsuk
email: rborsuk at colourfull.com
Colourfull Creations
Web: http://www.colourfull.com
From ploopster at gmail.com Sat Oct 3 21:41:54 2009
From: ploopster at gmail.com (Sridhar Ayengar)
Date: Sat, 03 Oct 2009 22:41:54 -0400
Subject: 8MM Tape drives
In-Reply-To: <74AB2DEC4FBC4CE78D5CDD0467BACDA3@udvikling>
References: <7B1EE7221F1A4893ACE02A1817060DCD@dell8300>
<74AB2DEC4FBC4CE78D5CDD0467BACDA3@udvikling>
Message-ID: <4AC80B72.3020603@gmail.com>
Nico de Jong wrote:
> Subject: 8MM Tape drives
>
>
> I hit the local recycler today and purchased a few tapes drives. Snagged
> a DDS3 external, DDS4 external, and a cool looking IBM drive that I was
> hoping might have been AIX. Turns out its an 8MM Mammoth 20/40GB drive
> (looks like ebay #290335147769). The drive had a couple AS/400 stickers
> on it and appears to be HVD (with terminator attached on the back). Are
> these drives pretty decent, reliable, and fast? I don't have any
> experience with them and grabbed it because I like collecting any kind
> of removable media drive I don't have. Turned it on (fan must be moving
> quite a bit of air by the sound of it) and the LCD went through
> diagnostics and then to a ready state with no tape so I assume its not
> DOA so far. Just curious what you guys think before I go looking for
> tapes and a cable to connect it to a HVD 68 pin card in my SUN U5. I
> assume Solaris 8 might know what to do with this thing, or PC backup
> software will work with it.
The Exabyte Mammoth is a decent drive.
Peace... Sridhar
From ploopster at gmail.com Sat Oct 3 21:50:02 2009
From: ploopster at gmail.com (Sridhar Ayengar)
Date: Sat, 03 Oct 2009 22:50:02 -0400
Subject: 8MM Tape drives
In-Reply-To: <19039DEF5987405A9A443E55A9154FA2@udvikling>
References: <7B1EE7221F1A4893ACE02A1817060DCD@dell8300> <4AC7260C.9730.21784C@cclist.sydex.com>
<19039DEF5987405A9A443E55A9154FA2@udvikling>
Message-ID: <4AC80D5A.30507@gmail.com>
Nico de Jong wrote:
> I beg to differ.
> My list says
> - DLT -
> - QIC and 8 mm
> - 3480/3490
> - DDS
> - (long pause)
> - floppy tape / Travan (QIC-80)
> Just the principle of writing a tape through the floppy interface,
> disgusts me. Formatting a tape takes a very long time; ISTR about an
> hour. Must have been invented by the devil.
I have many hundreds of gig stored on 3480 without problem.
Peace... Sridhar
From ethan.dicks at gmail.com Sat Oct 3 23:39:48 2009
From: ethan.dicks at gmail.com (Ethan Dicks)
Date: Sun, 4 Oct 2009 00:39:48 -0400
Subject: Classic computers endangered!
In-Reply-To: <4AC6EB7F.5080701@gmail.com>
References: <4AC51C23.5080905@snarc.net>
<20091002060322.GA20012@Update.UU.SE> <4AC6EB7F.5080701@gmail.com>
Message-ID:
On Sat, Oct 3, 2009 at 2:13 AM, Sridhar Ayengar wrote:
> Pontus Pihlgren wrote:
>>>
>>> There are 15(-ish) computer museums just in the U.S.A.
>>
>> Not to mention the technical museums that does not focus on computers but
>> have large collections...
>
> Doesn't the National Museum of American History keep a sizeable collection
> too?
There was the last three times I visited the place, admittedly more
than 5 years ago now.
I was amused by the fact that several of the items they chose to
display were also items I happened to own (not the Apple I, though ;-)
ISTR an 18-bit DEC machine - perhaps a PDP-15? - off in a corner after
the first ramp or two.
-ethan
From mnusa2 at hotmail.com Sun Oct 4 07:04:56 2009
From: mnusa2 at hotmail.com (Matti Nummi)
Date: Sun, 4 Oct 2009 15:04:56 +0300
Subject: DEC and HP hardware to go in Europe
Message-ID:
Hi All,
Due to most of my interest in Motorola MVME Unix computers
I have several workstations and misc hardware to go
from eating my space. Fortunatelly there is no deadline.
My location is Helsinki/Finland/Europe.
All at cost of shipping and packaging. Bids are welcome.
If there is enough interest I could make a Central European
drive and deliver door to door but I would like to have some costs covered.
Please email Your interests directly to me:
mnusa2 at hotmail dot com.
I can provide more information and possible pictures if needed.
Everything is within my arm's reach but shifting equipment may take awhile.
General disclaimer: when cost only, no promises, no guarantee, everything as is.
If you pay for it, money back if DOA (excluding shipping costs).
I will ship also to USA but shipping costs will be high.
Decstation 3100 complete
- color monitor
- mouse + keyboard
- cpu + 2 disk boxes + 1 tk50 box + tk50 cleaning kit
- 24 MB RAM
- OSF/1 installed and running
- OSF/1 tapes + images - some read errors though
- full working condition - monitor cable has some problems - looses some colors occasionally
DEC MicroVAX 4000 - 200 in two BA440 cabinets ( I presume)
- Configuration and condition unknown
Several HP 9000/715 workstations - base units only
- some extra RAM available
- most in working condition
- 80s, 50s, 75s
- Some HIL keyboards
- Keyboard/Mouse boxes for 715/80
HP X-stations
- 700s 5-6 pcs
MISC HW (unknown condition, presumed working)
- Decstation 2100 base unit probably with 3100 motherboard
- DEC Storage Expansion box 1
- DEC Storage Expansion box 2
- DEC Storage Expansion box 3
- Decstation 5000/200 base unit
- Decstation 5000/200 base unit
- Decstation 5000/260 base unit
- 2 pcs HP9144
- HP9142
- HP 9000/385
- HP 7959S
- HP 382 Controller - A1474A
Monitors (Unknown condition)
- DEC VRT17HA DEC 17" Color Monitor - not working
- DEC 2E-VR299
- DEC VR320
- HP 98798A
- HP A2094
- SUN GDM-17E10
BR,
Matti
_________________________________________________________________
Windows puhelimella saat enemm?n vastinetta rahoillesi.
http://www.windowsmobile.fi
From nico at farumdata.dk Sun Oct 4 08:10:54 2009
From: nico at farumdata.dk (Nico de Jong)
Date: Sun, 4 Oct 2009 15:10:54 +0200
Subject: 8MM Tape drives
References: <7B1EE7221F1A4893ACE02A1817060DCD@dell8300>,
<19039DEF5987405A9A443E55A9154FA2@udvikling>
<4AC73361.31780.558A9E@cclist.sydex.com>
Message-ID: <3224507DED13485F9E4FC89980D8D6D6@udvikling>
----- Original Message -----
From: "Chuck Guzis"
To: "General Discussion: On-Topic and Off-Topic Posts"
Sent: Saturday, October 03, 2009 8:20 PM
Subject: Re: 8MM Tape drives
> On 3 Oct 2009 at 19:39, Nico de Jong wrote:
>
>> Just the principle of writing a tape through the floppy interface,
>> disgusts me. Formatting a tape takes a very long time; ISTR about an
>> hour. Must have been invented by the devil.
>
> I suppose where we diverge is on the long-term stability of QIC.
> I've seen my share of very old QIC (>20 years) and can't say that I'd
> put it as high as you do. 1/2" tape is okay, as long as it isn't one
> of those awful brands that shed like crazy.
>
> Aside from 1/2" tape, the oldest reliable storage medium I have is 8"
> floppy--and various paper products.
>
> Wasn't floppy tape invented by Cipher? The 525 is about the oldest
> floppy tape drive that I know of (still have one sealed in its
> original packaging).
>
I'm not very much in reading very old stuff, so you can be right on that
point.
1/2" tapes is also one of my favorites, normally. I recently had a job for
the UN, where I had to read some 60-70 tapes originating from west africa.
And they hadn't bee stored correctly. Some of the tapes had mould on them,
and one had mould from the outside and about half an inch inwards (mould on
the "sides" of the tape). Some also stitched, so I had quite a job reading
all of them.
The oldest floppy tape product I've seen, is the MicroSolutions BackPack. I
believe it is from the late 80's. They also had a QIC-80 product. Horrible
system. Don't know about Cipher.
Nico
From legalize at xmission.com Sun Oct 4 10:49:34 2009
From: legalize at xmission.com (Richard)
Date: Sun, 04 Oct 2009 09:49:34 -0600
Subject: manx is dead?
In-Reply-To: Your message of Sat, 03 Oct 2009 16:31:13 +0200.
<20091003143112.GA10875@lug-owl.de>
Message-ID:
In article <20091003143112.GA10875 at lug-owl.de>,
Jan-Benedict Glaw writes:
> On Sat, 2009-09-26 12:27:53 -0700, Al Kossow wrote:
> >
> > http://vt100.net/manx/
>
> Manx is back for now. And dumps are about to be prepared soon, see
> http://hisdeedsaredust.com/2009/09/manx-is-dead/#comments (at the
> bottom).
I suggest that we begin discussions of recreating manx on a server
somewhere, perhaps on Jay's server space he has kindly offered?
Let's make an open source project (github?) for the software that
drives the database so that we can add decentralized editing. I think
one thing that held Paul back was that all edits had to go through him
and were done manually.
--
"The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download
Legalize Adulthood!
From aek at bitsavers.org Sun Oct 4 11:38:38 2009
From: aek at bitsavers.org (Al Kossow)
Date: Sun, 04 Oct 2009 09:38:38 -0700
Subject: DEC and HP hardware to go in Europe
In-Reply-To:
References:
Message-ID: <4AC8CF8E.8000900@bitsavers.org>
Matti Nummi wrote:
> - HP 382 Controller - A1474A
>
I've been playing with one of these for HPIB disk data recovery.
040, Very nice, compact box, HP-HIL, VGA monitor connector. Ethernet
cards seem hard to find (has a DIO slot, though).
http://www.hpmuseum.net/display_item.php?hw=206
From cclist at sydex.com Sun Oct 4 13:20:51 2009
From: cclist at sydex.com (Chuck Guzis)
Date: Sun, 04 Oct 2009 11:20:51 -0700
Subject: 8MM Tape drives
In-Reply-To: <3224507DED13485F9E4FC89980D8D6D6@udvikling>
References: <7B1EE7221F1A4893ACE02A1817060DCD@dell8300>,
<3224507DED13485F9E4FC89980D8D6D6@udvikling>
Message-ID: <4AC88513.27859.57CA8B6@cclist.sydex.com>
On 4 Oct 2009 at 15:10, Nico de Jong wrote:
> The oldest floppy tape product I've seen, is the MicroSolutions
> BackPack. I believe it is from the late 80's. They also had a QIC-80
> product. Horrible system. Don't know about Cipher.
The Cipher 525 documentation on Bitsavers indicates 1984. It came in
two flavors--an SA850 (8") interface and an SA450 (5.25") interface.
The recording medium was DC600A carts. As a lower-cost alternative
to a standard QIC-02 interface drive, it wasn't a horrible
implementation. I think things started going downhill when the
minicart (DC-2000) drives were introduced and efforts to pack ever-
increasing amounts of data on a limited medium were mounted with
questionable success.
--Chuck
From jbglaw at lug-owl.de Sun Oct 4 14:17:30 2009
From: jbglaw at lug-owl.de (Jan-Benedict Glaw)
Date: Sun, 4 Oct 2009 21:17:30 +0200
Subject: manx is dead?
In-Reply-To:
References: <20091003143112.GA10875@lug-owl.de>
Message-ID: <20091004191730.GB10875@lug-owl.de>
On Sun, 2009-10-04 09:49:34 -0600, Richard wrote:
> Jan-Benedict Glaw writes:
> > On Sat, 2009-09-26 12:27:53 -0700, Al Kossow wrote:
> > >
> > > http://vt100.net/manx/
> >
> > Manx is back for now. And dumps are about to be prepared soon, see
> > http://hisdeedsaredust.com/2009/09/manx-is-dead/#comments (at the
> > bottom).
>
> I suggest that we begin discussions of recreating manx on a server
> somewhere, perhaps on Jay's server space he has kindly offered?
Sure, we'd do. I hope to see new DB dumps and will look at those once
they show up. Maybe it's not even all that hard. Some years ago, I've
had a look at software to manage collections, some had specific
support for books. Maybe these are quite mature by now... I'll have
another look at those.
> Let's make an open source project (github?) for the software that
> drives the database so that we can add decentralized editing. I think
> one thing that held Paul back was that all edits had to go through him
> and were done manually.
GIT would be nice. I'd prefer it over everything else :)
MfG, JBG
--
Jan-Benedict Glaw jbglaw at lug-owl.de +49-172-7608481
Signature of: Zensur im Internet? Nein danke!
the second :
From jbglaw at lug-owl.de Sun Oct 4 14:20:46 2009
From: jbglaw at lug-owl.de (Jan-Benedict Glaw)
Date: Sun, 4 Oct 2009 21:20:46 +0200
Subject: manx is dead?
In-Reply-To: <4AC3BBA9.7020204@bitsavers.org>
References: <20090930135030.GO22865@lug-owl.de>
<20090930181407.GR22865@lug-owl.de>
<4AC3BBA9.7020204@bitsavers.org>
Message-ID: <20091004192046.GC10875@lug-owl.de>
On Wed, 2009-09-30 13:12:25 -0700, Al Kossow wrote:
> Jan-Benedict Glaw wrote:
> > They surely could OCR scanned PDFs, but I'm not sure if they
> > will do that.
>
> I can assure you that they HAVE been doing that on bitsavers
> content for over a year. That was one of the reasons I decided
> to start converting the content. People were contacting me wondering
> why the OCRed version wasn't on line.
Maybe the current workflow for creating the PDFs on bitsavers.org
could be a bit better documented? The docs over there only mention the
simple conversion via thumble. It's latest NEWS update is dated
20031209, so quite aged, too. I guess that parts of the workflow are
different these days?
MfG, JBG
--
Jan-Benedict Glaw jbglaw at lug-owl.de +49-172-7608481
Signature of: The real problem with C++ for kernel modules is:
the second : the language just sucks.
-- Linus Torvalds
From hp-fix at xs4all.nl Sun Oct 4 15:05:24 2009
From: hp-fix at xs4all.nl (Rik Bos)
Date: Sun, 4 Oct 2009 22:05:24 +0200
Subject: DEC and HP hardware to go in Europe
In-Reply-To: <4AC8CF8E.8000900@bitsavers.org>
References:
<4AC8CF8E.8000900@bitsavers.org>
Message-ID:
So it works ?
-Rik
> -----Oorspronkelijk bericht-----
> Van: cctalk-bounces at classiccmp.org
> [mailto:cctalk-bounces at classiccmp.org] Namens Al Kossow
> Verzonden: zondag 4 oktober 2009 18:39
> Aan: General Discussion: On-Topic and Off-Topic Posts
> Onderwerp: Re: DEC and HP hardware to go in Europe
>
> Matti Nummi wrote:
>
> > - HP 382 Controller - A1474A
> >
>
> I've been playing with one of these for HPIB disk data recovery.
> 040, Very nice, compact box, HP-HIL, VGA monitor connector.
> Ethernet cards seem hard to find (has a DIO slot, though).
>
> http://www.hpmuseum.net/display_item.php?hw=206
>
>
>
From jbglaw at lug-owl.de Sun Oct 4 15:40:15 2009
From: jbglaw at lug-owl.de (Jan-Benedict Glaw)
Date: Sun, 4 Oct 2009 22:40:15 +0200
Subject: manx is dead?
In-Reply-To: <20091004192046.GC10875@lug-owl.de>
References: <20090930135030.GO22865@lug-owl.de>
<20090930181407.GR22865@lug-owl.de>
<4AC3BBA9.7020204@bitsavers.org>
<20091004192046.GC10875@lug-owl.de>
Message-ID: <20091004204015.GE10875@lug-owl.de>
On Sun, 2009-10-04 21:20:46 +0200, Jan-Benedict Glaw wrote:
> On Wed, 2009-09-30 13:12:25 -0700, Al Kossow wrote:
> > Jan-Benedict Glaw wrote:
> > > They surely could OCR scanned PDFs, but I'm not sure if they
> > > will do that.
> >
> > I can assure you that they HAVE been doing that on bitsavers
> > content for over a year. That was one of the reasons I decided
> > to start converting the content. People were contacting me wondering
> > why the OCRed version wasn't on line.
>
> Maybe the current workflow for creating the PDFs on bitsavers.org
> could be a bit better documented? The docs over there only mention the
> simple conversion via thumble. It's latest NEWS update is dated
> 20031209, so quite aged, too. I guess that parts of the workflow are
> different these days?
To place it into public discussion, my li'l script (used to cut
2side scans from multi-page TIFFs and make a nice PDF book of that)
basically uses `tiffsplit' to create one-page TIFFs, `convert' to
conver to .pbm format, `unpaper' to cut (and straighten) out the two
book pages per TIFF/PBM page, then use `ocroscript rec-tess
--tesslanguage=en ...' to OCR each simgle page and finally use
`HocrConverter.py' [1] to assemble single-page straightened TIFF pages
and the HOCR scan results to a PDF.
All parts of that software stack is in Debian, except the Hocr stuff
(for scanning the pages and generate a file that also contains the
position of scanned text on the page).
MfG, JBG
[1] http://xplus3.net/downloads/HocrConverter.gz, linked from
http://xplus3.net/2009/04/02/convert-hocr-to-pdf/
--
Jan-Benedict Glaw jbglaw at lug-owl.de +49-172-7608481
Signature of: 23:53 <@jbglaw> So, ich kletter' jetzt mal ins Bett.
the second : 23:57 <@jever2> .oO( kletter ..., hat er noch Gitter vorm Bett, wie fr?her meine Kinder?)
00:00 <@jbglaw> jever2: *patsch*
00:01 <@jever2> *aua*, wof?r, Gedanken sind frei!
00:02 <@jbglaw> Nee, freie Gedanken, die sind seit 1984 doch aus!
00:03 <@jever2> 1984? ich bin erst seit 1985 verheiratet!
From c.murray.mccullough at gmail.com Fri Oct 2 17:34:30 2009
From: c.murray.mccullough at gmail.com (Murray McCullough)
Date: Fri, 2 Oct 2009 18:34:30 -0400
Subject: Message from C. Corti - Classic computers endangered!
Message-ID:
Message: 7
Date: Fri, 2 Oct 2009 11:00:53 +0200 (CEST)
From: Christian Corti
Subject: Re: Classic computers endangered!
To: "General Discussion: On-Topic and Off-Topic Posts"
Message-ID:
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed
On Thu, 1 Oct 2009, Richard wrote:
> Well, this part is just plain uninfomed:
>
> "Science museums around the world have long collected computing
> kit. But there are only three institutions actively growing
> collections of outdated computers and restoring them to working
> order: the UK's National Museum of Computing (NMOC) at Bletchley
> Park; the Computer History Museum in Silicon Valley; and the Heinz
> Nixdorf MuseumsForum (HNF) in Padaborn, Germany."
>
> Only three? I can name a half-dozen more off the top of my head
> without even googling.
And at least the HNF does not restore/run their machines, they don't even
display them in a logical manner (and it's Paderborn, not Padaborn ;-))
OTOH our little museum has been collecting/restoring etc. for much
over ten years now. And of course, almost everything on display is
functional (people don't want to see dead junk, they are much more
impressed by a demonstration).
Christian
There are 'many' private and public museums that not only preserve but keep
working vintage computers in their collections. Two important ones come to
mind:: 1) The First Computer Museum of Nova Scotia. It has Kenbaks which
some consider to be the first microcomputer. 2) The Digibarn Computer
Museumlocated a shoet distance outside Silicon Valley. Not only does
this museum
have an excellent collection of vintage machines but has an excellent web
site to boot.
There are some interested in vintage computers just as some are
interested in vintage cars. The numbers are really not that large, in either
domain, as far as this observer can determine. Yet we should do all we can
to preserve old computing technology. History will thank us!
Murray
From apw at adrianwise.co.uk Sat Oct 3 02:31:18 2009
From: apw at adrianwise.co.uk (Adrian Wise)
Date: Sat, 03 Oct 2009 08:31:18 +0100
Subject: IMP system software
In-Reply-To: <4AC5EE96.50201@hachti.de>
References: <76E77758-DF45-48E5-A376-DF4EABAA75D8@loomcom.com> (sfid-20090930_142507_081247_3810518B) <4AC4F96C.30004@heeltoe.com> <4887868A-86FE-4250-8C77-B13A63EF9197@loomcom.com> <4AC510E3.6080802@adrianwise.co.uk>
<4AC5EE96.50201@hachti.de>
Message-ID: <4AC6FDC6.2030803@adrianwise.co.uk>
Hi Philip
Old age must be creeping up on me since I clearly don't recall
correctly! The H316 is 1.6us as you say.
Adrian
Philipp Hachtmann wrote:
>
> Adrian Wise wrote:
>> The 516 and the 316 are 100% code compatible.
> Just wanted to write that...
>
>> Just the cycle time differs (0.96us for the 516, 1.3us for the 316 IIRC)
> Have you tuned up your H316? My machine is running on 1.6us! In that
> case I would be glad to get your CPU and memory timing configuration :-)
>
> (Otherwise it would be an interesting experiment to see if and how much
> faster a H316 could be made. I'm quite confident that Honeywell/3C
> delivered the machines in a very stable configuration with big reserves
> with respect to reliability)
>
> Best wishes,
>
> Philipp :-)
>
From chrism3667 at yahoo.com Sat Oct 3 13:52:55 2009
From: chrism3667 at yahoo.com (Chris M)
Date: Sat, 3 Oct 2009 11:52:55 -0700 (PDT)
Subject: XTIDE controller now available
In-Reply-To: <4AC6B336.6010501@oldskool.org>
Message-ID: <784469.45411.qm@web65508.mail.ac4.yahoo.com>
is it asking too much to provide a list of the ic's this board takes? No problem w/soldering in sockets, thereby alleviating the possibility of scorching any chips?
I definitely want one. Keep losing my old Acculogic card.
--- On Fri, 10/2/09, Jim Leonard wrote:
> From: Jim Leonard
> Subject: XTIDE controller now available
> To: General at mail.mobygames.com, "On-Topic and Off-Topic Posts"
> Date: Friday, October 2, 2009, 10:13 PM
> I wanted to let all of you know that
> the 2nd revision of my friend's PC/XT IDE controller is now
> available. For those of you not in the know, this is a
> way of using modern IDE hard drives in your 8bit PC or XT
> system. Works with drives up to 137G (your O/S also
> has to support it; 8.4G is way more common) and Compact
> Flash->IDE controllers too. CD-ROM support is likely
> coming eventually, but he has to write an entire driver that
> MSCDEX would talk to.
>
> They're being sold at cost: $30 for a kit to solder your
> own, $40 for a pre-built and tested card.
>
> These are not quite the end production unit, but darn
> close. Works in
> PC/XT clones, as well as Tandy 1000 series machines (anyone
> who knows how hard it is to get an IDE drive into a Tandy
> will appreciate this). They are also going to be building
> one that will fit into a PCjr sidecar someday. ;)
>
> Details are available on the last message of this forum
> page: http://www.vintage-computer.com/vcforum/showthread.php?t=12359&page=109
> -- Jim Leonard (trixter at oldskool.org)
> http://www.oldskool.org/
> Help our electronic games project:
> http://www.mobygames.com/
> Or check out some trippy MindCandy at
> http://www.mindcandydvd.com/
> A child borne of the home computer wars: http://trixter.wordpress.com/
>
__________________________________________________
Do You Yahoo!?
Tired of spam? Yahoo! Mail has the best spam protection around
http://mail.yahoo.com
From jws at jwsss.com Sat Oct 3 16:44:39 2009
From: jws at jwsss.com (jim s)
Date: Sat, 03 Oct 2009 14:44:39 -0700
Subject: 8MM Tape drives
In-Reply-To: <4AC73361.31780.558A9E@cclist.sydex.com>
References: <7B1EE7221F1A4893ACE02A1817060DCD@dell8300>,
<19039DEF5987405A9A443E55A9154FA2@udvikling>
<4AC73361.31780.558A9E@cclist.sydex.com>
Message-ID: <4AC7C5C7.7020503@jwsss.com>
For me, the devices are all failing much earlier than the media. Thanks
to some help, my 1/2" media is still readable from 1972 thru 1990.
Drives all have developed major servo problems, and sensor problems.
I'm not very good at fixing such, so have moved all of the data off that
media.
Amazingly I had a pile of 8mm tapes and around 1999 or 2000 I decided to
read them, and figured I'd have moderate to low success. The only tape
out of about 30 that didn't read was one I had marked "partial tape
error at end" and saved when I was doing a data recovery, and partial
saves might have proven useful.
The 8mm sample is only with 5 to 10gb tapes maximum, no experience with
higher ones for archival.
Agree comment on floppy tape, never bought it, as I always was able to
maintain access to 1/2" till I quit using tape and went to online
conservation and cd / dvd maintainence of data.
Jim
Chuck Guzis wrote:
> On 3 Oct 2009 at 19:39, Nico de Jong wrote:
>
>
>> Just the principle of writing a tape through the floppy interface,
>> disgusts me. Formatting a tape takes a very long time; ISTR about an
>> hour. Must have been invented by the devil.
>>
>
> I suppose where we diverge is on the long-term stability of QIC.
> I've seen my share of very old QIC (>20 years) and can't say that I'd
> put it as high as you do. 1/2" tape is okay, as long as it isn't one
> of those awful brands that shed like crazy.
>
> Aside from 1/2" tape, the oldest reliable storage medium I have is 8"
> floppy--and various paper products.
>
> Wasn't floppy tape invented by Cipher? The 525 is about the oldest
> floppy tape drive that I know of (still have one sealed in its
> original packaging).
>
> So Cipher = Devil? :)
>
> --Chuck
>
>
>
From aek at bitsavers.org Sun Oct 4 18:34:56 2009
From: aek at bitsavers.org (Al Kossow)
Date: Sun, 04 Oct 2009 16:34:56 -0700
Subject: manx is dead?
In-Reply-To: <20091004192046.GC10875@lug-owl.de>
References: <20090930135030.GO22865@lug-owl.de> <20090930181407.GR22865@lug-owl.de> <4AC3BBA9.7020204@bitsavers.org>
<20091004192046.GC10875@lug-owl.de>
Message-ID: <4AC93120.2040901@bitsavers.org>
Jan-Benedict Glaw wrote:
> Maybe the current workflow for creating the PDFs on bitsavers.org
> could be a bit better documented?
The main addition was making an OCR pass over the tumble output with
Acrobat Pro.
From aek at bitsavers.org Sun Oct 4 18:35:38 2009
From: aek at bitsavers.org (Al Kossow)
Date: Sun, 04 Oct 2009 16:35:38 -0700
Subject: DEC and HP hardware to go in Europe
In-Reply-To:
References: <4AC8CF8E.8000900@bitsavers.org>
Message-ID: <4AC9314A.2050506@bitsavers.org>
Rik Bos wrote:
> So it works ?
>
yes, chugging along happily with 9.10
From useddec at gmail.com Sun Oct 4 19:14:31 2009
From: useddec at gmail.com (Paul Anderson)
Date: Sun, 4 Oct 2009 19:14:31 -0500
Subject: PDP 14
In-Reply-To: <4AC678D6.8000101@nktelco.net>
References:
<4AC678D6.8000101@nktelco.net>
Message-ID: <624966d60910041714q3a43893bn8c6f80aa2f69c5b9@mail.gmail.com>
I worked on one or two in the field back in the '70's, but don't remember
very much about system configurations. I don't remmember anything about the
main box.
I have a VT14 terminal, 14/30's, 14/35's, ICR11, ICR8, ICS11, ICS8, some in
quantity. I also have a large quantity of H1600's, H1500's, H1550's, H1650's
and their corresponding distributuion panels. I'm taking these numbers from
memory so the numbers might be a little off and this list is by no means
complete. The documentation for most items is here and I offered it to Al
to scan a few years ago, but he has probably forgoten about it now.
If anyone has working knowledge of this equipment, please feel free to
contact me.
On Fri, Oct 2, 2009 at 5:04 PM, Charles H Dickman wrote:
> I have never seen one alive, but I have the remains of one: logic unit
> boards, miscellaneous generic flip-chips, some I/O boards, etc.
> Unfortunately, no backplane. This was the original PDP-14 (Straight-14?). It
> was to have a core-rope ROM in the final installation vs. core. I think
> there were later versions that had writable program storage.
>
> Shoppa, Tim wrote:
>
>> The PDP-14 was not a conventional computer... it was what we call today a
>> PLC
>>
>> (programmable logic controller). Very adaptable to ladder logic and a bit
>> more.
>>
>>
> Very primitive, but the right thing for discrete logic control.
>
> I have some notes about it here: http://www.chdickman.com/pdp14/
>
> I think Motorola had a 16pin dip logic unit that did basically the same
> thing.
>
>> DEC was pretty swift in how they allowed the PDP-14 to be configured via a
>> real computer (a -11 or -8). It wasn't the GUI of PLC configuration today or
>> even of the 80's, but it was a good start.
>>
>>
> The parts I have came from a system that was to have run a stamping press.
> In this case, the PDP-14 was basically a discrete I/O adapter for a PDP-8/e.
>
>
>> The overall model of PLC configured or monitored by a computer still holds
>> true today, I think that DEC could have really taken this idea and run with
>> it but the overlap between industrial control and computers even today is
>> less than thorough. The computer geeks don't understand the industrial
>> control and process engineers for the most part (thus the common misuse of
>> Windows PC's where a PLC could do the job far better and without
>> point-and-drool.)
>>
>>
> PLCs to control the process and PCs to monitor the process. I don't know
> that I want Vista in charge. It might be only a tool, but that tool might be
> very expensive.
>
>> IMHO if you are interested in PDP-14 you must also be interested in early
>> Modicon PLC's, which were far more common, predate the PDP-14, used core
>> memory like the PDP-14, and which the PDP-14 was pretty much a clone of. I
>> think Modicon was also a Massachusets company like DEC.
>>
>>
> The cool thing about MODICON is that a simple protocol that they devised
> has been widely implemented. It has become a least common denominator
> language for communication between devices and controllers.
>
> -chuck
>
>
>
>
>
>
>
>
From snhirsch at gmail.com Sun Oct 4 19:47:46 2009
From: snhirsch at gmail.com (Steven Hirsch)
Date: Sun, 4 Oct 2009 20:47:46 -0400 (EDT)
Subject: XTIDE controller now available
In-Reply-To: <4AC6B336.6010501@oldskool.org>
References: <4AC6B336.6010501@oldskool.org>
Message-ID:
On Fri, 2 Oct 2009, Jim Leonard wrote:
> I wanted to let all of you know that the 2nd revision of my friend's PC/XT
> IDE controller is now available. For those of you not in the know, this is a
> way of using modern IDE hard drives in your 8bit PC or XT system. Works with
> drives up to 137G (your O/S also has to support it; 8.4G is way more common)
> and Compact Flash->IDE controllers too. CD-ROM support is likely coming
> eventually, but he has to write an entire driver that MSCDEX would talk to.
What am I not understanding about the need for this product? I have about
a half-dozen 8-bit ISA IDE controllers, mostly Seagate branded. Didn't
think they were particularly rare.
Steve
--
From jbglaw at lug-owl.de Mon Oct 5 02:56:18 2009
From: jbglaw at lug-owl.de (Jan-Benedict Glaw)
Date: Mon, 5 Oct 2009 09:56:18 +0200
Subject: manx is dead?
In-Reply-To: <4AC93120.2040901@bitsavers.org>
References: <20090930135030.GO22865@lug-owl.de>
<20090930181407.GR22865@lug-owl.de>
<4AC3BBA9.7020204@bitsavers.org>
<20091004192046.GC10875@lug-owl.de>
<4AC93120.2040901@bitsavers.org>
Message-ID: <20091005075617.GF10875@lug-owl.de>
On Sun, 2009-10-04 16:34:56 -0700, Al Kossow wrote:
> Jan-Benedict Glaw wrote:
> > Maybe the current workflow for creating the PDFs on bitsavers.org
> > could be a bit better documented?
>
> The main addition was making an OCR pass over the tumble output with
> Acrobat Pro.
Oh, so it's a manual step. Based on good scans, I tried to have a
stack that could be run unatended, without manual intervention.
MfG, JBG
--
Jan-Benedict Glaw jbglaw at lug-owl.de +49-172-7608481
Signature of: The course of history shows that as a government grows, liberty
the second : decreases." (Thomas Jefferson)
From aek at bitsavers.org Mon Oct 5 03:05:52 2009
From: aek at bitsavers.org (Al Kossow)
Date: Mon, 05 Oct 2009 01:05:52 -0700
Subject: PDP 14
In-Reply-To: <624966d60910041714q3a43893bn8c6f80aa2f69c5b9@mail.gmail.com>
References: <4AC678D6.8000101@nktelco.net>
<624966d60910041714q3a43893bn8c6f80aa2f69c5b9@mail.gmail.com>
Message-ID: <4AC9A8E0.3050106@bitsavers.org>
Paul Anderson wrote:
> I worked on one or two in the field back in the '70's, but don't remember
> very much about system configurations. I don't remmember anything about the
> main box.
>
> I have a VT14 terminal, 14/30's, 14/35's, ICR11, ICR8, ICS11, ICS8, some in
> quantity. I also have a large quantity of H1600's, H1500's, H1550's, H1650's
> and their corresponding distributuion panels. I'm taking these numbers from
> memory so the numbers might be a little off and this list is by no means
> complete. The documentation for most items is here and I offered it to Al
> to scan a few years ago, but he has probably forgoten about it now.
>
yup.. I dug up some information out of the DEC archive at CHM which I put up
on bitsavers.
> If anyone has working knowledge of this equipment, please feel free to
> contact me.
>
The company I worked for supported 14/30's in the Pabst brewhouse. The main
box was downloaded from a high speed serial link from the VT14. It was possible
to do ladder-logic development under OS/8 with some software my boss wrote.
Internally, the 14/30 was built like an 8/E, even used the 8's memory assy.
From aek at bitsavers.org Mon Oct 5 03:09:13 2009
From: aek at bitsavers.org (Al Kossow)
Date: Mon, 05 Oct 2009 01:09:13 -0700
Subject: manx is dead?
In-Reply-To: <20091005075617.GF10875@lug-owl.de>
References: <20090930135030.GO22865@lug-owl.de> <20090930181407.GR22865@lug-owl.de> <4AC3BBA9.7020204@bitsavers.org> <20091004192046.GC10875@lug-owl.de> <4AC93120.2040901@bitsavers.org>
<20091005075617.GF10875@lug-owl.de>
Message-ID: <4AC9A9A9.8010007@bitsavers.org>
Jan-Benedict Glaw wrote:
> Based on good scans, I tried to have a
> stack that could be run unatended, without manual intervention.
>
Acrobat will batch input, that's how i'm dealing with bitsavers.
I point it at a local copy of a couple of directories, and go
away for a few days. I'm just finishing univac, so I'll switch
to the new things to upload for a day or two.
From hachti at hachti.de Mon Oct 5 05:15:08 2009
From: hachti at hachti.de (Philipp Hachtmann)
Date: Mon, 05 Oct 2009 12:15:08 +0200
Subject: RK11-D controller spares available?
Message-ID: <4AC9C72C.9000207@hachti.de>
Hi folks,
does anybody have a spare M7256 board for the RK11-D controller?
And/or a backplane for it?
If I find both, I'll have a complete controller...
Best wishes,
Philipp
--
http://www.hachti.de
From afra at aurigae.demon.co.uk Mon Oct 5 05:25:08 2009
From: afra at aurigae.demon.co.uk (afra at aurigae.demon.co.uk)
Date: Mon, 05 Oct 2009 11:25:08 +0100
Subject: XTIDE controller now available
In-Reply-To:
References: <4AC6B336.6010501@oldskool.org>
Message-ID: <20091005112508.15865qlsefvcls3k@aurigae.demon.co.uk>
Quoting Steven Hirsch :
> On Fri, 2 Oct 2009, Jim Leonard wrote:
>
>> I wanted to let all of you know that the 2nd revision of my
>> friend's PC/XT IDE controller is now available. For those of you
>> not in the know, this is a way of using modern IDE hard drives in
>> your 8bit PC or XT system. Works with drives up to 137G (your O/S
>> also has to support it; 8.4G is way more common) and Compact
>> Flash->IDE controllers too. CD-ROM support is likely coming
>> eventually, but he has to write an entire driver that MSCDEX would
>> talk to.
>
> What am I not understanding about the need for this product? I have
> about a half-dozen 8-bit ISA IDE controllers, mostly Seagate
> branded. Didn't think they were particularly rare.
Humm, odd I've only ever seen one in the flesh, it is my perception
that they are reasonably uncommon, at least here in the UK.
Also I guess that older cards will only support drives up to 520Mb
using CHS type geometry ? And also possibly would be limited to drives
that will work in 8 bit XTA?? mode. Whereas the XTIDE has a bios that
supports LBA drives, up to 137G, mind for an XT I can't see that you'd
ever need a drive that big :)
Though asuming that the hardware on the Seagate cards was up to doing
16 bit I/O, there's no reason why the XTIDE bios couldn't be ported to
that hardware.
The other thing is this is a completely open source project, the
schematic, the bios, eveything. So whilst I don't have one of the
pre-made boards, I was able to bash the schematic into Eagle, layout a
board, and build my own, which does indeed work, may be a good way of
getting some more capacity on my 5150 and 5160 :) I'll also try it in
my Sinclair PC200 (also known as the Amstrad PC-20).
Since my controler is logically the same as the above, do you want me
to make reports of anything that does/does not work ?
Now what we really need is an MCA IDE controler........that might be a
little harder, did IBM ever release the documentation for MCA or do
they still want $$$$ fo a license. I've only ever seen one other
brand of machines that use MCA (made by Research Machines).
Cheers.
Phill.
----------------------------------------------------------------
This message was sent using IMP, the Internet Messaging Program.
From dseagrav at lunar-tokyo.net Mon Oct 5 07:45:58 2009
From: dseagrav at lunar-tokyo.net (Daniel Seagraves)
Date: Mon, 5 Oct 2009 07:45:58 -0500
Subject: IMP system software
In-Reply-To: <4AC6FDC6.2030803@adrianwise.co.uk>
References: <76E77758-DF45-48E5-A376-DF4EABAA75D8@loomcom.com> (sfid-20090930_142507_081247_3810518B) <4AC4F96C.30004@heeltoe.com> <4887868A-86FE-4250-8C77-B13A63EF9197@loomcom.com> <4AC510E3.6080802@adrianwise.co.uk>
<4AC5EE96.50201@hachti.de> <4AC6FDC6.2030803@adrianwise.co.uk>
Message-ID:
Hey, is the IMP software also what was used to make a TIP or a TAC, or
were those different?
On Oct 3, 2009, at 2:31 AM, Adrian Wise wrote:
> Hi Philip
>
> Old age must be creeping up on me since I clearly don't recall
> correctly! The H316 is 1.6us as you say.
>
> Adrian
>
> Philipp Hachtmann wrote:
>> Adrian Wise wrote:
>>> The 516 and the 316 are 100% code compatible.
>> Just wanted to write that...
>>> Just the cycle time differs (0.96us for the 516, 1.3us for the 316
>>> IIRC)
>> Have you tuned up your H316? My machine is running on 1.6us! In that
>> case I would be glad to get your CPU and memory timing configuration
>> :-)
>> (Otherwise it would be an interesting experiment to see if and how
>> much faster a H316 could be made. I'm quite confident that
>> Honeywell/3C delivered the machines in a very stable configuration
>> with big reserves with respect to reliability)
>> Best wishes,
>> Philipp :-)
From mbbrutman-cctalk at brutman.com Mon Oct 5 07:47:38 2009
From: mbbrutman-cctalk at brutman.com (Michael B. Brutman)
Date: Mon, 05 Oct 2009 07:47:38 -0500
Subject: XTIDE controller now available
In-Reply-To:
References: <4AC6B336.6010501@oldskool.org>
Message-ID: <4AC9EAEA.2030006@brutman.com>
Steven Hirsch wrote:
> On Fri, 2 Oct 2009, Jim Leonard wrote:
>
>> I wanted to let all of you know that the 2nd revision of my friend's
>> PC/XT IDE controller is now available. For those of you not in the
>> know, this is a way of using modern IDE hard drives in your 8bit PC or
>> XT system. Works with drives up to 137G (your O/S also has to support
>> it; 8.4G is way more common) and Compact Flash->IDE controllers too.
>> CD-ROM support is likely coming eventually, but he has to write an
>> entire driver that MSCDEX would talk to.
>
> What am I not understanding about the need for this product? I have
> about a half-dozen 8-bit ISA IDE controllers, mostly Seagate branded.
> Didn't think they were particularly rare.
>
> Steve
>
>
Funny, but now I know why the rest of us can't find them - you have a
personal stockpile! Most of us can't find them on eBay or other places.
This one has a BIOS that supports LBA mode drives. It was pretty funny
seeing DOS 7 boot on a PC XT 5160. The BIOS is also flashable, which is
a nice feature. (And we expect the source code to be openly available.)
There will be announcements and pointers to a proper page/site when
these things are more production ready.
Mike
From afra at aurigae.demon.co.uk Mon Oct 5 08:06:04 2009
From: afra at aurigae.demon.co.uk (afra at aurigae.demon.co.uk)
Date: Mon, 05 Oct 2009 14:06:04 +0100
Subject: XTIDE controller now available
In-Reply-To: <4AC9EAEA.2030006@brutman.com>
References: <4AC6B336.6010501@oldskool.org>
<4AC9EAEA.2030006@brutman.com>
Message-ID: <20091005140604.87352kpfw48q8a4g@aurigae.demon.co.uk>
Quoting "Michael B. Brutman" :
> This one has a BIOS that supports LBA mode drives. It was pretty
> funny seeing DOS 7 boot on a PC XT 5160.
Is that Dos 7 as in Win 9x dos ? or as in PC-DOS 7 ?
If the former, odd that it doesn't have any 386 instructions in there
as 9x of course required a 386 or above.
Guess if you used OpenDos (or Win98 dos 7), you can use Fat32 and have
> 2G partitions....will try that tonight.....
Phill.
----------------------------------------------------------------
This message was sent using IMP, the Internet Messaging Program.
From pat at computer-refuge.org Mon Oct 5 09:26:36 2009
From: pat at computer-refuge.org (Patrick Finnegan)
Date: Mon, 5 Oct 2009 10:26:36 -0400
Subject: XTIDE controller now available
In-Reply-To: <20091005112508.15865qlsefvcls3k@aurigae.demon.co.uk>
References: <4AC6B336.6010501@oldskool.org>
<20091005112508.15865qlsefvcls3k@aurigae.demon.co.uk>
Message-ID: <200910051026.37046.pat@computer-refuge.org>
On Monday 05 October 2009, afra at aurigae.demon.co.uk wrote:
> Now what we really need is an MCA IDE controler........that might be
> a little harder, did IBM ever release the documentation for MCA or
> do they still want $$$$ fo a license. I've only ever seen one other
> brand of machines that use MCA (made by Research Machines).
NCR also made Microchannel machines, including some quite large ones
(Worldmark 5100, which at some point I had a couple of).
Pat
--
Purdue University Research Computing --- http://www.rcac.purdue.edu/
The Computer Refuge --- http://computer-refuge.org
From ploopster at gmail.com Mon Oct 5 09:42:21 2009
From: ploopster at gmail.com (Sridhar Ayengar)
Date: Mon, 05 Oct 2009 10:42:21 -0400
Subject: XTIDE controller now available
In-Reply-To: <200910051026.37046.pat@computer-refuge.org>
References: <4AC6B336.6010501@oldskool.org> <20091005112508.15865qlsefvcls3k@aurigae.demon.co.uk>
<200910051026.37046.pat@computer-refuge.org>
Message-ID: <4ACA05CD.4080600@gmail.com>
Patrick Finnegan wrote:
> On Monday 05 October 2009, afra at aurigae.demon.co.uk wrote:
>> Now what we really need is an MCA IDE controler........that might be
>> a little harder, did IBM ever release the documentation for MCA or
>> do they still want $$$$ fo a license. I've only ever seen one other
>> brand of machines that use MCA (made by Research Machines).
>
> NCR also made Microchannel machines, including some quite large ones
> (Worldmark 5100, which at some point I had a couple of).
Tandy had the 4000MC too.
Peace... Sridhar
From useddec at gmail.com Mon Oct 5 09:48:51 2009
From: useddec at gmail.com (Paul Anderson)
Date: Mon, 5 Oct 2009 09:48:51 -0500
Subject: RK11-D controller spares available?
In-Reply-To: <4AC9C72C.9000207@hachti.de>
References: <4AC9C72C.9000207@hachti.de>
Message-ID: <624966d60910050748k2461a324k7536010400fe890c@mail.gmail.com>
I have the board, but will have to check on the backplane,
Paul
On Mon, Oct 5, 2009 at 5:15 AM, Philipp Hachtmann wrote:
> Hi folks,
>
> does anybody have a spare M7256 board for the RK11-D controller?
> And/or a backplane for it?
>
> If I find both, I'll have a complete controller...
>
> Best wishes,
>
> Philipp
>
> --
> http://www.hachti.de
>
From ethan.dicks at gmail.com Mon Oct 5 10:00:03 2009
From: ethan.dicks at gmail.com (Ethan Dicks)
Date: Mon, 5 Oct 2009 11:00:03 -0400
Subject: XTIDE controller now available
In-Reply-To: <200910051026.37046.pat@computer-refuge.org>
References: <4AC6B336.6010501@oldskool.org>
<20091005112508.15865qlsefvcls3k@aurigae.demon.co.uk>
<200910051026.37046.pat@computer-refuge.org>
Message-ID:
On Mon, Oct 5, 2009 at 10:26 AM, Patrick Finnegan
wrote:
> On Monday 05 October 2009, afra at aurigae.demon.co.uk wrote:
>> Now what we really need is an MCA IDE controler........that might be
>> ?a little harder, did IBM ever release the documentation for MCA or
>> ?do they still want $$$$ fo a ?license. I've only ever seen one other
>> ?brand of machines that use MCA (made by Research Machines).
>
> NCR also made Microchannel machines, including some quite large ones
> (Worldmark 5100, which at some point I had a couple of).
I worked with some large NCR MCA machines in the late 1990s when I was
at Lucent. Imagine a machine larger than a VAX 11/750 with four
Pentium-90 processors, multiple MCA buses and many SCSI cards on those
MCA buses and many, many disks... the scary part was it was still so
PC-compatible that it could still boot DOS and run Doom.
-ethan
From cclist at sydex.com Mon Oct 5 11:04:19 2009
From: cclist at sydex.com (Chuck Guzis)
Date: Mon, 05 Oct 2009 09:04:19 -0700
Subject: XTIDE controller now available
In-Reply-To:
References: <4AC6B336.6010501@oldskool.org>,
Message-ID: <4AC9B693.21667.A2607B4@cclist.sydex.com>
On 4 Oct 2009 at 20:47, Steven Hirsch wrote:
> What am I not understanding about the need for this product? I have
> about a half-dozen 8-bit ISA IDE controllers, mostly Seagate branded.
> Didn't think they were particularly rare.
The overwhelming majority of those old 8-bit IDE controllers worked
with XTIDE drives, which supported 8-bit data transfers.
Unfortunately, even though the ATA standard kept the 8-bit transfer
as an option for quite some time, no vendor supported it. Any IDE
drive over about 100MB is likely to support only 16-bit transfers.
As I understand the subject controller project, it latches the upper
8 bits of a 16-bit data transfer and makes it available in a
subsequent cycle.
However, one can use a CF memory card in an 8-bit IDE application, as
I understand that all CF cards support the 8-bit mode of ATA.
--Chuck
From n0body.h0me at inbox.com Mon Oct 5 11:10:06 2009
From: n0body.h0me at inbox.com (N0body H0me)
Date: Mon, 5 Oct 2009 08:10:06 -0800
Subject: DEC and HP hardware to go in Europe
In-Reply-To: <4AC9314A.2050506@bitsavers.org>
References: <4ac8cf8e.8000900@bitsavers.org>
Message-ID: <3AA626F2DBE.000003F9n0body.h0me@inbox.com>
> -----Original Message-----
> From: aek at bitsavers.org
> Sent: Sun, 04 Oct 2009 16:35:38 -0700
> To:
> Subject: Re: DEC and HP hardware to go in Europe
>
> Rik Bos wrote:
>> So it works ?
>>
>
> yes, chugging along happily with 9.10
Was 9.10 the last 680x0 version of HP/UX, or
were there later ones? Do you have install media?
From aek at bitsavers.org Mon Oct 5 12:01:37 2009
From: aek at bitsavers.org (Al Kossow)
Date: Mon, 05 Oct 2009 10:01:37 -0700
Subject: DEC and HP hardware to go in Europe
In-Reply-To: <3AA626F2DBE.000003F9n0body.h0me@inbox.com>
References: <4ac8cf8e.8000900@bitsavers.org>
<3AA626F2DBE.000003F9n0body.h0me@inbox.com>
Message-ID: <4ACA2671.4070602@bitsavers.org>
N0body H0me wrote:
>
>> -----Original Message-----
>> From: aek at bitsavers.org
>> Sent: Sun, 04 Oct 2009 16:35:38 -0700
>> To:
>> Subject: Re: DEC and HP hardware to go in Europe
>>
>> Rik Bos wrote:
>>> So it works ?
>>>
>> yes, chugging along happily with 9.10
>
> Was 9.10 the last 680x0 version of HP/UX, or
> were there later ones?
9.10 was the last release. There are some y2k issues
which were addressed by a set of patches.
http://www.tamsinc.com/hpux/support/Y2KPatch.htm
From hp-fix at xs4all.nl Mon Oct 5 12:07:27 2009
From: hp-fix at xs4all.nl (Rik Bos)
Date: Mon, 5 Oct 2009 19:07:27 +0200
Subject: DEC and HP hardware to go in Europe
In-Reply-To: <3AA626F2DBE.000003F9n0body.h0me@inbox.com>
References: <4ac8cf8e.8000900@bitsavers.org>
<3AA626F2DBE.000003F9n0body.h0me@inbox.com>
Message-ID: <02118665D76C4CB6B1BA373EE3851852@xp1800>
> -----Oorspronkelijk bericht-----
> Van: cctalk-bounces at classiccmp.org
> [mailto:cctalk-bounces at classiccmp.org] Namens N0body H0me
> Verzonden: maandag 5 oktober 2009 18:10
> Aan: General Discussion: On-Topic and Off-Topic Posts
> Onderwerp: Re: DEC and HP hardware to go in Europe
>
>
>
> > -----Original Message-----
> > From: aek at bitsavers.org
> > Sent: Sun, 04 Oct 2009 16:35:38 -0700
> > To:
> > Subject: Re: DEC and HP hardware to go in Europe
> >
> > Rik Bos wrote:
> >> So it works ?
> >>
> >
> > yes, chugging along happily with 9.10
>
> Was 9.10 the last 680x0 version of HP/UX, or were there later
> ones? Do you have install media?
>
>
9.10 is the last version for the motorola 680x0.
Yes, but I think it's easier to ask Al to make it downloadeble.
Because I uploaded the images to Al.
I'm not sure if they are free.
I think if you have the according HP hardware, you have a license to use it.
-Rik
From hp-fix at xs4all.nl Mon Oct 5 12:08:13 2009
From: hp-fix at xs4all.nl (Rik Bos)
Date: Mon, 5 Oct 2009 19:08:13 +0200
Subject: DEC and HP hardware to go in Europe
In-Reply-To: <4AC9314A.2050506@bitsavers.org>
References: <4AC8CF8E.8000900@bitsavers.org>
<4AC9314A.2050506@bitsavers.org>
Message-ID: <595C312F0B3C467C82D3981AB1167DD4@xp1800>
> -----Oorspronkelijk bericht-----
> Van: cctalk-bounces at classiccmp.org
> [mailto:cctalk-bounces at classiccmp.org] Namens Al Kossow
> Verzonden: maandag 5 oktober 2009 1:36
> Aan: General Discussion: On-Topic and Off-Topic Posts
> Onderwerp: Re: DEC and HP hardware to go in Europe
>
> Rik Bos wrote:
> > So it works ?
> >
>
> yes, chugging along happily with 9.10
>
>
>
>
Great.
From mcguire at neurotica.com Mon Oct 5 12:26:23 2009
From: mcguire at neurotica.com (Dave McGuire)
Date: Mon, 5 Oct 2009 13:26:23 -0400
Subject: XTIDE controller now available
In-Reply-To: <4AC9B693.21667.A2607B4@cclist.sydex.com>
References: <4AC6B336.6010501@oldskool.org>,
<4AC9B693.21667.A2607B4@cclist.sydex.com>
Message-ID: <33BFA3A7-32ED-4714-8663-2157E7DC79C1@neurotica.com>
On Oct 5, 2009, at 12:04 PM, Chuck Guzis wrote:
> The overwhelming majority of those old 8-bit IDE controllers worked
> with XTIDE drives, which supported 8-bit data transfers.
> Unfortunately, even though the ATA standard kept the 8-bit transfer
> as an option for quite some time, no vendor supported it. Any IDE
> drive over about 100MB is likely to support only 16-bit transfers.
Yes, unfortunately this is true. It's highly annoying for those
of us who like to interface IDE drives to 8-bit processors but don't
want to use CF.
> As I understand the subject controller project, it latches the upper
> 8 bits of a 16-bit data transfer and makes it available in a
> subsequent cycle.
Ahh, very nice. Sorta like the very nice GIDE interface for Z80
systems. I've designed a similar circuit in Verilog, but haven't
tested it in real hardware yet.
> However, one can use a CF memory card in an 8-bit IDE application, as
> I understand that all CF cards support the 8-bit mode of ATA.
Yes, they do. CF cards are required to implement the 8-bit
transfer mode.
-Dave
--
Dave McGuire
Port Charlotte, FL
From bert at brothom.nl Mon Oct 5 12:42:03 2009
From: bert at brothom.nl (Bert Thomas)
Date: Mon, 05 Oct 2009 19:42:03 +0200
Subject: philips PBX
Message-ID: <4ACA2FEB.8000907@brothom.nl>
http://bert.brothom.nl/gallery2/main.php?g2_itemId=3226
Is it worth anything? Wanna have it? Let me know.
I bought it at an auction but I was disappointed to find just relays
inside. It takes up a lot of space, so I want to get rid of it.
From mcguire at neurotica.com Mon Oct 5 13:02:30 2009
From: mcguire at neurotica.com (Dave McGuire)
Date: Mon, 5 Oct 2009 14:02:30 -0400
Subject: philips PBX
In-Reply-To: <4ACA2FEB.8000907@brothom.nl>
References: <4ACA2FEB.8000907@brothom.nl>
Message-ID: <0B2D44B7-02C0-4723-9EAF-99F9C670A8B0@neurotica.com>
On Oct 5, 2009, at 1:42 PM, Bert Thomas wrote:
> http://bert.brothom.nl/gallery2/main.php?g2_itemId=3226
>
> Is it worth anything? Wanna have it? Let me know.
> I bought it at an auction but I was disappointed to find just relays
> inside. It takes up a lot of space, so I want to get rid of it.
Were you expecting something other than a bunch of relays? ;)
PBXen are typically very low-tech compared to the rest of the world.
Those edge-lit displays are worth a good bit, though. I'd love to
have those to build into a nice clock.
-Dave
--
Dave McGuire
Port Charlotte, FL
From trag at io.com Mon Oct 5 14:20:08 2009
From: trag at io.com (Jeff Walther)
Date: Mon, 5 Oct 2009 14:20:08 -0500 (CDT)
Subject: Help identifying unknown Mac SE accelerator
In-Reply-To:
References:
Message-ID: <78eb291530b419d51925bd5c0c2f1822.squirrel@webmail.prismnet.com>
>
> Date: Sat, 03 Oct 2009 18:19:17 -0700
> From: Josh Dersch
>
> Scrounged a Mac SE motherboard+accelerator from a parts bin at RE-PC
> this afternoon and I'm trying to figure out what it is. Unfortunately
> it looks like a few parts have been scavenged (a crystal oscillator and
> a few chips, plus the 68030+FPU) and there's a loose wire on the
> underside.
>
> I can't find any markings that give away its identity. I have a few
> pictures up at http://yahozna.dyndns.org/scratch/mysterymac/. Anyone
> have any ideas?
There were a number of accelerators available back in the early/mid 90s.
For an identification like that and possibly to find someone else with the
same accelerator who can ID the missing parts, I'd try the appropriate
sub-forum over on 68kmla.net. That's 68K Macintosh Liberation Army.
Jeff Walther
From geoffr at zipcon.net Mon Oct 5 14:39:25 2009
From: geoffr at zipcon.net (Geoffrey Reed)
Date: Mon, 05 Oct 2009 12:39:25 -0700
Subject: XTIDE controller now available
In-Reply-To:
Message-ID:
>On 10/4/09 5:47 PM, "Steven Hirsch" wrote:
>
> What am I not understanding about the need for this product? I have about
> a half-dozen 8-bit ISA IDE controllers, mostly Seagate branded. Didn't
> think they were particularly rare.
>
> Steve
>
>From what this sounds like it is able to talk to large capacity IDE drives,
presumedly 16-bit IDE drives. The older XT ide controllers by seagate (that
I had) were limited to a handful of drives that could do 8-bit wide data
transfers and were very limited capacity wise.
From ard at p850ug1.demon.co.uk Mon Oct 5 14:51:31 2009
From: ard at p850ug1.demon.co.uk (Tony Duell)
Date: Mon, 5 Oct 2009 20:51:31 +0100 (BST)
Subject: Classic computers endangered!
In-Reply-To:
from "Ethan Dicks" at Oct 2, 9 00:46:40 am
Message-ID:
> Agreed for many parts of 1990s machines, but as for 1960s and 1970s
> DEC machines in particular (the subject I know more about than
> others), there are a few parts here and there that are getting
> difficult to find without robbing them from other machines - Omnibus
> buffers come to mind first, and certain parts from the -8/i and -8/L
> era, like the 74H40 or the 7482. They aren't complete unobtanium yet,
> but they are nowhere near as easy to find as they were 10 years ago.
Sure, some parts are getting _hard_ to find, but that's not the same as
'impossible'. Geting a replacement '95 shift register for an HP
calculator was non-trivial, but a lot easier than finding a part for a
1990's PC. There are of course many work-arounds if you don;'t mind minor
kludges -- one of the M-series boards in my RK11C has a dead-bugged
74LS83 (IIRC) replacing a dead 7482. Works fine. Things like that.
-tony
From ard at p850ug1.demon.co.uk Mon Oct 5 14:59:55 2009
From: ard at p850ug1.demon.co.uk (Tony Duell)
Date: Mon, 5 Oct 2009 20:59:55 +0100 (BST)
Subject: 8MM Tape drives
In-Reply-To: <4AC762A7.2090507@bitsavers.org> from "Al Kossow" at Oct 3,
9 07:41:43 am
Message-ID:
>
> 8200's are reaching the end of their useful life. Rather than turning to
> goo, the pinch rollers crack.
Since, IIRC, it uses tapes with the same form factor as 8mm video
cassettes, does anyone know if any of the mechanism parts (particularly
the rubber parts :-)) are the same as those used in any 8mm camcorder? If
so, they would be fairly easy to obtain I think.
-tony
From ethan.dicks at gmail.com Mon Oct 5 15:26:00 2009
From: ethan.dicks at gmail.com (Ethan Dicks)
Date: Mon, 5 Oct 2009 16:26:00 -0400
Subject: Classic computers endangered!
In-Reply-To:
References:
Message-ID:
On Mon, Oct 5, 2009 at 3:51 PM, Tony Duell wrote:
>> Agreed for many parts of 1990s machines, but as for 1960s and 1970s
>> DEC machines in particular (the subject I know more about than
>> others), there are a few parts here and there that are getting
>> difficult to find without robbing them from other machines - Omnibus
>> buffers come to mind first, and certain parts from the -8/i and -8/L
>> era, like the 74H40 or the 7482...
>
> ...There are of course many work-arounds if you don;'t mind minor
> kludges -- one of the M-series boards in my RK11C has a dead-bugged
> 74LS83 (IIRC) replacing a dead 7482. Works fine. Things like that.
Since I have a small number of 74LS83s in my parts bins, I might have
to try that if I end up verifying that I have a dead 7482 on one of my
M220s (from an -8/L, in my case).
I think I've seen 74LS83s for sale somewhat recently (at Unicorn or
some similar place).
-ethan
From mcguire at neurotica.com Mon Oct 5 16:10:13 2009
From: mcguire at neurotica.com (Dave McGuire)
Date: Mon, 5 Oct 2009 17:10:13 -0400
Subject: XTIDE controller now available
In-Reply-To:
References:
Message-ID:
On Oct 5, 2009, at 3:39 PM, Geoffrey Reed wrote:
>> What am I not understanding about the need for this product? I
>> have about
>> a half-dozen 8-bit ISA IDE controllers, mostly Seagate branded.
>> Didn't
>> think they were particularly rare.
>
> From what this sounds like it is able to talk to large capacity IDE
> drives,
> presumedly 16-bit IDE drives. The older XT ide controllers by
> seagate (that
> I had) were limited to a handful of drives that could do 8-bit wide
> data
> transfers and were very limited capacity wise.
The big difference here is LBA vs. C/H/S addressing. Recall that
the IDE interface is a clone of the register-level programming
interface of the ancient WD1010 MFM hard disk controller chip family,
whose registers are 8 bits wide. There's a register for the starting
sector number (256 sectors), a register for the low byte of the
cylinder address and two bits of another register for the high part
of the cylinder address (meaning it tops out at 1024 cylinders), and
half of a register for the head number (meaning 16 heads).
1024 cylinders * 16 heads * 256 sectors * 512 bytes/sector = 2GB
I don't know where any supposed 520MB limit comes from; if someone
can enlighten me there, I'd appreciate it.
LBA (Logical Block Addressing) mode takes a large, flat linear
address space of blocks with no notion of cylinders, heads, or
sectors. It's 28 bits wide, topping out at about 137GB. IDE
interfaces take that word of bits, break it up into little pieces,
and sprinkle them across the former cylinder/head/sector registers
(and pieces of registers) in a very kludgy and inefficient way. They
take the LBA address and put the first 8 bits into the sector
register, the middle 16 bits into the cylinder number register (yes,
using it as a 16-bit register!), and the high four bits go into the
head and device select register.
Ugly, ugly, ugly.
New kludges were devised to exceed this ~137GB plateau
(obviously), but I don't know how they work offhand because I've
never designed with them.
Anyway, early BIOSs don't know how to deal with this, which is one
of the things that makes this XTIDE controller special.
-Dave
--
Dave McGuire
Port Charlotte, FL
From cclist at sydex.com Mon Oct 5 16:43:00 2009
From: cclist at sydex.com (Chuck Guzis)
Date: Mon, 05 Oct 2009 14:43:00 -0700
Subject: XTIDE controller now available
In-Reply-To:
References: ,
Message-ID: <4ACA05F4.1311.B5C1A0F@cclist.sydex.com>
On 5 Oct 2009 at 17:10, Dave McGuire wrote:
> New kludges were devised to exceed this ~137GB plateau
> (obviously), but I don't know how they work offhand because I've
> never designed with them.
Think "shadow registers"--instead of each 8-bit register in the task
file representing an 8-bit quantity, each will accept two consecutive
output or input commands and accept or return 16 bits. In other
words, each register has a flip-flop that directs I/O to either 8 bit
register. It's not pretty, but it works.
> Anyway, early BIOSs don't know how to deal with this, which is one
>
> of the things that makes this XTIDE controller special.
Well, one can also declare a minimal conventional CHS partition from
which one boots and then install a driver to access the remainder of
the drive. Something akin to the way a drive extender works. When I
had my AT, I used some 1224 cylinder MFM drives that early BIOSes
didn't know how to handle. So I booted from a smaller partition and
then loaded my own driver. With an RLL controller, that gave me a
whopping 250MB or so.
--Chuck
From afra at aurigae.demon.co.uk Mon Oct 5 17:00:33 2009
From: afra at aurigae.demon.co.uk (Phill Harvey-Smith)
Date: Mon, 05 Oct 2009 23:00:33 +0100
Subject: XTIDE controller now available
In-Reply-To:
References:
Message-ID: <4ACA6C81.7070001@aurigae.demon.co.uk>
Dave McGuire wrote:
> I don't know where any supposed 520MB limit comes from; if someone can
> enlighten me there, I'd appreciate it.
IIRC it's from the fact that most BIOSes can only deal with a 6 bit
sector number thus :
AH = 02h
AL = number of sectors to read (must be nonzero)
CH = low eight bits of cylinder number
CL = sector number 1-63 (bits 0-5)
high two bits of cylinder (bits 6-7, hard disk only)
DH = head number
DL = drive number (bit 7 set for hard disk)
ES:BX -> data buffer
Copied from Ralf Brown's Interrupt List
So 1024 cylinders x 16 Heads x 64 sectors is 512MB Later bioses I
believe used the top bits of the head number to get greater capacity.
Cheers.
Phill.
--
Phill Harvey-Smith, Programmer, Hardware hacker, and general eccentric !
"You can twist perceptions, but reality won't budge" -- Rush.
From lynchaj at yahoo.com Mon Oct 5 18:14:30 2009
From: lynchaj at yahoo.com (Andrew Lynch)
Date: Mon, 5 Oct 2009 19:14:30 -0400
Subject: N8VEM S-100 Prototyping Board PCB manufacturing order imminent
Message-ID:
Hi! If you are interested in getting one or more N8VEM S-100 Prototyping
Board PCBs, I am getting ready to make a manufacturing order. Based on my
current projections, I am estimating a single N8VEM S-100 Prototyping Board
PCB will cost $18 each (reduced from $25 each originally) plus $3 shipping
in the US and $6 shipping overseas. I will combine shipping to reduce
shipping costs depending on final weight.
Please let me know soon if you would like to join in the order. If more
persons join the order PCB costs may be further reduced. You can see
additional information on the N8VEM S-100 Prototyping Board at the N8VEM
wiki:
http://n8vem-sbc.pbworks.com/browse/#view=ViewFolder
¶m=S100
Thanks and have a nice day!
Andrew Lynch
From aek at bitsavers.org Mon Oct 5 18:55:35 2009
From: aek at bitsavers.org (Al Kossow)
Date: Mon, 05 Oct 2009 16:55:35 -0700
Subject: IMP system software
In-Reply-To:
References: <76E77758-DF45-48E5-A376-DF4EABAA75D8@loomcom.com> (sfid-20090930_142507_081247_3810518B) <4AC4F96C.30004@heeltoe.com> <4887868A-86FE-4250-8C77-B13A63EF9197@loomcom.com> <4AC510E3.6080802@adrianwise.co.uk> <4AC5EE96.50201@hachti.de>
<4AC6FDC6.2030803@adrianwise.co.uk>
Message-ID: <4ACA8777.6030001@bitsavers.org>
Daniel Seagraves wrote:
> Hey, is the IMP software also what was used to make a TIP or a TAC, or
> were those different?
It was different. TIPs were terminal servers.
I just talked to the two people who brought up the first IMPs at SRI and
UCLA. The earliest ones booted from paper tape. Once there was critical mass
BBN added a boot rom board, and the software was remote loaded from them
or from a neighboring IMP (they all ran the same version of the software).
From dseagrav at lunar-tokyo.net Mon Oct 5 19:45:50 2009
From: dseagrav at lunar-tokyo.net (Daniel Seagraves)
Date: Mon, 5 Oct 2009 19:45:50 -0500
Subject: IMP system software
In-Reply-To: <4ACA8777.6030001@bitsavers.org>
References: <76E77758-DF45-48E5-A376-DF4EABAA75D8@loomcom.com> (sfid-20090930_142507_081247_3810518B) <4AC4F96C.30004@heeltoe.com> <4887868A-86FE-4250-8C77-B13A63EF9197@loomcom.com> <4AC510E3.6080802@adrianwise.co.uk> <4AC5EE96.50201@hachti.de>
<4AC6FDC6.2030803@adrianwise.co.uk>
<4ACA8777.6030001@bitsavers.org>
Message-ID: <8a8d7f7780ce4bfa924fc7f3f5529ba3@lunar-tokyo.net>
Does anyone still have the TIP or TAC software?
Also, did the TIP/TAC require an IMP of its own?
On Oct 5, 2009, at 6:55 PM, Al Kossow wrote:
> Daniel Seagraves wrote:
>> Hey, is the IMP software also what was used to make a TIP or a TAC,
>> or were those different?
>
> It was different. TIPs were terminal servers.
>
> I just talked to the two people who brought up the first IMPs at SRI
> and
> UCLA. The earliest ones booted from paper tape. Once there was
> critical mass
> BBN added a boot rom board, and the software was remote loaded from
> them
> or from a neighboring IMP (they all ran the same version of the
> software).
>
From hachti at hachti.de Mon Oct 5 20:10:11 2009
From: hachti at hachti.de (Philipp Hachtmann)
Date: Tue, 06 Oct 2009 03:10:11 +0200
Subject: philips PBX
In-Reply-To: <4ACA2FEB.8000907@brothom.nl>
References: <4ACA2FEB.8000907@brothom.nl>
Message-ID: <4ACA98F3.6040101@hachti.de>
> Is it worth anything?
Is that an important question? I like it :-)
--
http://www.hachti.de
From ggs at shiresoft.com Mon Oct 5 20:57:33 2009
From: ggs at shiresoft.com (Guy Sotomayor)
Date: Mon, 5 Oct 2009 18:57:33 -0700
Subject: XTIDE controller now available
In-Reply-To:
References:
Message-ID:
On Oct 5, 2009, at 2:10 PM, Dave McGuire wrote:
> On Oct 5, 2009, at 3:39 PM, Geoffrey Reed wrote:
>>> What am I not understanding about the need for this product? I
>>> have about
>>> a half-dozen 8-bit ISA IDE controllers, mostly Seagate branded.
>>> Didn't
>>> think they were particularly rare.
>>
>> From what this sounds like it is able to talk to large capacity IDE
>> drives,
>> presumedly 16-bit IDE drives. The older XT ide controllers by
>> seagate (that
>> I had) were limited to a handful of drives that could do 8-bit wide
>> data
>> transfers and were very limited capacity wise.
>
> The big difference here is LBA vs. C/H/S addressing. Recall that
> the IDE interface is a clone of the register-level programming
> interface of the ancient WD1010 MFM hard disk controller chip
> family, whose registers are 8 bits wide. There's a register for the
> starting sector number (256 sectors), a register for the low byte of
> the cylinder address and two bits of another register for the high
> part of the cylinder address (meaning it tops out at 1024
> cylinders), and half of a register for the head number (meaning 16
> heads).
>
> 1024 cylinders * 16 heads * 256 sectors * 512 bytes/sector = 2GB
>
> I don't know where any supposed 520MB limit comes from; if someone
> can enlighten me there, I'd appreciate it.
It was originally 63 sectors. I was one of the 3 people at IBM who
came up with this scheme (because the controller we had did LBA
addressing so we needed a way to map C/H/S to LBA in a simple way).
We *knew* at the time that this was constraining but we figured that
LBA would be in place before we hit the limit. We were wrong.
TTFN - Guy
From ethan.dicks at gmail.com Mon Oct 5 21:59:05 2009
From: ethan.dicks at gmail.com (Ethan Dicks)
Date: Mon, 5 Oct 2009 22:59:05 -0400
Subject: Two kinds of Apple Airport cards?!?
Message-ID:
Hi, All,
I had great success recently, wedging in a "Dell 1150" Orinoco-based
802.11b card into a CRT-based iMac. I'm having less success with
finding something to fit a G4 cube that recently followed me home.
While at first glance, the antenna connectors look the same in the G4
Cube and iMac, they are not. I'm rather puzzled by that, unless Apple
happened to change connectors from one line to another. I searched
around a bit, but didn't seem to turn up any stated differences on
Apple's support site or on various fora that cover older Macs.
Does anyone have any experience with various G3 and G4 Macs and
Airport cards? Are there two "styles" with incompatible antenna
jacks?
Thanks,
-ethan
From n0body.h0me at inbox.com Mon Oct 5 23:21:39 2009
From: n0body.h0me at inbox.com (N0body H0me)
Date: Mon, 5 Oct 2009 20:21:39 -0800
Subject: DEC and HP hardware to go in Europe
In-Reply-To: <02118665D76C4CB6B1BA373EE3851852@xp1800>
References: <4ac8cf8e.8000900@bitsavers.org>
<3aa626f2dbe.000003f9n0body.h0me@inbox.com>
Message-ID: <41094A2C5C8.000009C5n0body.h0me@inbox.com>
>>> Rik Bos wrote:
>>>> So it works ?
>>>>
>>>
>>> yes, chugging along happily with 9.10
>>
>> Was 9.10 the last 680x0 version of HP/UX, or were there later
>> ones? Do you have install media?
>>
>>
>
> 9.10 is the last version for the motorola 680x0.
> Yes, but I think it's easier to ask Al to make it downloadeble.
> Because I uploaded the images to Al.
> I'm not sure if they are free.
> I think if you have the according HP hardware, you have a license to use
> it.
>
> -Rik
Hmmm, I'm wondering about this. I have a GPIB drive that goes
with my 370 that has HPUX 9.x, but I have neither passwords nor
install media. I may have to stick with *BSD. I suspect HP
is pretty watchful over their IP.
Are you using tape or disk images?
____________________________________________________________
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From ggs17 at mac.com Mon Oct 5 17:07:23 2009
From: ggs17 at mac.com (Guy Sotomayor)
Date: Mon, 05 Oct 2009 15:07:23 -0700
Subject: XTIDE controller now available
In-Reply-To:
References:
Message-ID: <4AF6BE8B-872B-415B-B11B-B24045CDAB5A@mac.com>
On Oct 5, 2009, at 3:39 PM, Geoffrey Reed wrote:
>> What am I not understanding about the need for this product? I
>> have about
>> a half-dozen 8-bit ISA IDE controllers, mostly Seagate branded.
>> Didn't
>> think they were particularly rare.
>
> From what this sounds like it is able to talk to large capacity IDE
> drives,
> presumedly 16-bit IDE drives. The older XT ide controllers by
> seagate (that
> I had) were limited to a handful of drives that could do 8-bit wide
> data
> transfers and were very limited capacity wise.
The big difference here is LBA vs. C/H/S addressing. Recall that
the IDE interface is a clone of the register-level programming
interface of the ancient WD1010 MFM hard disk controller chip family,
whose registers are 8 bits wide. There's a register for the starting
sector number (256 sectors), a register for the low byte of the
cylinder address and two bits of another register for the high part of
the cylinder address (meaning it tops out at 1024 cylinders), and half
of a register for the head number (meaning 16 heads).
1024 cylinders * 16 heads * 256 sectors * 512 bytes/sector = 2GB
I don't know where any supposed 520MB limit comes from; if someone
can enlighten me there, I'd appreciate it.
LBA (Logical Block Addressing) mode takes a large, flat linear
address space of blocks with no notion of cylinders, heads, or
sectors. It's 28 bits wide, topping out at about 137GB. IDE
interfaces take that word of bits, break it up into little pieces, and
sprinkle them across the former cylinder/head/sector registers (and
pieces of registers) in a very kludgy and inefficient way. They take
the LBA address and put the first 8 bits into the sector register, the
middle 16 bits into the cylinder number register (yes, using it as a
16-bit register!), and the high four bits go into the head and device
select register.
Ugly, ugly, ugly.
New kludges were devised to exceed this ~137GB plateau (obviously),
but I don't know how they work offhand because I've never designed
with them.
Anyway, early BIOSs don't know how to deal with this, which is one
of the things that makes this XTIDE controller special.
-Dave
--
Dave McGuire
Port Charlotte, FL
From ggs17 at mac.com Mon Oct 5 17:07:53 2009
From: ggs17 at mac.com (Guy Sotomayor)
Date: Mon, 05 Oct 2009 15:07:53 -0700
Subject: XTIDE controller now available
In-Reply-To: <4ACA6C81.7070001@aurigae.demon.co.uk>
References:
<4ACA6C81.7070001@aurigae.demon.co.uk>
Message-ID: <4E1E738A-DB84-4310-AA34-D259ECA11AFF@mac.com>
On Oct 5, 2009, at 3:00 PM, Phill Harvey-Smith wrote:
> Dave McGuire wrote:
>> I don't know where any supposed 520MB limit comes from; if someone
>> can enlighten me there, I'd appreciate it.
>
> IIRC it's from the fact that most BIOSes can only deal with a 6 bit
> sector number thus :
>
> AH = 02h
> AL = number of sectors to read (must be nonzero)
> CH = low eight bits of cylinder number
> CL = sector number 1-63 (bits 0-5)
> high two bits of cylinder (bits 6-7, hard disk only)
> DH = head number
> DL = drive number (bit 7 set for hard disk)
> ES:BX -> data buffer
>
There were 3 of us (I was one...I can go I'd have to think about who
the others were) at IBM that defined the mapping to ~512MB. We knew
at the time that this was a limit but we figured PCs would switch to
an LBA format before we hit the limit...we were wrong. :-)
TTFN - Guy
From snhirsch at gmail.com Mon Oct 5 17:18:00 2009
From: snhirsch at gmail.com (Steven Hirsch)
Date: Mon, 5 Oct 2009 18:18:00 -0400 (EDT)
Subject: XTIDE controller now available
In-Reply-To: <4AC9B693.21667.A2607B4@cclist.sydex.com>
References: <4AC6B336.6010501@oldskool.org>,
<4AC9B693.21667.A2607B4@cclist.sydex.com>
Message-ID:
On Mon, 5 Oct 2009, Chuck Guzis wrote:
> On 4 Oct 2009 at 20:47, Steven Hirsch wrote:
>
>> What am I not understanding about the need for this product? I have
>> about a half-dozen 8-bit ISA IDE controllers, mostly Seagate branded.
>> Didn't think they were particularly rare.
>
> The overwhelming majority of those old 8-bit IDE controllers worked
> with XTIDE drives, which supported 8-bit data transfers.
> Unfortunately, even though the ATA standard kept the 8-bit transfer
> as an option for quite some time, no vendor supported it. Any IDE
> drive over about 100MB is likely to support only 16-bit transfers.
>
> As I understand the subject controller project, it latches the upper
> 8 bits of a 16-bit data transfer and makes it available in a
> subsequent cycle.
Ah. Ok, thanks all. I didn't really consider the 8/16 bit issue, but
should know better. This is a big problem when trying to find a
replacement drive for Apple II drive systems such as the Applied
Engineering Vulcan. There are only a small handful of IDE drives that
will work with them.
> However, one can use a CF memory card in an 8-bit IDE application, as
> I understand that all CF cards support the 8-bit mode of ATA.
That's an interesting fact I'll keep filed away!
Steve
--
From teoz at neo.rr.com Tue Oct 6 02:05:39 2009
From: teoz at neo.rr.com (Teo Zenios)
Date: Tue, 6 Oct 2009 03:05:39 -0400
Subject: XTIDE controller now available
References: <4AC6B336.6010501@oldskool.org>,
<4AC9B693.21667.A2607B4@cclist.sydex.com>
Message-ID:
----- Original Message -----
From: "Steven Hirsch"
To: "General Discussion: On-Topic Posts Only"
Sent: Monday, October 05, 2009 6:18 PM
Subject: Re: XTIDE controller now available
> Ah. Ok, thanks all. I didn't really consider the 8/16 bit issue, but
> should know better. This is a big problem when trying to find a
> replacement drive for Apple II drive systems such as the Applied
> Engineering Vulcan. There are only a small handful of IDE drives that
> will work with them.
>
>> However, one can use a CF memory card in an 8-bit IDE application, as
>> I understand that all CF cards support the 8-bit mode of ATA.
>
> That's an interesting fact I'll keep filed away!
>
> Steve
>
>
> --
I would think an 8bit SCSI version would be cool to have as well, still
plenty of smaller SCSI drives around as well as Iomega and Syquest
removables plus tape drives.
From quapla at xs4all.nl Tue Oct 6 02:21:44 2009
From: quapla at xs4all.nl (Ed Groenenberg)
Date: Tue, 6 Oct 2009 09:21:44 +0200
Subject: philips PBX
In-Reply-To: <4ACA2FEB.8000907@brothom.nl>
References: <4ACA2FEB.8000907@brothom.nl>
Message-ID:
Nice device. Why not give it to a telecom museum or hook it up with
a few old rotary type phones? Would be a nice setup for demonstration.
Ed
> http://bert.brothom.nl/gallery2/main.php?g2_itemId=3226
>
> Is it worth anything? Wanna have it? Let me know.
> I bought it at an auction but I was disappointed to find just relays
> inside. It takes up a lot of space, so I want to get rid of it.
>
>
>
--
Certified : VCP 3.x, SCSI 3.x SCSA S10, SCNA S10
From bert at brothom.nl Tue Oct 6 05:01:05 2009
From: bert at brothom.nl (Bert Thomas)
Date: Tue, 06 Oct 2009 12:01:05 +0200
Subject: philips PBX
Message-ID: <4ACB1561.3070601@brothom.nl>
I'm subscribed to the digest version, so I'll reply to all questions at
once in this mail.
>>
Were you expecting something other than a bunch of relays? ;)
PBXen are typically very low-tech compared to the rest of the world.
<<
I hoped to find some electronics for for example dial tone generation.
>>
Is that an important question? I like it :-)
<<
I don't to trash it if it is valuable to someone.
>>
Nice device. Why not give it to a telecom museum or hook it up with
a few old rotary type phones? Would be a nice setup for demonstration.
<<
I did think of a telephony museum. But the reason for not choosing the
other option is that I have so many old systems now that probably even
if I started playing full time with them from now till the day I die I
probably cannot do everything I would like to do. So I choose to
restrict my time to just the systems that give me the most satisfaction.
I'm addicted to satisfaction! :-)
Regards,
Bert
From jrasite at eoni.com Tue Oct 6 07:55:11 2009
From: jrasite at eoni.com (Jim Arnott)
Date: Tue, 6 Oct 2009 05:55:11 -0700
Subject: Two kinds of Apple Airport cards?!?
In-Reply-To:
References:
Message-ID: <5DE407FB-2EA7-4772-BCD0-0C6A170369C4@eoni.com>
On Oct 5, 2009, at 7:59 PM, Ethan Dicks wrote:
> Are there two "styles" with incompatible antenna
> jacks?
Airport and Airport Extreme.
Jim
From auringer at tds.net Tue Oct 6 08:35:36 2009
From: auringer at tds.net (auringer tds.net)
Date: Tue, 6 Oct 2009 08:35:36 -0500
Subject: DEC and HP hardware to go in Europe
In-Reply-To: <41094A2C5C8.000009C5n0body.h0me@inbox.com>
References: <4ac8cf8e.8000900@bitsavers.org>
<3aa626f2dbe.000003f9n0body.h0me@inbox.com>
<02118665D76C4CB6B1BA373EE3851852@xp1800>
<41094A2C5C8.000009C5n0body.h0me@inbox.com>
Message-ID: <3187f0030910060635wa7bcdf2h5c3b1686187facb6@mail.gmail.com>
On Mon, Oct 5, 2009 at 11:21 PM, N0body H0me wrote:
>
> Hmmm, I'm wondering about this. I have a GPIB drive that goes
> with my 370 that has HPUX 9.x, but I have neither passwords nor
> install media. I may have to stick with *BSD. I suspect HP
> is pretty watchful over their IP.
>
It isn't HP you have to worry about any more, it is TAMS that sells HP-UX
9.10 for the Hp 300 series of computers. $1800 for a 2 user license.
http://www.tamsinc.com/hpux/hpux910.htm
-Jon
From dbetz at xlisper.com Tue Oct 6 09:05:42 2009
From: dbetz at xlisper.com (David Betz)
Date: Tue, 6 Oct 2009 10:05:42 -0400
Subject: Some DEC parts and a Sun-compatible CD-ROM drive
In-Reply-To: <003201ca4141$a1b62930$e5227b90$@jarratt@ntlworld.com>
References:
<99B30BCA-9829-456A-9ABD-E8841010CAF2@xlisper.com>
<003201ca4141$a1b62930$e5227b90$@jarratt@ntlworld.com>
Message-ID: <54975F82-CB16-4801-8ACD-E2361EEBFEE4@xlisper.com>
I'm not sure it would be a good idea to ship the RZ25 to the UK since
I'm not absolutely certain that it works. I figured I'd pay the
shipping to someone local if they were interested and that nothing
would be lost if it turned out to be bad. I have no reason to believe
it doesn't work but I have never tried it since it was given to me.
David
On Sep 29, 2009, at 4:15 PM, Rob Jarratt wrote:
> Any idea what it might cost to ship the RZ25 to the UK?
>
> Thanks
>
> Rob
>
> -----Original Message-----
> From: cctalk-bounces at classiccmp.org [mailto:cctalk-
> bounces at classiccmp.org]
> On Behalf Of David Betz
> Sent: 29 September 2009 20:29
> To: General Discussion: On-Topic and Off-Topic Posts
> Subject: Re: Some DEC parts and a Sun-compatible CD-ROM drive
>
>
>> I have a few DEC items that might be of interest to people here:
>>
>> RZ25-E hard drive
>> BCC14-10 cable
>> BCC05 cable
>> H8574-A SCSI terminator
>>
>> I also have a Toshiba TXM3401E1 CD-ROM drive that I used to install
>> software on a Sun SPARCstation.
>>
>> Of course, I'd like to sell this stuff for millions or at least
>> trade it for an Apple 1 but I'll consider all offers that don't
>> involve negative numbers!
>>
>> Anyone interested in this stuff?
>
> I forgot to mention that this stuff is in Bedford, NH but it's small
> enough that it could be shipped. I also have a canvas bag with the
> NeXT logo and the text "The NeXT Day" on it that was given to me when
> I attended the introduction of the NeXT machine in San Francisco.
>
> Hint: zero is not a negative number
>
From dbetz at xlisper.com Tue Oct 6 09:14:26 2009
From: dbetz at xlisper.com (David Betz)
Date: Tue, 6 Oct 2009 10:14:26 -0400
Subject: Some DEC parts and a Sun-compatible CD-ROM drive
In-Reply-To: <54975F82-CB16-4801-8ACD-E2361EEBFEE4@xlisper.com>
References:
<99B30BCA-9829-456A-9ABD-E8841010CAF2@xlisper.com>
<003201ca4141$a1b62930$e5227b90$@jarratt@ntlworld.com>
<54975F82-CB16-4801-8ACD-E2361EEBFEE4@xlisper.com>
Message-ID:
On Oct 6, 2009, at 10:05 AM, David Betz wrote:
> I'm not sure it would be a good idea to ship the RZ25 to the UK
> since I'm not absolutely certain that it works. I figured I'd pay
> the shipping to someone local if they were interested and that
> nothing would be lost if it turned out to be bad. I have no reason
> to believe it doesn't work but I have never tried it since it was
> given to me.
Sorry! This was meant to be a private message.
From joachim.thiemann at gmail.com Tue Oct 6 09:26:32 2009
From: joachim.thiemann at gmail.com (Joachim Thiemann)
Date: Tue, 6 Oct 2009 10:26:32 -0400
Subject: "Imaging" a MFM drive?
Message-ID: <4affc5e0910060726v44b2c169ic7187b9ac0c87896@mail.gmail.com>
Hello,
I have an old MFM drive (MiniScribe 8425) hooked up to a Xebec
1210C 8-bit ISA controller, pulled out of my Amiga 1060 sidecar, which
used to be the system drive for my A1000 (still in fine shape, thank
you, though the sidecar sadly isn't). The drive ought to have a 5Meg
DOS partition and the rest Amiga formatted.
Out of nostalgia and curiosity, I'd like to attempt to "image" the
drive, to see if I can get at the old Amiga files. Any idea how this
might be possible? I can get a hold of a 1998-era PC, mainly PCI but
still with a single 16-bit ISA slot - but I have no idea if there is
any software that can then get the bits off the drive. ISTR that the
xd driver in linux was broken or removed, or is the card WD100x
compatible? Can NetBSD talk to it? Will the 8-bit BIOS on the card
work in a Celeron class machine? If somehow I find a sufficiently old
PC, how can I get the data off the non-MS-DOS partition?
FWIW, if you're in the Montreal/Ottawa region, and you can make an
image of the drive for me, you can keep the controller and the card
for your collection, and I could even give you a Sidecar with or
without Amiga 1000 for your troubles :-) It is of course quite
possible that both the controller and/or the drive have gone to
silicon heaven, and might make nice wall decorations.
Joe.
PS. I'm thinking a A2000 with A2086 card would probably be a good way
to get at the data. I have neither, only an A3000.
--
Joachim Thiemann :: http://www.tsp.ece.mcgill.ca/~jthiem
From emu at e-bbes.com Tue Oct 6 09:41:25 2009
From: emu at e-bbes.com (e.stiebler)
Date: Tue, 06 Oct 2009 08:41:25 -0600
Subject: "Imaging" a MFM drive?
In-Reply-To: <4affc5e0910060726v44b2c169ic7187b9ac0c87896@mail.gmail.com>
References: <4affc5e0910060726v44b2c169ic7187b9ac0c87896@mail.gmail.com>
Message-ID: <4ACB5715.4080701@e-bbes.com>
Joachim Thiemann wrote:
> Hello,
> Out of nostalgia and curiosity, I'd like to attempt to "image" the
> drive, to see if I can get at the old Amiga files. Any idea how this
> might be possible?
If you don't succeed, and can wait, we just got our boards in from
assembly. We made an (hopfully) universal MFM reader/writer/emulator.
But as usual, we are still fighting software issues. Not even an idea,
when we will be ready for user data.
Just saying, don't throw away the drive ;-)
Cheers
From lehmann at ans-netz.de Tue Oct 6 10:08:32 2009
From: lehmann at ans-netz.de (Oliver Lehmann)
Date: Tue, 6 Oct 2009 17:08:32 +0200
Subject: "Imaging" a MFM drive?
In-Reply-To: <4ACB5715.4080701@e-bbes.com>
References: <4affc5e0910060726v44b2c169ic7187b9ac0c87896@mail.gmail.com>
<4ACB5715.4080701@e-bbes.com>
Message-ID: <20091006170832.017b12c6.lehmann@ans-netz.de>
e.stiebler wrote:
> Joachim Thiemann wrote:
> > Hello,
> > Out of nostalgia and curiosity, I'd like to attempt to "image" the
> > drive, to see if I can get at the old Amiga files. Any idea how this
> > might be possible?
>
> If you don't succeed, and can wait, we just got our boards in from
> assembly. We made an (hopfully) universal MFM reader/writer/emulator.
> But as usual, we are still fighting software issues. Not even an idea,
> when we will be ready for user data.
>
> Just saying, don't throw away the drive ;-)
Any more facts available? Online?
I'm asking because I guess quite some people might be interested in this.
I only know of solutions for replacing specific ST506 interface harddisk
(no "generic" replacement) and even those are kinda expensive.
I guess it must have a quite decent microprocessor to emulate it. What
real storage will be used to save the data on? CF-card, SD-card or
something? I fear this because they are not that good when it comes to
many reads and writes (I have systems where the swap is for example on a
MFM harddisk as well...)
So.. can you share more information or do you have a page online?
--
Oliver Lehmann
http://www.pofo.de/
http://wishlist.ans-netz.de/
From dgahling at hotmail.com Tue Oct 6 10:20:46 2009
From: dgahling at hotmail.com (Dan Gahlinger)
Date: Tue, 6 Oct 2009 11:20:46 -0400
Subject: "Imaging" a MFM drive?
In-Reply-To: <4ACB5715.4080701@e-bbes.com>
References: <4affc5e0910060726v44b2c169ic7187b9ac0c87896@mail.gmail.com>
Message-ID:
load that pc with linux, and use "dd"
it'll do a raw dump of the drive to binary (iso) format
Dan.
> Date: Tue, 6 Oct 2009 08:41:25 -0600
> From: emu at e-bbes.com
> To:
> Subject: Re: "Imaging" a MFM drive?
>
> Joachim Thiemann wrote:
> > Hello,
> > Out of nostalgia and curiosity, I'd like to attempt to "image" the
> > drive, to see if I can get at the old Amiga files. Any idea how this
> > might be possible?
>
> If you don't succeed, and can wait, we just got our boards in from
> assembly. We made an (hopfully) universal MFM reader/writer/emulator.
> But as usual, we are still fighting software issues. Not even an idea,
> when we will be ready for user data.
>
> Just saying, don't throw away the drive ;-)
>
> Cheers
_________________________________________________________________
New! Open Messenger faster on the MSN homepage
http://go.microsoft.com/?linkid=9677405
From classiccmp at philpem.me.uk Tue Oct 6 10:51:07 2009
From: classiccmp at philpem.me.uk (Philip Pemberton)
Date: Tue, 06 Oct 2009 16:51:07 +0100
Subject: "Imaging" a MFM drive?
In-Reply-To: <4affc5e0910060726v44b2c169ic7187b9ac0c87896@mail.gmail.com>
References: <4affc5e0910060726v44b2c169ic7187b9ac0c87896@mail.gmail.com>
Message-ID: <4ACB676B.4070403@philpem.me.uk>
Joachim Thiemann wrote:
> I have an old MFM drive (MiniScribe 8425) hooked up to a Xebec
> 1210C 8-bit ISA controller, pulled out of my Amiga 1060 sidecar,
[...]
> I can get a hold of a 1998-era PC, mainly PCI but
> still with a single 16-bit ISA slot - but I have no idea if there is
> any software that can then get the bits off the drive.
There are a few things I'd be worried about here...
- You need to know what parameters were used when formatting the
drive. Usually these will be the ones printed on the drive label (or in
the instruction book) but sometimes e.g. the cylinder count is reduced
to get around bad cylinders, and so on.
- As it's an 8-bit card, it should work fine in a 16-bit ISA slot.
Problem is, it may well conflict with the motherboard's onboard IDE
controller (if it has one, which is likely). At the very least you'll
need to configure the Xebec card as a secondary controller, then turn
off the secondary IDE controller in the BIOS.
> ISTR that the
> xd driver in linux was broken or removed, or is the card WD100x
> compatible?
It's still in the 2.6 kernel source... No idea if it works, but in any
case you'll probably have to build a custom kernel to use it (I'll bet
most Linux distros won't compile it in by default).
> Will the 8-bit BIOS on the card
> work in a Celeron class machine?
Should do. Worst case, pull the EPROM chip or flip the ROM_DISABLE jumper.
> If somehow I find a sufficiently old
> PC, how can I get the data off the non-MS-DOS partition?
$ su -
# dd if=/dev/hd(whatever the Xebec comes up as) of=/root/hdd_image
Then copy hdd_image off onto another (faster) machine for processing.
That'll give you a raw dump of the contents of the drive. Then you just
have to figure out the partitioning and data structure (even/odd word
storage, and so on)...
It should be possible to search the drive image block-by-block to find
the Amiga FS superblock -- you can certainly do it for FAT{12,16,32} and
the Linux Extfs variants because there's static data in the superblock.
--
Phil.
classiccmp at philpem.me.uk
http://www.philpem.me.uk/
From aek at bitsavers.org Tue Oct 6 11:07:46 2009
From: aek at bitsavers.org (Al Kossow)
Date: Tue, 06 Oct 2009 09:07:46 -0700
Subject: "Imaging" a MFM drive?
In-Reply-To: <4ACB5715.4080701@e-bbes.com>
References: <4affc5e0910060726v44b2c169ic7187b9ac0c87896@mail.gmail.com>
<4ACB5715.4080701@e-bbes.com>
Message-ID: <4ACB6B52.1060608@bitsavers.org>
e.stiebler wrote:
> If you don't succeed, and can wait, we just got our boards in from
> assembly. We made an (hopfully) universal MFM reader/writer/emulator.
> But as usual, we are still fighting software issues. Not even an idea,
> when we will be ready for user data.
>
Are there any details on this available?
I had been wondering this weekend if a Catweasel had high enough timer
resolution for a ST-412 era data stream.
From joachim.thiemann at gmail.com Tue Oct 6 11:17:35 2009
From: joachim.thiemann at gmail.com (Joachim Thiemann)
Date: Tue, 6 Oct 2009 12:17:35 -0400
Subject: "Imaging" a MFM drive?
In-Reply-To: <4ACB676B.4070403@philpem.me.uk>
References: <4affc5e0910060726v44b2c169ic7187b9ac0c87896@mail.gmail.com>
<4ACB676B.4070403@philpem.me.uk>
Message-ID: <4affc5e0910060917w15318234p88238dd55a11d9d1@mail.gmail.com>
On Tue, Oct 6, 2009 at 11:51, Philip Pemberton wrote:
> Joachim Thiemann wrote:
>>
>> ? I have an old MFM drive (MiniScribe 8425) hooked up to a Xebec
>> 1210C 8-bit ISA controller, pulled out of my Amiga 1060 sidecar,
>
> [...]
>
>> I can get a hold of a 1998-era PC, mainly PCI but
>>
>> still with a single 16-bit ISA slot - but I have no idea if there is
>> any software that can then get the bits off the drive.
>
> There are a few things I'd be worried about here...
> ?- You need to know what parameters were used when formatting the drive.
> Usually these will be the ones printed on the drive label (or in the
> instruction book) but sometimes e.g. the cylinder count is reduced to get
> around bad cylinders, and so on.
That may be a difficult bit. All documentation - if there ever was
some - is long gone. The Amiga and Sidecar have been through many
moves, and was last used sometime around 1993/4 when it was replaced
by the A3000.
> ?- As it's an 8-bit card, it should work fine in a 16-bit ISA slot. Problem
> is, it may well conflict with the motherboard's onboard IDE controller (if
> it has one, which is likely). At the very least you'll need to configure the
> Xebec card as a secondary controller, then turn off the secondary IDE
> controller in the BIOS.
I found a page describing the jumpers for the controller by googling
"Xebec" and the assembly-number (104866 or something, I don't have it
in front of me) so moving the address is certainly an option.
>> ISTR that the
>>
>> xd driver in linux was broken or removed, or is the card WD100x
>> compatible?
>
> It's still in the 2.6 kernel source... No idea if it works, but in any case
> you'll probably have to build a custom kernel to use it (I'll bet most Linux
> distros won't compile it in by default).
I was asking since a google returned a message on the kernel
developers list (199? timeframe, 2.0 kernel) complaining about the
nonfunctional xd driver and suggesting it'd be removed in future.
I still have a set of original RH5.2 install CD's I'll check those
once I find them :-)
>> Will the 8-bit BIOS on the card
>> work in a Celeron class machine?
>
> Should do. Worst case, pull the EPROM chip or flip the ROM_DISABLE jumper.
>
>> If somehow I find a sufficiently old
>>
>> PC, how can I get the data off the non-MS-DOS partition?
>
> $ su -
> # dd if=/dev/hd(whatever the Xebec comes up as) of=/root/hdd_image
>
> Then copy hdd_image off onto another (faster) machine for processing.
I was actually assuming the way to get this drive working was to find
a 8086 class machine (thus it'd be the primary controller) - so dd
would not be an applicable command; then somehow use DOS either from
the 5Meg partition (that should still be there if the drive kept all
its bits in place) or a floppy to somehow dump the raw HD bits off.
Yes, dd would be nice, but that assumes a 32-bit machine with a driver
for the card. That is my concern.
Hmmm, maybe an old Minix system could talk to the card :-) od the raw
device to the serial port, then capture the octal data and reassemble
the image file...
Joe.
--
Joachim Thiemann :: http://www.tsp.ece.mcgill.ca/~jthiem
From n0body.h0me at inbox.com Tue Oct 6 11:20:34 2009
From: n0body.h0me at inbox.com (N0body H0me)
Date: Tue, 6 Oct 2009 08:20:34 -0800
Subject: HP/UX 9.x (Was: DEC and HP hardware to go in Europe)
In-Reply-To: <3187f0030910060635wa7bcdf2h5c3b1686187facb6@mail.gmail.com>
References: <4ac8cf8e.8000900@bitsavers.org>
<3aa626f2dbe.000003f9n0body.h0me@inbox.com>
<02118665d76c4cb6b1ba373ee3851852@xp1800>
<41094a2c5c8.000009c5n0body.h0me@inbox.com>
Message-ID: <47502E29932.000003F5n0body.h0me@inbox.com>
> -----Original Message-----
> From: auringer at tds.net
> Sent: Tue, 6 Oct 2009 08:35:36 -0500
> To: cctalk at classiccmp.org
> Subject: Re: DEC and HP hardware to go in Europe
>
> On Mon, Oct 5, 2009 at 11:21 PM, N0body H0me
> wrote:
>
>>
>> Hmmm, I'm wondering about this. I have a GPIB drive that goes
>> with my 370 that has HPUX 9.x, but I have neither passwords nor
>> install media. I may have to stick with *BSD. I suspect HP
>> is pretty watchful over their IP.
>>
>
> It isn't HP you have to worry about any more, it is TAMS that sells HP-UX
> 9.10 for the Hp 300 series of computers. $1800 for a 2 user license.
>
> http://www.tamsinc.com/hpux/hpux910.htm
>
> -Jon
Oh, so TAMS actually owns that IP, then. That's interesting, I
would have thought HP would have used what I call the 'Scorched IP'
approach, kinda like:
"Sorry, you can't have that version, it's no longer supported. It
is not freely available, we will not make it freely available, and
we will hunt down and kill anyone who illegally distributes or attempts
to distribute it."
Seriously, though, $1800 is a bit rich for hobbyist use, but I suspect
that price reflects the fact that there's probably *alot* of ATE based
on that platform that's still in use (somebody correct me if I'm wrong).
A good solution can still do the same job a decade (or more) from
now . . .
____________________________________________________________
FREE 3D EARTH SCREENSAVER - Watch the Earth right on your desktop!
Check it out at http://www.inbox.com/earth
From classiccmp at philpem.me.uk Tue Oct 6 11:54:25 2009
From: classiccmp at philpem.me.uk (Philip Pemberton)
Date: Tue, 06 Oct 2009 17:54:25 +0100
Subject: "Imaging" a MFM drive?
In-Reply-To: <4ACB6B52.1060608@bitsavers.org>
References: <4affc5e0910060726v44b2c169ic7187b9ac0c87896@mail.gmail.com> <4ACB5715.4080701@e-bbes.com>
<4ACB6B52.1060608@bitsavers.org>
Message-ID: <4ACB7641.9050309@philpem.me.uk>
Al Kossow wrote:
>> If you don't succeed, and can wait, we just got our boards in from
>> assembly. We made an (hopfully) universal MFM reader/writer/emulator.
>> But as usual, we are still fighting software issues. Not even an idea,
>> when we will be ready for user data.
Interesting. I'm doing basically the same thing.
Just found out this morning that almost the entire disc reader logic
module was unstable -- it passes testbench perfectly, but won't work in
hardware. Seems to be a fairly simple issue, but I've gone back to
getting the drive stepping / status readback working over USB and adding
some "fast register access" functions to the microcontroller first.
The RAM read/write and USB stuff works really nicely, though. So
basically I have a 512Kbyte, USB-interfaced SRAM :)
> I had been wondering this weekend if a Catweasel had high enough timer
> resolution for a ST-412 era data stream.
I did some back-of-the-envelope calculations a while ago --
An ST412 will allow a maximum of 5e6 flux transitions per second.
1/5e6 = 200 nanoseconds between two flux transitions (worst case)
The Catweasel's clock oscillator is switchable between:
- 7.080MHz
- 14.161MHz
- 28.332MHz (Mk3 and Mk4 only)
Which gives a timing resolution of:
- 7.080MHz -- 141.2429 nanoseconds
- 14.161MHz -- 70.6165 nanoseconds
- 28.332MHz -- 35.2958 nanoseconds
None of these are factors of 200ns, even if we ignore the fractional
part; thus any measured timing values will be subject to a fair amount
of jitter (around the 1-2 clock cycles mark). This would probably be
masked by the inherent inaccuracy of the drive's spindle motor, though.
Taking the coding into account, standard MFM has a minimum of 1T (200ns)
and a maximum of 2T (400ns) between two transitions -- there's also the
possibility of a 1.5T (300ns) delay between transitions. Using the
fastest clock rate (28.332MHz)...
- At 1T, you'll get a count of 5.6664. The CW can't count in
fractions, so you'll see a count of 5.
- At 1.5T, you'll see a count of 8.4996. The fraction is dropped,
leaving a count of 8.
- At 2T, you'll see a count of 11.3328. Again, the fraction is
dropped, thus you see a count of 11.
Decoding this would be possible, but wouldn't leave much room for error.
If you had a "late" transition followed by an "early" transition, the
difference in counts between two transitions could be as little as one
clock. Even if the gap was wider, it'd still be hard to say with 100%
certainty "this is a 01 sequence" or "this is a 001 sequence".
I'm using a 40MHz primary clock reference in my disc analyser for a few
reasons:
- It makes the math easy. 40MHz = 25ns per count.
- 25ns is an integer factor of the bit-cell sizes and transition
periods used on floppy discs. It also ties in nicely with the transition
rates used on MFM HDDs, assuming you don't want to write back to the drive.
The 25ns resolution of a 40MHz oscillator gives a 1T count of 8, a 1.5T
count of 12, and a 2T count of 16. Even with a worst-case jitter of 2
cycles, you still have a 2-count gap between the two ranges.
However, the FPGA has an on-board PLL -- you can multiply the reference
clock by just about any factor you like. Increase it to, say, 160MHz and
you get a much better margin (though your transition rate is still
limited to the speed of the RAM and the master clock).
If you wanted to write back to the drive, you'd need to handle
precompensation, which would involve increasing the clock rate (the
ST412 and ST506 precompensation value is 12ns according to the OEM
Manual). Unless, that is, you were trying to build a Write-Only Memory... :)
--
Phil.
classiccmp at philpem.me.uk
http://www.philpem.me.uk/
From classiccmp at philpem.me.uk Tue Oct 6 12:10:13 2009
From: classiccmp at philpem.me.uk (Philip Pemberton)
Date: Tue, 06 Oct 2009 18:10:13 +0100
Subject: "Imaging" a MFM drive?
In-Reply-To: <4affc5e0910060917w15318234p88238dd55a11d9d1@mail.gmail.com>
References: <4affc5e0910060726v44b2c169ic7187b9ac0c87896@mail.gmail.com>
<4ACB676B.4070403@philpem.me.uk>
<4affc5e0910060917w15318234p88238dd55a11d9d1@mail.gmail.com>
Message-ID: <4ACB79F5.2090604@philpem.me.uk>
Joachim Thiemann wrote:
> That may be a difficult bit. All documentation - if there ever was
> some - is long gone. The Amiga and Sidecar have been through many
> moves, and was last used sometime around 1993/4 when it was replaced
> by the A3000.
Ouch...
In any case I'd try the "standard" parameters first. I do wonder if the
controller has its own onboard store for the disc parameters, which
would mean you didn't have to bother trying to figure them out.
Actually, If the partition table is DOS/PC standard, the C:H:S of the
drive should be stored in CHS 0:0:0... (I spent far too much of my life
doing low-level programming on DOS boxen :P )
> I found a page describing the jumpers for the controller by googling
> "Xebec" and the assembly-number (104866 or something, I don't have it
> in front of me) so moving the address is certainly an option.
Actually, I just found this:
Which implies that the drive type is set by jumpers on the Xebec board.
So you probably won't have to figure out the C:H:S mappings manually,
assuming the jumpers are set properly.
> I was asking since a google returned a message on the kernel
> developers list (199? timeframe, 2.0 kernel) complaining about the
> nonfunctional xd driver and suggesting it'd be removed in future.
Well, either someone's fixed it, or it's been left in the source tree
and removed from the kernel config system (make menuconfig).
> I still have a set of original RH5.2 install CD's I'll check those
> once I find them :-)
That should work pretty nicely... assuming the chipset on the PC doesn't
do/need anything weird.
> Hmmm, maybe an old Minix system could talk to the card :-) od the raw
> device to the serial port, then capture the octal data and reassemble
> the image file...
That's one way to do it, I suppose. I'd sooner use Xmodem (which CRCs in
and outbound data) but I guess that's just me... :)
--
Phil.
classiccmp at philpem.me.uk
http://www.philpem.me.uk/
From aliensrcooluk at yahoo.co.uk Tue Oct 6 12:18:06 2009
From: aliensrcooluk at yahoo.co.uk (Andrew Burton)
Date: Tue, 6 Oct 2009 17:18:06 +0000 (GMT)
Subject: Tetris (on buildings)
Message-ID: <469151.86976.qm@web23401.mail.ird.yahoo.com>
Hi,
Although this video is old (uploaded to YouTube Jan 2007) I thought I would mention it. (I didn't get any hits when searching for "Tetris" in the archives)
"Brown's University fourteen-story Sciences Library transformed
into a giant video display which allows bystanders to play a game of
Tetris which can be seen for several miles."
http://www.youtube.com/watch?v=tkIRWoo9qrU
It's a shame that there's no sound, or music, but it's pretty cool nonetheless.
Regards,
Andrew B
aliensrcooluk at yahoo.co.uk
From cclist at sydex.com Tue Oct 6 12:24:52 2009
From: cclist at sydex.com (Chuck Guzis)
Date: Tue, 06 Oct 2009 10:24:52 -0700
Subject: "Imaging" a MFM drive?
In-Reply-To: <4ACB7641.9050309@philpem.me.uk>
References: <4affc5e0910060726v44b2c169ic7187b9ac0c87896@mail.gmail.com>,
<4ACB6B52.1060608@bitsavers.org>, <4ACB7641.9050309@philpem.me.uk>
Message-ID: <4ACB1AF4.1435.F96201B@cclist.sydex.com>
On 6 Oct 2009 at 17:54, Philip Pemberton wrote:
> If you wanted to write back to the drive, you'd need to handle
> precompensation, which would involve increasing the clock rate (the
> ST412 and ST506 precompensation value is 12ns according to the OEM
> Manual). Unless, that is, you were trying to build a Write-Only
> Memory... :)
I'd recommend one of the common fixed-point DSPs. Many of these have
one or two serial channels that can run at very high rates and
feature DMA into large memory spaces.
To keep costs low and development simple, I'd probably use a separate
uC for handling the control signals.
Floppy emulation can go with a simple uC, but fixed disks run at
least 10x faster, even though the amount of data per track is roughly
the same as a 1.44MB floppy.
--Chuck
From wdonzelli at gmail.com Tue Oct 6 12:30:58 2009
From: wdonzelli at gmail.com (William Donzelli)
Date: Tue, 6 Oct 2009 13:30:58 -0400
Subject: Tetris (on buildings)
In-Reply-To: <469151.86976.qm@web23401.mail.ird.yahoo.com>
References: <469151.86976.qm@web23401.mail.ird.yahoo.com>
Message-ID:
> Although this video is old (uploaded to YouTube Jan 2007) I thought I would mention it. (I didn't get any hits when searching for "Tetris" in the archives)
>
> "Brown's University fourteen-story Sciences Library transformed
> into a giant video display which allows bystanders to play a game of
> Tetris which can be seen for several miles."
>
> http://www.youtube.com/watch?v=tkIRWoo9qrU
>
> It's a shame that there's no sound, or music, but it's pretty cool nonetheless.
Back in the late 1980s, a classmate of mine that was interning at
Johnson Controls in Milwaukee tried to do this, but the lights were
just too sluggish for any sort of decent gameplay. Once seeing this,
he gave up on the idea, pretty much stillborn.
I think most engineering schools at the time had someone like him with
the same "Tetris building" idea, but most (all?) gave up or ran into
time limits. It would be interesting to see who managed this hack
first.
--
Will
From mloewen at cpumagic.scol.pa.us Tue Oct 6 12:40:55 2009
From: mloewen at cpumagic.scol.pa.us (Mike Loewen)
Date: Tue, 6 Oct 2009 13:40:55 -0400 (EDT)
Subject: Tetris (on buildings)
In-Reply-To:
References: <469151.86976.qm@web23401.mail.ird.yahoo.com>
Message-ID: