> > I still have a Tandy 1000 with monitor and printer, several IBM XTs
> > and IBM ATs, some Corona luggables, and some Compaq luggables.
>
> To help move them along, the Tandy 1000 is an interesting
> machine. I'm not sure about the straight 1000 model, but
> variants of the 1000 have DOS and even DeskMate (Tandy's
> windowing environment, which I believe was a tailored version
> of early MS windows) in ROM. Original IBM PC XT and AT
> machines are getting difficult to find (especially ATs, which
> it seems weren't produced in the same numbers as earlier
> models) and the Corona's are significant because IBM
> successfully sued them for copyright infringement for
> basically copying the ROM code verbatim and using it in their clones.
Where are these? I'm in the market for a PC, PC/XT or PC/AT. Also
looking for a Compaq Portable III.
>
>Subject: DECD Unibus Music board?
> From: "Joe R." <rigdonj at cfl.rr.com>
> Date: Mon, 20 Jun 2005 17:59:37 -0400
> To: cctalk at classiccmp.org
>
> I found one of these today. Can anyone tell me anything about it?
>
> Joe
Interesting. I have a Qbus sound board, AKA gigilo. Wonder if
they are similar. Mine has two GI sound chips.
Allison
I'm looking for a drive for my PDP-8 but I don't want something the
weight and size of a RK-05. I also have several DSD-440 drives available to
me. Does anyone know if these can be used on the PDP-8 or have any
experience with them? Does anyone know what kind of controller they need
when used in the 8? Or does anyone have a suggestion about what other
drive can be used with the -8? I realize that the DSD-440 or other drive
may not be original for the -8 but I just don't want to deal with something
the size, weight and unreliability of a RK-05.
Joe
And I will still endeavor to take care of the PDP-10 software
archives, the DECUS PDP-11 and PDP-10 collections, etc. It's been
years since any software was donated to those archives so I haven't
put a lot of effort into them. But it's good to know that there a
are a couple of PDP-10's around the world that are now usefully
"up" thanks to the archives.
--
I need to see about completely cloning trailing-edge. There were a few
cgi scripts there that made using wget difficult when I tried to copy
it to bitsavers.
I've made a few attempts to break into the professional archiving
world w.r.t. digital media, but so far I've been universally ignored.
Of course, those who ignore me would rather just talk about the
problem rather than solve it. So maybe that's why I don't register
on their radar. You have seen and probably will see me rant and
rave on this subject occasionally!
--
Given another 10 years it won't be an issue, since after the next
round of corporate failures/mergers there won't be any old software
to recover, and as you've discovered, people don't seem to be very
concerned about recovering/preserving what exists now.
I've been ranting for a while now that people are saving the iron,
but not the software that ran on it. It's surprising how little is
even left from late 60's IBM 360s (incl the systems themselves),
which was the most popular large computing system, and how MUCH has
been saved from DEC (thanks to the efforts of collectors and CHM).
I'm starting to think that there is going to be a pretty strange
view of computer software in the future, since there is so MUCH
that was saved from DEC, and almost nothing from Burroughs,
UNIVAC, NCR, and Honeywell (the last member of the BUNCH, CDC,
seems to have a fair amount saved, though)
Does anyone know where I can find documentation and/or software for a Zax
ICD-378 Z80 in-circuit debugger?
Picked one up (for $15.00!) at the MIT Flea Market today.
Any leads appreciated!
Steve
>
>Subject: Re: PDP11/23+ goes on
> From: aek at bitsavers.org (Al Kossow)
> Date: Sat, 18 Jun 2005 13:30:01 -0700 (PDT)
> To: classiccmp at classiccmp.org
>
>
>> What is the "modern way" to get software into the PDP11?
>
>I use a ZIP drive and a Qbus MSCP disc controller.
>
>A software-only solution (though much slower) is to use the
>TU58 simulation software that is around
Trust me it's faster! I've run both. The software needs to run
at 19.2k or faster to be realistic.
Allison
On Sun, 19 Jun 2005 shoppa_classiccmp at trailing-edge.com (Tim Shoppa)
wrote:
Hi, Tim. Long time no see...
> And I will still endeavor to take care of the PDP-10 software
> archives, the DECUS PDP-11 and PDP-10 collections, etc. It's been
> years since any software was donated to those archives so I haven't
> put a lot of effort into them. But it's good to know that there a
> are a couple of PDP-10's around the world that are now usefully
> "up" thanks to the archives.
Yes, well I'm basically lurking as well. Most of the world ignore me, so I
tend to keep a bit to myself. I do have some new software that I could
contribute in the RSX world atleast, if you're interested.
Oh, and I don't know if you saw my mail on info-pdp11, but Magica (the
11/70) is occasionally online, but we've also moved all data to a
simulated PDP-11 which is online 24/7, including all accounts. That
machine in Mim.Update.UU.SE. Just send me a mail if you want in and have
forgotten your password.
For everyone else (who might not know this) Update is a computer club at
Uppsala University, who have been running a PDP-11/70 online for over ten
years with free guest accounts. Last year we had to stop running it full
time because of money cuts from the University. The machine is still
there, and just need to turn a key to be online, but it's at odd times
right now. So we received a donation from Dbit of a E11 license. So we're
finally back online with a PDP-11 running RSX full time. A guest account
exist, with the username GUEST, and password GUEST.
If people don't abuse it, it will stay this way. :-)
Johnny
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt at update.uu.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
I rarely post rescues, but this one was quite an effort, and I must thank
Dan Cohoe for being such a great help.
This Saturday, Dan and I pulled a Hitachi AS/6 model 2 mainframe from a
well hidden junkyard in Ontario. The AS/6 is not complete - the memory
(storage) and some I/O is missing, but the basic processor is
intact, albeit a bit grungy.
The AS/6 was a IBM S/370 clone, made in the late 1970s to compete with the
303x line of machines from IBM. According to some old mainframers, the
machine was roughly equivalent to an IBM 3031, or as another put it, an
S/370 model 168 with "crap channels".
Four cabinets were removed - all five feet tall, the first is a standard
30 inches long, and basically contains the front panel and a floppy drive.
The next two cabinets, both 60 inches long, contain the processor. The
third cabinet, also 60 inches long, contains the channel to channel
adapter plus the interconnects to the long departed memory and I/O "wings"
(the AS/6 was originally an enormous T shaped machine).
Each cabinet is quite full, each with three-deep gates (swingout
cardcages). The boards are fairly small, and are made of mostly stock 10K
ECL chips. The power units are 415 Hz fed, of course.
I have no documentation, so the chances of getting this running are
extremely slim. Everything is fairly well marked, and the small boards are
not horribly hard to trace, but such an effort would likely take
years. The lack of the memory box is not a huge deal - the AS/6 had only 8
megs, although it probably is quite wide, and may have had several
independed banks for faster fetches. The lack of I/O is more of a concern
- it is hoped that some channel hardware is intact. Also, the lack of the
microcode floppy is bad, but there is always hope.
Also rescued was a full string of ca. 1972 3330 Merlin disks (DASDs).
These are all in poor condition, and may never run again. A 3505/3525 card
reader and punch combination was also pulled out. These will need to be
rebuilt, but very likely will run again.
William Donzelli
aw288 at osfn.org
