Is there any problem with data stored in a garage when the temperature drops
to -20? I just found out where my moved a bunch of my machines (Cromemco,
nabu, pets, Tandy's).
Any precautions to take when moving them back indoors?
Mike
--
Ottawa, Canada
Collector of vintage computers
http://www.ncf.ca/~ba600
I came into a big load of 5.25" floppies today. Almost all are Apple
related, but there are 2 boxes labeled "Digital". The only disk in these
boxes that are labled says:
RSX Mini-SYS V4.6
RSX-11M V4.6
03/23/92
I thought that looked interesting. Is there any sw that can read these
under Win32 or Linux? I don't have any DEC hw but was interested to see if
most of these disks are blank or if they might have anything of interest on
them.
dc
>> Complete Epson Equity I+ system, monitor, keyboard, system unit. All epson
>> brand original set. Haven't opened it up but I suspect it's an 8080 or such,
>> 360K floppy. Cute stylish setup.
>
>I believe that it is a DOS machine - possibly 286.
I had an Equity II and it was an 8088 IIRC, so I would think the Equity I
was probably an 8086, with maybe I+ being an 8088 (or maybe still an
8086). I can't confirm specs on the Equity II anymore as I sold it to
someone on this list long ago (but I know it was either an 8088 or an
8086)
-chris
<http://www.mythtech.net>
Does anyone have scans of the schematics for the Attache,
particularly as it relates to the keyboard? I know I paper schematics
in my warehouse, somewhere, but I can't seem to turn them up.
--jc
> -----Original Message-----
> From: Mike Gemeny
> Sent: Tuesday, January 20, 2004 9:14 PM
> To: cctalk(a)classiccmp.org
> Subject: HP2000/Access - benchmarks
>
> Jay wrote,
> >BTEST ran in 1 Min 37.5 sec
> >FPTS9 ran in 1 Min 23.1 sec
> >
> >Main CPU is a 2100A w/32K core.
>
> Thanks very much! This will help us to know if we are running faster or
> slower then a real system under simulation on various hardware and OS platforms.
>
> >I'm wondering how they got the timings listed in the source comments?
>
> I added the comments to paraphrase the surrounding text in the "E" IMS PDF.
> I too wonder how they got the numbers, but I didn't want to make any substantive
> changes to the code.
>
> >The difference wasn't HUGE,
> >but it was pretty noticeable. I suspect the 21MX-E would be even more so, and
> >plus you have the option of several different types & speeds of memory.
> >Hopefully we can find out!
>
> I hope so too. Not many systems were 21MX-E, but as I recall, GMU was and it was reported that it was quite noticeably faster.
>
> >{my emulator} emulates not just a CPU, but a whole
> >computer room full of separate (or connected) HP systems, printers, etc.
>
> Just for the record SIMH does too, it now has all of the peripherals required to run Access.
> You should take it for a spin, just explode the ZIP on a Windoz box and run Access.bat and you should get
> the "MAG TAPE SELECT CODE?" questions. (Its 16 for the zip)
> The disk images in the ZIP are pre-loaded with a system, just select the 2883 loader
> and answer the questions in the dialog to do a disk boot and your up. You can telnet to your box and log in.
> It's a good quick way to take "E" or "F" for a spin too; we have separate ZIPs for each.
>
> >> How much disk are you running?
>
> My recollection is that the 7900 is 2.5 Meg words or 5 Meg bytes, and that the 7905 is 7.5 Meg words or 15 Meg bytes,
> feel free to offer information to the contrary.
>
> As for the real equipment you may have surplus, count me in!
> I have 2 racks, several tape drives, a paper tape reader, and an MX that I have not powered up.
> I also have the hard to find stuff like micro-code, MUX, interconnect kit, bootstrap tapes and MCP tapes.
> I would rather have the racks with the step, 2100 CPUs, and a couple of 7900s, but beggars can't be choosers.
> I would not turn down a 7906 but I would have to find a controller.
> I would also need to find tape controllers and some of the cables.
>
> Keep us posted,
> Mike.
>
>
>
At 2004-01-23 10:32 AM, Mike Gemeny wrote:
{snip}
> > I hope so too. Not many systems were 21MX-E, but as I recall, GMU was
> and it was reported that it was quite noticeably faster.
Yes, GMU had an HP 2000 ACCESS system with 21MX-E processors, 7920 disc (50
MB of which the ACCESS operating system could only address the first 33
MB), 32K WORDS of RAM in each processor, 32 MUX ports, SYNC card (for RJE),
7970 1600 BPI tape, and an HP 2640B terminal as the console.
I was the system manager for the GMU HP 2000 from its delivery in August,
1978 until I left GMU in January, 1984. At the time we received the system
(August, 1978), we were told that our system was one of the last two off
the assembly line - how accurate that claim was, I don't know.
At one time GMU had the HP 2000 ACCESS source code, operating system
manuals, patching instructions, etc. I used the source code and manuals to
patch the ACCESS OS we used. The patch made using the HP 2640B terminal as
the system console a much more pleasant experience. Basically, it changed
the normal console backspace from a backspace and underscore to a backspace
and a bell (a one byte patch).
At various times we had to limp along with a 2100 processor while repairs
were made to our 21MX-E processor. Many years have gone by, but I remember
the 2100 as being VERY much slower. Was the 21MX-E twice as fast? Three
times as fast? I can't say - too many years have gone by.
{snip}
> > >> How much disk are you running?
> >
> > My recollection is that the 7900 is 2.5 Meg words or 5 Meg bytes, and
> that the 7905 is 7.5 Meg words or 15 Meg bytes,
> > feel free to offer information to the contrary.
I believe that is correct. GMU had a single 7920 50 Mb disc, but HP custom
formatted it for use by the HP 2000 ACCESS. If I remember correctly, a
disc diagnostic/utility program (which I think was called SLUTH) was used
to configure the drive. I'm guessing that the drive was formatted as
having a total of 65,535 sectors, which is approximately 33 Mb.
Question: How are the 7905 and 7906 discs you are using formatted?
{snip}
> > Mike.
> >
> >
> >
John
*** When replying to this message, please do not delete these ***
*** signature lines. Otakon Katsucon HP3000-L @classiccmp.org ***
Hi All,
I checked out the SF200 this morning. I was pulled out of service in
working condition. I contains three (3) of the "cannisters" RF72's?
that contain 4 DSSI disks each. I believe the each disk had a 1.2-2GB
for a total capacity of 14-24GB. It looked like all the cabling was
complete in the back. It also contained a power conditioning unit.
Someone has already looked into the shipping for this, and it appears it
will cost about $300 to ship it back east from Tucson, Az.
If I can get the unit for "real cheap" I'll get it, and keep it for someone
who might want to trade some stuff for it.
Cheers
Tom Ponsford
> Tom Ponsford wrote:
>
>> It's a beast, but unfortunatly no Vax to go with it :-( Still if you
>> want lots o' DSSI storage?
>>
>> It will probably go "really cheap", unless one of the usual bidders
>> already has a buyer for it.
>>
>> I'll see it first-hand on Monday and will know what is really in it.
>> It goes to auction on Tuesday.
>>
>> pictures:
>>
>> http://w3.arizona.edu/~pacs/surplus/public/sale/P0127047.jpg
>> http://w3.arizona.edu/~pacs/surplus/public/sale/P0127042.jpg
>>
>> Tom
>> _______________________________________________
>> rescue list - http://www.sunhelp.org/mailman/listinfo/rescue
>>
>
Some of this is total junk, some is "good stuff". Here's the list:
Narrow Carriage Dot Matrix printers (all believed working, good shape)
Star NX-2430 Multifont
TI Omni 800 855 w/font cartridge
Star NX-1001 Multifont
Epson LX-850
Honeywell Bull Miniature inkjet - about 2 inches tall, 8 inches wide, 5
inches deep. Centronics IF, Cute!
Viva Modem 24 (little tower, no PS)
Dell Monitor, 14", model Vi1439U
Packard Bell Monitor, model PB8538SVGA
Complete Epson Equity I+ system, monitor, keyboard, system unit. All epson
brand original set. Haven't opened it up but I suspect it's an 8080 or such,
360K floppy. Cute stylish setup.
Misc PC cards:
16 bit ISA multi I/O card (2 serial, 1 parallel, 1 joystick, floppy, and
ide)
16 bit ISA linksys etherlan16 network card
16 bit ISA VGA (JAX TVGA8900)
8 bit ISA Sound Magic (several creative labs chips)
Last but not least... can't believe I'm going to let this one go, but it
needs a better home. I have a Corona Data Systems PPC400-12. Probably one of
the first portable PC's. Complete setup with keyboard inside the cover, a
manual or two. Can someone make a trade offer for this one? I'd like to get
something for it.
Other than the PPC, all the above is available for cost of shipping rounded
up to the nearest dollar. For the PPC, make offer - mainly I just want it to
go to a good home. Anything there's no takers for within a day or two goes
to the dumpster (except the PPC I'd hold on to).
Regards,
Jay West
I'm still looking for the monitor/3k basic interpreter
eproms for my Cromemco SCC s100 card. Actually, all I
need is the firmware dumps. I'll burn my own.
Also, in an earlier post I stated they were part #
MCB-416. I should have said MCB-216. According to
the manual they are individually numbered MCB-216-0
and MCB-216-1.
Thanks,
Joe
__________________________________
Do you Yahoo!?
Yahoo! SiteBuilder - Free web site building tool. Try it!
http://webhosting.yahoo.com/ps/sb/
