I found a rather interesting machine today at a local thrift
store. It is an IBM PS/2 Model P70. Normally I don't pick up IBM
PC's or clones, but this has the following:
- luggable, roughly the size of a large breifcase
- 80386 running at 20mhz
- red gas-plasma VGA display
- one 16-bit MCA and one 32-bit MCA expansion slot
- 120meg IBM ESDI hard disk
- 4meg RAM
- parallel, serial, PS/2 mouse, VGA, and unknown HDI-30
connector on the rear.
Unfortunately, it lacks it's keyboard, which isn't connected
by way of the standard PS/2 connector. It won't boot past the memory
test due to the lack of keyboard and it gives me POST error codes of
301, 162 and 163 on the screen, as well as beeps twice. Does anyone
know what the square 30pin connector on the rear panel is? It
reminds me of the HDI-30 SCSI connector found on some Powerbooks.
I picked it up because I thought a portable Microchannel
machine with a gas-plasma VGA screen was pretty interesting. Not to
mention it's the only MCA machine I have.
Jeff
--
Power Computing PowerCurve, 400mhz G3, Mac OS 9.0.4
Collector of Classic Microcomputers and Video Game Systems:
http://www.geocities.com/siliconvalley/lakes/6757
From: Richard Erlacher <richard(a)idcomm.com>
>> From: Richard Erlacher <richard(a)idcomm.com>
>>
>>
>> Use the editor that comes with the mailer, please.
>>
>
>What???
Unless your system is severely crippled your Email has an
editor that will allow your to strip the excess non relevent text.
Try it, make it easier to read on the other end.
>> I havent a clue why you said that at all since the origin of the
smallc-c
>> compiler is 8080? I still have the original DDJ articles with
sources.
>>
>What I said (I thought) was that I don't want to fiddle with small-C to
the
>extent of writing a new code generator for the 'HC11, 'HC05's,
805x-series,
>PIC, etc, since Hi-Tech already has a code generator for their compiler
for
No problem with that. But I thought the initial problem was testing a
bunch
of ISBC8020s? Where did all the other excess about other cpus come
into that?
>each of those. It would be a BIG job to do that for the Hendrix
compiler,
>reduced though it is, since what's needed is a general enough compiler
that
>once I write a debug monitor based on some existing model I already have
and
I wouldn't know, I did did the later version for Z80 with TDL opcodes.
>know. It's not enough that the 8080 and Z80 are already supported,
since
Also 8088 and maybe later.
>I'll only need to use the 8080, which, BTW, it's not obvious that the
>Hi-Tech 'C' supports. As I said, if I'm going to wander into the
quagmire,
I avoid the quagmire and use asm.
>the near future. I'm quite sure nobody is going to hire me to generate
code
>for the Z80 or 8080. I've been known to write code in assembler as
well,
>but haven't done anything for hire in about 10 years that has required
Z80
>or 8080 coding.
While I understand the desire it's all outside the scope of the original
problem to test and apparently use a bunch of 8085 multibus cards.
Oh, z80 is still out there as Z180, Z380 and Rabbit for embedded
apps and CPU library cores in gate arrays.
Allison
On Tue, 31 Oct 2000 15:46:41, Joe <rigdonj(a)intellistar.net> wrote:
>On Tue, 31 Oct 2000 12:25:34, Jeffrey l Kaneko <jeff.kaneko(a)juno.com> wrote:
>
>>On Tue, 31 Oct 2000 11:53:32 EST Mzthompson(a)aol.com writes:
>>
>>> ----------------------------------------
>>> 3) Sigma Information Systems
>>>
>>> This card appears to be a disk controller. It has 4 WDC TR1865PL
>>> controller
>>> chips on it and there are 4 ten pin header connectors on the card
>>> edge.
>>>
>>> Numbers:
>>> Assy 400200
>>> CPX-6-0
>>
>>This is probably a serial I/O card; the TR1865's are UARTS . . . .
>
>
>Jeff is probably right. Here's part of a message that I posted a month or
>so ago about a 11/23 that I have. It also has a Sigma Information Systems
>card in it and the card is connected the TT and LP0 ports. I didn't make a
>list of the chips while I had the card out. Sorry.
>
> Joe
>
> to On September 22, Joe wrote:
>
> <snip>
Thanks guys for the correction. In my haste to complete the list I saw
'WDC' and jump to the conclusion about being a disk controller. I did
not pause to look up the IC in the IC Master or any data books. Duh!
Although I removed the card cage and boards from the box, I did go
check and sure enough, the only ten pin connector goes to a DB25
coming out the back.
Again, thanks, and sorry 'bout that.
Mike
-----Original Message-----
From: Jeff Hellige <jhellige(a)earthlink.net>
To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org>
Date: Tuesday, October 31, 2000 10:24 PM
Subject: Re: CP/M 1.3 memory requirement
> I show that DR copyrighted CP/M in May, 1976. Around what
>time did they actually start shipping it and what was the first
>'usable' release?
>
> Jeff
There was 1.2 but usable is not what I'd call it. I'd say 1.4
was the first commercially viable version but, 1.3 was the
first complete working one.
Allison
HP SRMs (pre-Unix - will run HP BASIC) available
Some CPUs, some hard drives. All have HPIB ports.
Possibly some printers.
and
HP 340's (diskless) with ethernet, HPIB, serial, & parallel built in.
Will run Unix.
Your cost on any of these would be shipping plus packing at Mailboxes,
Etc., plus $10 per item for us to haul them from the basement, put
them in our trailer and tote them to Mailboxes.
If you're interested, let me know ASAP, as they go to the scrapper on
Monday, 10/30/00 when the company's lease runs out. If you're
familiar with HP stuff and want details, please contact me. If you're
not familiar, I can't help you much, although I *can* read numbers
>from front panels if there's anything in particular you're looking
for. Just trying to save some good, old hardware from the shredder.
It's located in Lincoln, Nebraska, so if you're within driving
distance this weekend, we can probably arrange something to save you
shipping and handling.
Bill Richman
bill_r(a)inetnebr.com
http://incolor.inetnebr.com
Home of Fun with Molten Metal, technological
oddities, and the original COSMAC Elf
computer simulator!
From: Jeff Hellige <jhellige(a)earthlink.net>
> CP/M On North Star Disk
> Copyright 1977 Digital Research
> Copyright 1977 Lifeboat Associates
> Version 1.30 Serial No. 14-040
>
> Jeff
Thats a find. I'd assume it want 4k more than base 1.3 due to the NS*
drivers
and the way Lifeboat did it. so 20k should do and with say 48k your
covered.
Allison
Hi
Bought several XM3301B Toshiba CDROM drives very cheap.
(I am looking for some caddys by the way...anybody got some they wanna throw out?)
Trying to use these on old compact MACs and MAC IIs using Mac OS 7.5.5
Used a driver that sees cdrom drive (icon with scsi id for drive appears on os startup) as soon as iso9660 format cd is inserted, it reports that it cant read the disk, it reports the size of the data used up on disk and asks if I wanna format it or eject it...
All support files are in the extensions folder (high sierra, foreign files acces...etc...)
I am using a driver that says it supports the xm3301 is the readme file. (something from lacie company...off a www page with older MAC drivers.)
I have tried apple generic cdrom support. Does not see the xm3301b. (whats the b for anyways?)
I have used a newer Pionner scsi cdrom with pionner driver on the same system with success.
The newer pionner drive with same driver/support file does same thing....
This must be something simple I cant see...but I am no MAC OS expert...
Thanks for reading
Claude
On October 31, Don Maslin wrote:
> > The 5360, as well as the 5340 (S/34), are 220 volt single phase (actually
> > 2-phase if you want to be exact). The way I hook mine up is to open the
>
> Oh? What is the phase shift between the "2-phase"s? Isn't it really
> just 220 volt center tapped?
180 degrees, if your feed is 220v 2-phase. If you have 3-phase power,
you'll likely be feeding a breaker box from two of the three phases,
which would then be 120 degrees apart. That would, I believe,
technically be 208v, not 220v.
It wouldn't really be 220v center-tapped, though, at least not the
way I'm used to thinking about it.
-Dave McGuire
On October 29, ajp166 wrote:
> > I explained that I was running a Z80-based general-purpose computer
> >fifteen years ago (an IMSAI with a CCS Z80 CPU board which I still
>
> Late adoptor? the first Z80 for me was 1977 (january), NS* running
> at the astronomical speed of 4mhz. That makes that board 23.8
> years old.
Well, I suppose it was more like seventeen years ago...I was
thirteen...
> >have) as my main machine, and that the Z80 processor was a
> >general-purpose machine that was very popular in the 70s and 80s...and
> >was definitely nothing "new".
> >
> > Know what? HE DIDN'T BELIEVE ME!!
>
> Caution clue LART in use. I'd have smacked him in the snout with a
> rolled up Zilog data book, Ca 1976.
I'll be showing him mine next week. :)
> > So, yes, folks...the Z80 seems to be gearing up for a second
> >life...this time as an embedded processor. There are many variations
>
> No, its been there for the last, oh 15 years doing that.
Of course, but now it's *only* doing that, mainstream-wise. I was
attempting to point out the shift in role from being a mainstream
general-purpose processor to being one used almost entirely for
embedded applications.
-Dave McGuire
