>I was digging through some S-100 cards and came upon a Godbout active
>terminator. Do all S-100 buses require external termination, or did
more
>have it built into the mobo? Specifically, do I need to stick this
card
>into my IMSAI?
>
It depends on what kind of motherboard you have. Typically, the
terminator was at the end opposite where the front panel or CPU card
plugged in. Early S-100 motherboards ran at only 2 Mhz (8080 CPU) or
2.5 Mhz (early Z-80) so termination wasn't quite so important. Later,
when speeds were pushed past 4Mhz the terminator became crucial to
reliability. Look at the back end of your motherboard, if you don't
see an array of resistors, about 90 or so, then put the Godbout board
in the very last slot, and your CPU card as close as possible to the
front slot, right behind the front panel.
I used one when I went to 4Mhz on the original 22 slot IMSAI
motherboard, it does help. After the IMSAI MB wore out I switched to
Thinkertoys and Godbout (later called Compupro) motherboards, they had
the terminator built in.
Jack Peacock
Picked up a nice little HP Series 100 Model 120 45600A and a few hundred
other numbers on the bottom... Anyways, it's a very interesting model.
Works fine, has two DB-25 ports(modem and printer, both serial?) and an
HP-IB port, and uses two small batteries that look like N size or close to
that. And a cute keyboard, lotso keys but very small. Anyways... Does
anyone know anything about it? I couldn't find anything on HP's web site,
and nothing showed up immediatley on web searches. What kind of terminal is
it? Are the ports normal RS-232? What does the HP-IB port do, and how do I
access it? So many questions... Too bad there was no manual. But then what
do you expect for $5? At least I got a keyboard...
--------------------------------------------------------------
| http://members.tripod.com/~jrollins/index.html - Computers |
| http://www.geocities.com/Area51/Lair/1681/ - Star Trek |
| Orham(a)qth.net list admin KD7BCY |
--------------------------------------------------------------
An RD54 is an oem version of the Maxtor 2190 disk drive. You might have
better luck looking for specs on that drive. AFAIK it is identical to
the RD54 except for the label DEC puts on it.
Jack Peacock
-----Original Message-----
From: emanuel stiebler [mailto:emu@ecubics.com]
Sent: Friday, July 24, 1998 10:00 AM
To: Discussion re-collecting of classic computers
Subject: ST506 & RD54
Hi all,
Where on the net, i could find the ST506 specification, or something
like a
RD54 OEM-Manual ?
thanks,
emanuel
John Rollins <rexstout(a)uswest.net> wrote:
> Picked up a nice little HP Series 100 Model 120 45600A and a few hundred
It's sort of a successor to the 125 and predecessor to the 150. It's
an HP2382 "Shadow" terminal housing with a CP/M computer (I think a
Z80 but I can't recall for sure) inside.
The HP-IB port would be used to connect to an external disc drive,
just like on a 150 and using pretty much the same 91xx disc drives. I
think I remember using one with a 9121D? -- the one with two
single-sided stiffies.
I can't recall whether it will play terminal without CP/M. I do
remember that in order to get it to play block-mode capable terminal
(so it could be used with View aka V/3000 aka VPLUS/3000) it needed
to boot CP/M and run a program, and vaguely recall that it could be
a not-block-mode-capable terminal without that program (and maybe
without loading CP/M).
One other thing I recall about it is that it had a precursor to PAM
(Personal Application Manager -- a primitive shell/application
launcher that later turned up on the 150, 110, some HP9000s, and the
Vectra) that was autostarted by CP/M immediately following boot. It
used function keys to start the applications, so you could only have
seven or eight defined for it to start.
The RS232 ports are probably DB25S connectors and I think they look
like DTE -- similar pinout to an IBM PC async card with a DB25P.
-Frank McConnell
Here is a message that I received today, I forward it to all you fellow
Commodore enthusiasts, if you are interested in some nice PET stuff (keep me
in mind for PET books and software, will ya?)
> Subject: PET disposal
> Date: Fri, 24 Jul 1998 11:05:38 -0600
> From: Sjoerd Schaafsma <rocklake(a)telusplanet.net>
> Reply-To: rocklake(a)agt.net
>Organization: University of Lethbridge
> To: foxnhare(a)goldrush.com
>
> HI Larry,
>
> I'm in Lethbridge Alberta, and would like to dispose of a few PETs,
> 4032, 8032, and disk drives, I just can't bring myself to junk 'em.
> Know of any interested parties?
>
>
--
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
Larry Anderson - Sysop of Silicon Realms BBS (300-2400bd) (209) 754-1363
Visit my Commodore 8-Bit web page at:
http://www.goldrush.com/~foxnhare/commodore.html
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
> From: "Sie Raybould" <sie(a)systemfile.demon.co.uk>
> Subject: WTB: Jupiter Ace
>
> Anyone got a Jupiter Ace they'd be prepared to part with ?
>
> Sie
I just was reading in a book about a sinclair ROM replacement for FORTH that
sounds alot like the Jupiter Ace's features. Multi-task up to four programs,
etc. It was referred to the "FORTH in ROM by David Husband". Hope that helps any.
--
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
Larry Anderson - Sysop of Silicon Realms BBS (300-2400bd) (209) 754-1363
Visit my Commodore 8-Bit web page at:
http://www.goldrush.com/~foxnhare/commodore.html
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
Hi guys,
I just picked up a bunch of IBM power supplies at auction. The
auctioneer says they're for the 5140, but I don't know how you could tell.
They're all appear to be brand new and are in the original boxes. The
box is labeled "P/N 2684220", the Power supply "P/N 2684292". Output is
15v, 2.7A.
Anybody know what they're for? And if anybody wants one, the price is $5
shipped, each.
Tom Owad
--
Sysop of Caesarville Online
Client software at: <http://home.earthlink.net/~tomowad/>
I just got a funny cartridge for the early Commodore PC-10 and PC-20 series
computers. There 2 connectors, one plugs into the modem port and the other
into the printer port. Then power up the machine and a 2 digit alpha/numeric
HEX LED displays the problem. Commodore #380025-01.
Anyone have any info on this?
Rich Cini/WUGNET <nospam_rcini(a)msn.com>
- ClubWin/CW6
- MCP Windows 95/Windows Networking
- Preserver of "classic" computers
<<<< ========== reply separator ========== >>>>>
< Of course, this is a bit of a problem for people like me, who are too
< young for an IMSAI, never mind a PDP8
How is this a problem? You learned how to run a PC, programming a PDP-8
is at least an order of magnitude simpler. Seriously, the instruction
set and archetecture is so simple it's downright inviting. The DG Novas
are pretty straight forward too. The old machines didn't have to be huge,
complex or networked. They only had to work.
Allison
< Can I make use of the Centronics interface?
Yes with any current printer just like a PC, though the connector may be
different.
<What type of 'serial car' do you recommend?
Toyota, I've had good luck. Oh sorry, serial card, what ever you have or
can get. Jamco still sells apple][ cards and stuff.
< Can I use my Apple //c w/serial port but w/o CP/M?
Sure!
< >Apple ][ disks don't use standard FM or MFM encoding, so Macs and PCs
< can't
< >read them. If you can find a serial car for the Apple, the easiest wa
< >would be to get a copy of Kermit-65 (for DOS 3.3 files) and/or Kermit8
< >(for CP/M) and transfer the files over a serial link -- that's what I
or MDM, or one of a dozen others for each OS.
< >Kermit-65 comes with instructions on how to get it into an Apple that
< >doesn't already have any kind of file transfer software, and IIRC
< Kermit80
< >has some similar instructions. You can get Kermit by anonymous ftp
< from
< >ftp.columbia.edu, or http://www.columbia.edu/kermit/, or from any of
< >several mirror sites.
Kermit is well known and supported by most PC transfer programs.
Max, get an editor. Either that or don't use LYNX for mail, try elm or
pine.
Allison
< I assume you mean the apps. CP/M and DOS are fairly similar
Similar yes, processors are very different. Z80 code will not run on a
PC (without an emulator) and PC software is useless to cp/m z80.
< Why do you need an 8" controller? The same floppy controller can be
< used for both 5.25" and 3.5". There never were any jumpers for any
Why is the sky blue. If I need to read a 8" of course.
< In fact, I am not familiar with any real difference between PCI and
< ISA controllers. I have never had any floppy problems. The reason
Huge differce. also the Floppy controller is on the MB for most current
generation P-II PCs.
< edge connectors, unlike 3.5" which use BERG strips (is that what
< they're called?). This is the biggest problem one is likely to have.
Trivial problem. the cables have both. The real problem is when the
software goes to work or out to lunch.
Allison
At 02:47 PM 7/24/98 GMT, you wrote:
>>>From: Bill Kent <billakent(a)hotmail.com>
>>>My name is Bill Kent and I am working on a story for a major online
>>>publication. The focus is on users who use what others might consider
>>>"obsolete" technology. I would like to speak to a few users who use
>>>oder PCs (386 and below) for productivity apps. I'm talking about in
>>>business, education, or home. If you use them as servers or something
>>>else, that's super, I'd like to hear about it. I'm not interested in
>>>hobbyists who just enjoying hacking the machines. If it requires a
>>>soldering iron, it's too complex for this article.
Well, let's see. I use a Radio Shack model 100 (like many people) for
taking notes/writing away from home. Once I get my Starlet fixed, I'll be
doing the same with that (CP/M laptop, with Wordstar in ROM). I also have
an Outbound notebook (mac clone laptop ca. 1990) that I and my girlfriend
use.
She (Rachel Grilley, <auntierae(a)california.com>) also uses older macs in
her classroom to teach her first graders reading, math, science, etc. They
range from plusses to IIci's.
My voicemail system is currently running on a 286/512K/40mb system, but is
about to be upgraded Real Soon Now to a shoebox-sized 386sx system I picked
up recently at a surplus place. (Same VM card/software, just different
computer -- actually can run on an 8088 even.)
I have an Atari Portfolio (8088, DOS, size of a video tape) that I carry
around for taking notes.
I also use my Atari ST's and Falcons for music sequencing/recording.
(Well, not as much as I like, but once I win the lottery...) I can also
put you in touch with a lot of people who are using their ST's a lot.
And lastly, my main machine is a 486 laptop, but I have written a DOS-based
application to manage the San Francisco Free List (see
<http://www.sinasohn.com/freelist/> for more info) including maintaining
the database of events, building daily and monthly web pages, and
generating weekly event listings. Eventually, I'll probably move that onto
a different DOS-based laptop so others can assist in maintaining the events
database.
Anyway, feel free to drop me a note about any of the above (or anyhthing
else, for that matter).
--------------------------------------------------------------------- O-
Uncle Roger "There is pleasure pure in being mad
roger(a)sinasohn.com that none but madmen know."
Roger Louis Sinasohn & Associates
San Francisco, California http://www.sinasohn.com/
Of course, this is a bit of a problem for people like me, who are too
young for an IMSAI, never mind a PDP8
>I've used - and repaired - a lot of embedded control systems using
>machines like the PDP11, PDP8, Data General Nova, etc. These machines
>work as well today as they did 25 years ago when they were made, they
>still do the same job running the same software. There is simply no
>reason to replace a reliable, documented solution with a modern
>undocumented one.
>
It's not quite the same. All PC components are third-party and thus
there is no guarantee it will work quite right. Are the
well-documented IBM PC, XT, and AT machines better in this sense?
Since you have the manuals, you could probably build your own MDA
card!
>Contrast that to the modern PC. If it fails, you swap boards until it
>works again, never really knowing that you've found the fault. And you
>don't know that the new video card (say) won't behave slightly
>differently to the old one. Seen it happen far to often to want to
depend
>on such a machine.
>
>Problem is, I'm an electronic engineer. So I tend to use computers -
>including old ones - to help with that work. And I'm not afraid of
taking
>a soldering iron to them.
>
>Case in point. 10 minutes ago I needed to examine the contents of a ROM
>chip - an obscure old ROM chip - from a word processing system I'm
>repairing. I've got a special card in an old IBM XT that'll do that.
Not
>hardware hacking per se, though - just a homemade tool to help with my
work.
>
>> >>I'd like to hear stories about how this technology can be applied
to a
>> >>job and does it well. The general slant of the article is to be
>> >>positive, but if anyone has any good stories about failures which
>> >>occurred because you can't do EVERYTHING with older technology.
>
>That is _very_ uncommon. A lot of old machines are in embedded control
>systems, which have been running the same program since they were made.
>They don't stop running it properly just because a new machine has come
>on the market...
>
>And anyway, CPU speed is often needed (for mainstream applications)
only
>to support the user interface. I personally have formatted and printed
a
>200 page manual using TeX/LaTeX on a 386 PC. A 286 would probably have
>done it just as well. TeX may not be user friendly for the new user,
but
>it certainly is friendly to the experienced user who wants a text
>formatter that doesn't get in the way.
>
>
>> >>
>> >>mailto:billakent@hotmail.com
>
>-tony
>
>
______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com
What kind of boards? Was it single-board or backplane or what?
Also, what are the key differences between Hp and PC?
>>I have a bunch of boards that I would like to move to a good home,
>>otherwise I will scrap them out. _ANY_ offers over shipping costs will
be
>>considered.
>>
>>Set of boards for an HP150 system! I am not sure what the processor
>>is
>
> Are you kidding! It's an 8088! It runs at 5 MHz MOL just like a PC.
>Some 150 even had the optional 8087. The 150 was one of those ALMOST
IBM
>PC compatibles. I have at least eight or nine of them and they're all
>working. Most of them are looking for homes. Hint, hint!
>
>(lots of HP house numbers, but I do see an 8041A and 9914A, neither of
>>which are the main processors). I have a motherboard with an jack for
an
>>RJ45 keyboard, HPIB connector, and two RS232 ports. I also have a
board
>>with lots of 4164 DRAMs, another with RAMs and ROMs, another mystery
>>board, and a module that says 3278 interface (HP #45641A).
>
> The 45641 is an optional 3278 Emulation board. It costs $1200 in the
'88
>HP catalog.
>
> If no one wants the boards, I'll take them for the cost of shipping.
>
> Joe
>>
>>William Donzelli
>>william(a)ans.net
>>
>>
>>
>>
>
>
______________________________________________________
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I assume you mean the apps. CP/M and DOS are fairly similar
>While I do some of it on PC, more over time there are things I can do
>faster and easier on the s100 crate or even the Kaypro.
>
I don't know
>I do, did you misread?
>
Why do you need an 8" controller? The same floppy controller can be
used for both 5.25" and 3.5". There never were any jumpers for any
MFM drives, nor have I seen much for IDE drives. This has nothing to
do with PCI or PnP. Just set the correct type in the BIOS and that's it
>Why the "if you can plug one in"? Will plug and puke really work?
What
>do you do if it doesn't? What slot does the 8" controller from the XT
>plug into on the PCI only board?
In fact, I am not familiar with any real difference between PCI and
ISA controllers. I have never had any floppy problems. The reason
why I said 'if you can plug one in' is because the 5.25" drives use
edge connectors, unlike 3.5" which use BERG strips (is that what
they're called?). This is the biggest problem one is likely to have.
>
>Keeping in mind I was referring to systems in place and working as they
>have for more years that M$ existed. Any bugs and the like have long
>since been worked out or are at least well known. For someone makeing
>steel parts or whatnot the OS, CPU and all that jazz really doesn't
>matter when his task is to punch holes in 500 pieces a day.
>
>Allison
>
>
______________________________________________________
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I almost forgot to post about this. I recently acquired a complete
Heathkit H89 system, with dual floppies and a small printer (OkiData
Microline 82, serial), all in excellent condition.
I got with it a bunch of manuals and floppies, among them CP/M boot
diskettes. As I recall, this is a Z80-based system, yes? Is it possible to
use a hard drive on it?
Thanks in advance.
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Bruce Lane, Sysop, The Dragon's Cave BBS (Fidonet 1:343/272)
(Hamateur: WD6EOS) (E-mail: kyrrin(a)jps.net)
"Our science can only describe an object, event, or living thing in our own
human terms. It cannot, in any way, define any of them..."
Can I make use of the Centronics interface? What type of 'serial car'
do you recommend? Can I use my Apple //c w/serial port but w/o CP/M?
>Apple ][ disks don't use standard FM or MFM encoding, so Macs and PCs
can't
>read them. If you can find a serial car for the Apple, the easiest way
>would be to get a copy of Kermit-65 (for DOS 3.3 files) and/or Kermit80
>(for CP/M) and transfer the files over a serial link -- that's what I
do.
>
>Kermit-65 comes with instructions on how to get it into an Apple that
>doesn't already have any kind of file transfer software, and IIRC
Kermit80
>has some similar instructions. You can get Kermit by anonymous ftp
from
>ftp.columbia.edu, or http://www.columbia.edu/kermit/, or from any of
>several mirror sites.
>
>
>--
>
>Pete Peter Turnbull
> Dept. of Computer Science
> University of York
>
______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com
On Jul 24, 13:57, Max Eskin wrote:
> Subject: Apple ][ file conversion
> Several months ago, I was given an A][+, with a z80 card and a bunch
> of program, as well as data, disks. It has a printer interface card.
> What is the easiest way to transfer the data on these disks (CP/M 3.3
> various programs, mainly Wordstar 2.x) onto a PC or mac? Is there a
> PC program that will read Apple CP/M disks? I couldn't easily do it
> with a Mac since these are 5.25" disks.
Apple ][ disks don't use standard FM or MFM encoding, so Macs and PCs can't
read them. If you can find a serial car for the Apple, the easiest way
would be to get a copy of Kermit-65 (for DOS 3.3 files) and/or Kermit80
(for CP/M) and transfer the files over a serial link -- that's what I do.
Kermit-65 comes with instructions on how to get it into an Apple that
doesn't already have any kind of file transfer software, and IIRC Kermit80
has some similar instructions. You can get Kermit by anonymous ftp from
ftp.columbia.edu, or http://www.columbia.edu/kermit/, or from any of
several mirror sites.
--
Pete Peter Turnbull
Dept. of Computer Science
University of York
Several months ago, I was given an A][+, with a z80 card and a bunch
of program, as well as data, disks. It has a printer interface card.
What is the easiest way to transfer the data on these disks (CP/M 3.3
various programs, mainly Wordstar 2.x) onto a PC or mac? Is there a
PC program that will read Apple CP/M disks? I couldn't easily do it
with a Mac since these are 5.25" disks.
______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com
< In general, I hope everyone that prides themselves of running
< Electric Pencil on their Altairs is doing it for practical purposes,
< and not because they just want to show off that they won't use
< a PC.
While I do some of it on PC, more over time there are things I can do
faster and easier on the s100 crate or even the Kaypro.
< A server for what? You must have an Interlnk client if you are using
< Intersrvr, unless you hacked the protocol...
< >
< >I do use an old 386sx/25 as a headless server using MSdos6.22 intersvr
< >and interlnk software and a parallel port data cable(LapLink).
I do, did you misread?
< I would bet that _most_ hackers do it for commercial/industrial
< reasons. FOr everyone who built their own z80, hundreds came off the
< assembly line.
And hundreds more were modified. Very few were built from the ground up
but, many were built from an intermediate state. IE: buy a s100 z80 cpu
>from company A, ram from B, floppy controller from n, floppy from S
and a box from a supplier of nothing but boxes... that constitues a
built z80 system circa 1980ish.
< >documented at best.
< That's an immense exaggeration. P-II boxes a) Have no jumpers, as a
< rule b) can support a 5.25" fdd if you can plug one in.
Why the "if you can plug one in"? Will plug and puke really work? What
do you do if it doesn't? What slot does the 8" controller from the XT
plug into on the PCI only board?
< >size. There are many PDP-8s (1970s tech), PDP-11s (late 70s into the
< >80s tech) and Data General Novas still in service as control systems
< >where they do the same thing everyday as the have for the last 20+
< years.
<
< I agree with that. It's impressive how many people think Windows NT
< is a safer option than UNIXoids though NT is only 1/3 as old...
Keeping in mind I was referring to systems in place and working as they
have for more years that M$ existed. Any bugs and the like have long
since been worked out or are at least well known. For someone makeing
steel parts or whatnot the OS, CPU and all that jazz really doesn't
matter when his task is to punch holes in 500 pieces a day.
Allison
< From: Wayne Cox <wcox(a)mis.usaeroteam.com>
^^^^^^^^^^
Wayne, you fly?
< > It's roughly the same thing as a Zenith Z90. I have the manual here (i
<
< If that's the one I'm thinking of, they started out as VT52 terminal
< clones, sold by Heath/Zenith. The on-board personal computer was an
< afterthought, I think. Former employer had a bunch. You may be able to
< tap directly into the terminal portion if you have need for a plain old
< VT52.
yes it started as H19 terminal, the terminal board is separate from the
H8x/Z9x computer board. It makes a good VT52/ansi terminal. I know I
bought one back in the summer of '79 (H19 hit that is). Still have it
and it still works.
Allison
I have a bunch of boards that I would like to move to a good home,
otherwise I will scrap them out. _ANY_ offers over shipping costs will be
considered.
Set of boards for an HP150 system! I am not sure what the processor
is (lots of HP house numbers, but I do see an 8041A and 9914A, neither of
which are the main processors). I have a motherboard with an jack for an
RJ45 keyboard, HPIB connector, and two RS232 ports. I also have a board
with lots of 4164 DRAMs, another with RAMs and ROMs, another mystery
board, and a module that says 3278 interface (HP #45641A).
William Donzelli
william(a)ans.net
< Where on the net, i could find the ST506 specification, or something lik
< RD54 OEM-Manual ?
RD54 is a MAXTOR 2190, so try them.
RD53 is micropolus 1325
rd52 is Quantum D540
RD32 is seagate ST251
rd31 is seagate st225
rd51 is seagate st412
rd50 is sugart/seagate st506
Allison
since i requested today off, i hit the thrift stores since i havent been able
to recently. i found a complete TI professional but left it as i presume it's
just an xt clone. found a //c drive in the box, but at $10, i left it. i did
get:
copy 2+ version 9 complete
quark catalyst with disks
prodos inside and out w/ disk
beagle graphics +disk
something called talk is cheap ver 3.1 w/ disk
beagle bros pronto dos/disk
bb triple dump /disk
a book called the dostalk scrapbook which explains apple dos 3.3
epson printer interface for apple //c
apple //c tech ref.
also got a nice pc tower case for $2 after i exclaimed it was blank and
nothing inside. lol.
there were a few more apple manuals and some beagle brothers software called
timeout-something or other, but i left that. might go back again.
david
