Yesterday I was lucky enough to pick up an IBM 5150 at Purdue Salvage for
$0 (just before it hit the trash). After a bit of playing with it, and
trying a SVGA card with it (it had no video card in it when I got it, I'm
suprised the 16bit card works OK in an 8bit slot), I've gotten it to boot
into MS-DOS 5 (ick) and CP/M-86.
I now seem to have a problem with its second floppy drive... When I try
reading from any disk, I get a "Data error" in CP/M and DOS. I think that
the problem is the head not moving... I can 'format' a disk in CP/M in the
drive, but I don't hear the disk head seeking. These are IBM branded DSDD
(full height 5-1/4") floppy drives.
Does anyone have any info I can use to try and debug (and hopefully fix)
this problem?
-- Pat
> > > If it's a mainframe, then the campus is the enclosure,
> > > while if it's a desktop, it's pretty obvious what that is.
> >
> > Today that campus worth of hardware is emulated in the hercules
> > s360/370/390/ zSeries emulator http://www.conmicro.cx/hercules
> > running on a PC running linux or winbloZ
> >
> > OS, DOS, MVS, VM ... running on your pc, serves x3270
> > terms over the network etc etc.
>
> Ow! You're killing me!
What's the emoticon for the world's smallest violin?
You're breakin' our hearts!
;)
Free DEC R400X DSSI expansion chassis, plus a few other spare parts from
the one I scrapped out. It has no drive sleds, unfortunetly.
It is in Southwest Michigan, and you must come pick it up. I will not
ship this thing.
Please respond off list.
Chad Fernandez
Michigan, USA
>> I got this URL for an article in Scientific American that seems
> appropriate for this group :). The last paragraph reads:
>
> "Evidently, the something-for-everyone model epitomized by Heathkit and
> the Amateur Scientist column can't compete anymore. Specialized sources
> and Internet newsgroups cater to each skill level. But much of the
> mentoring and serendipity that the diverse community of amateurs offered
> has been lost. It is hard not to regret its passing."
Well, I didn't know this about Edmund Scientific. Crap. I've
been looking for the older catalogs, now even the more recent
ones I've got will become collectable unobtainium.
Where will I buy water wetter?
Where will I buy Nitonol wire?
Where will I buy flock paper?
Where will I buy cheap assortment of lab glassware?
Where will I buy an ultrasonic cleaner?
Where will I buy a good Chinese microscope?
and so on...
<sob!>
I was contacted by the below person regarding a PC Convertible. I already
have one so I'm passing this on to the list. Please contact Leigh directly.
Rich
-----Original Message-----
From: Bluewolf Creative Arts [mailto:bluewolf.creative@verizon.net]
Sent: Saturday, April 27, 2002 11:40 AM
To: rcini(a)optonline.net
Subject: RE: Adopted -- PC Convertible 5140
Hi Rich,
Yes you may put the word out that I have a very nice
one of these for sale - I'm thinking of putting it up on ebay to
seewho nibbles, but I will wait until you contact your collector
group first. Unfortunately I do not have a manual or any supporting
software disks, etc - just the machine itself - which boots just fine
and shows a window with commands at the bottom which I do not
really understand - in addition to load/save/ - which is easy enough-
there are commands for tron/troff/ and others.
Here's my site:
http://bluewolfcreative.com (still under construction)
Best regards,
Leigh
>-----Original Message-----
>From: Bluewolf Creative Arts [mailto:bluewolf.creative@verizon.net]
>Sent: Friday, April 26, 2002 8:47 PM
>To: rcini(a)optonline.net
>Subject: Re: Adopted -- PC Convertible 5140
>
>
>Rich, I recently acquired one of these machines also -
>it's an IBM PC Convertible 5140 in perfect condition...
>however, I am a mac person, so I am looking to sell
>this machine. Are you interested? It came without
>the printer but the external power supply works just
>fine... no manual... it boots up just fine - tried some
>dos commands but no luck - how does one work
>this thing? It's pretty cute - looks like new...
>
>Leigh in Palm Springs CA SA
Thank you to everyone who responded to my ad to sell my Mark-8 kit. For
anyone interested in the boards or additional parts, here is the man to
contact:
Steve Gabaly
Apalachin, NY
old_computers(a)yahoo.com
Steve's a good guy and has painstakingly created his Mark-8s and parts, etc.
His CD contains a wealth of great info including a copy of the original Radio
Electronics article, a supplemental 47 page construction article, a 50 page
manual detailing his experience and hints debugging this computer (with many
photos and full scans of completed boards), and about 200 pages of the Mark-8
newsletter (the first real computer hobbyist newsletter that kept all the
early pioneers informed before Byte came out, its a treasure chest of
historical information about the Mark-8 and other early computers, the
January 1975 issue is especially interesting, this is when the Altair was
introduced).
Best,
David Greelish
Classic Computing
www.classiccomputing.com
"classiccomputing" on eBay
Hello everybody. I should like to probe the HP2100 simulator available
under Bob Supnik's SIMH. Is there any software repository available
for this machine ? I know the Jeff Moffat's website programs only,
but somebody spoke here some time ago about some other place where
to get software for this machine.
Greetings
Sergio
Hello my name is Colin from (UK) i also have just got an Amstrad ppc640 just
for messing around on.... but it doesn't have any operating system on it and
won't recognise any disks as when i boot it up it always says invalid system
disk... i am using both 720k diskettes and have tried 1.44meg and tried
putting all dos versions and windows 95 onto it.... any advice would be most
grateful....
Yours...
Colin
E-mail ---- GColinwg(a)aol.com
> SCOPE and Kronos were based on Chippewa. COS was largely
> written by Seymour Cray; in particular, MTR is known by
> programmers who worked on it later to have been written
> completely by Cray. He and one or perhaps two others did
> it between June and December 1964.
I should point out here that Cray's MTR continued through
NOS/BE 1.4 or later, but the Kronos version was rewritten
>from scratch by Greg Mansfield.
-dq