test-drb April 2002

test-drb@ccmp.vtda.org

280 participants
1162 discussions

by pat＠purdueriots.com

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

22 years, 1 month

"Toy" computers (was Re: Micro$oft Biz'droid Lusers)

by dquebbeman＠acm.org

> > > 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! ;)

22 years, 1 month

Free DEC R400X DSSI expansion chassis

by fernande＠internet1.net

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

22 years, 1 month

.I.P. for D.I.Y.

by dquebbeman＠acm.org

>> 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!>

22 years, 1 month

FW: Adopted -- PC Convertible 5140

by rcini＠msn.com

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

22 years, 1 month

Mark-8 parts for sale

by MTPro＠aol.com

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

22 years, 1 month

Mathiputer

by hybridhybrid＠msn.com

Are you interested in another mathiputer - let me know Smith

22 years, 1 month

Hp2100 software available. Where ?

by CAA007216＠mail.ono.es

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

22 years, 2 months

Amstrad PPC640

by GColinwg＠aol.com

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

22 years, 2 months

expansion differences (was Re: Micro$oft Biz'droid Lusers)

by dquebbeman＠acm.org

> 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

22 years, 2 months

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test-drb April 2002