test-drb April 1998

test-drb@ccmp.vtda.org

122 participants
678 discussions

by sinasohn＠ricochet.net

Toshiba also has files listing specs of older machines, and a file that lists prices of discontinued items. See: http://www.csd.toshiba.com/tais/csd/support/files/product.htm P.S., the other page wasn't 100% complete (had the T5200 but not the T5100) but still was pretty good. This one looks to have most (older) models. --------------------------------------------------------------------- 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/

26 years, 9 months

math coprocessors

by maxeskin＠hotmail.com

[Autocad not requiring math coprocessor] Well, version 12 for Dos, which is what I have, seems to require it. It refuses to start up, quitting with "80x87 required, but not present". Whoever said it doesn't, maybe you have a lower version. If so, which and what's it like? I would certainly be interested in an older version, such a 7 or 8. ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

26 years, 9 months

Old Data

by sinasohn＠ricochet.net

At 11:47 PM 4/3/98 -0600, you wrote: >> >* I'll return or destroy any personal data I find on a machine I acquire. >> >> ...acquire, keeping it in the strictest confidence should I find it >> necessary to view it. > >More like...if the person(s) that ditched the computer in whatever form didn't >feel the need to safeguard the information prior to release of their >personal/corporate property, then it's of no reason to follow through with any >protection of data/software contained on the machine or disks. If you buy a Except, that people may feel it's easier (and/or safer) to just destroy the machine than it is to try and make sure no one can read their data. What if some one told you, "yeah, I had one of those imsai computers, but I had it smashed up to make sure no one could get at my old tax returns." Not a pleasant thought. I agree that people should be responsible for their own data, but I also feel that we, as collectors, need to hold ourselves to a higher standard, so that people will feel comfortable giving us their old machines. Similarly, would you tell your analyst/doctor/lawyer as much as you do, if you thought they might be telling everyone in the pub what you told them? >camcorder at a consignment or pawn shop and the last owners left a tape of >their after-hours playtime in the camcorder, is it my responsibility to erase, >safeguard or return it? I think not. I feel the same should apply to personal It's your responsibility to post it on the internet! 8^) Camcorders are reasonably well understood items; what if it were a digital camera? Someone might decide not to pass it on if they thought they might not have erased everything... Most of the people here probably know how to wipe a hard drive so it can't be read. (My best guess is a low-level format, then fill it with worthless data? Good thing I have nothing to hide!) But the average AOL user doesn't. When Grandpa passes on, you don't want the grandkids trashing all his old computers because they don't know how to make sure that no one will know about all the porno sites he visited on the web. >Roger: Very nice page of your collection. A few more pics of each item and it >should become a very informative source for those interested in the world of >the obsolete (the computers, not you). I tried to get pics of each side and any important features... You think even more pics would be appropriate? Or do you mean pics of more computers? P.S., for them what was interested, I'm still working (in my Copious Spare Time) on documenting the programs I use to generate the pages. I'll post when I get them finished and uploaded. --------------------------------------------------------------------- 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/

26 years, 9 months

Fwd: Franklin computer available

by Roger＠Sinasohn.com

Got this in the mail... Please respond to Ed at ed(a)estival.com... >X-Persona: <Roger(a)Sinasohn.Com> >X-Originating-IP: [32.100.144.158] >From: "Ed Schreiber" <edschreiber(a)hotmail.com> >To: roger(a)sinasohn.com >Subject: Franklin computer available >Date: Sun, 05 Apr 1998 20:34:11 PDT > >To computer museums and serious collectors: > >There is a Franklin 1000 computer available for donation (Apple II >clone). Monitor, two floppy drives, all cables, some software, still >works. > >If interested, please respond. > >Ed Schreiber >http://estival.com >ed(a)estival.com > >______________________________________________________ >Get Your Private, Free Email at http://www.hotmail.com > > --------------------------------------------------------------------- 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/

26 years, 9 months

Singleboard and peripherals for grabs (Northern CA)

by allisonp＠world.std.com

<It's a Netronix 8085 SBC from around 1979 (I thought the 8085 came out a <little later than that), with some sort of S-100 compatibility. He's <faxing me a spec sheet tonight. I may pick this up if nobody else wants <it, but I'll defer to somebody who's also interested in a (home made?) <terminal and a small thermal (Telepar?) printer. The 8085 is late '77 I built my Netronics8085 in mid '78. I used to call on netronics. Mine is still in use as a Eprom programmer. The system was motherboard based with bus expansion as S100. The CPU was a 3mhz 8085. There was also a simple serial IO (bitbash) and casette interface on the board along with an assortment of parallel IO. The base board could be configured to take up to 8k of 2716 eprom (or 2116 2kx8 ram) and 4k of 2114 ram. The Northstar disk and PT-VDM1 worked very well with it makes in very compact s100 system. Allison

26 years, 9 months

ISA to PCI?

by kyrrin＠jps.net

Tim Hotze scribbled... >the old ISA cards I've collected, I just got an AWE 64, and my scanner and >PCMCIA cards are ISA-based. So, is it possible to make a device that will >make an ISA card fit into a PCI socket? Is anyone making them? No one that I know of. In fact, I question that such a device is even economically possible to the point that a company would want to try. The architecture differences between PCI and ISA are enormous. The only thing I can think of that -might- stand a chance of working is to construct some sort of sub-board that the ISA card would plug into. Said sub-board would contain the necessary circuitry to implement an ISA-to-PCI bridge. This means, at bare minimum, dealing with a 220-lead surface-mount PQFP chip and its supporting components. That means lots of skill in engineering such bridges, to say nothing of having access to schematic capture and PC board layout tools that can handle advanced boards... Well, you get the idea. I'm not going to say "it can't be done" because I think it can. It's just that I have neither the skill nor the desire to attempt it. ;-) -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- 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..."

26 years, 9 months

Math coprocessors

by photze＠batelco.com.bh

Seriously look for a Weitek Math Co processor, especially if you've got lots of RAM. They were 387-compatible FPU's that used some RAM to boost speed dramatically. As a matter of fact, a Weitek might even be faster than a FPU found on a Pentium or higher machine. -----Original Message----- From: Jack Peacock <peacock(a)simconv.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Monday, April 06, 1998 9:34 PM Subject: RE: Math coprocessors >Ward Donald Griffiths III wrote: >> Max Eskin wrote: >> > >> > I found a PS/2 Model 70 recently, which would normally have a 386, >> > but the previous owner installed a Cyrix 486 upgrade chip. Does >> > anyone know if I can use a 386 math coprocessor with this? I want >> > to run AutoCAD. >> >> The i486 has a coprocessor built in, I assume that the Cyrix does >> as well. Try the software. IIRC, AutoCAD doesn't _require_ a math >> coprocessor, but one does help performance by an order or two of >> magnitude on a 386. >> -- >No, the Cyrix 486DL (I assume it is a DL or DR2 if it's in a 386 >motherboard) is not the same as an Intel 486. The Cyrix 486DL was an >upgrade CPU for the 386 pinout, adding a 486 instruction set and 1K >internal cache. The 486DR2 version was clock doubled. These CPUs do >not have floating point. Generally an Intel 80387 did not work >reliably, but the Cyrix 487 co-processor did. ULSI (and I think IIT) >also made 487s. You can try the Intel 387, sometimes they ran ok, >mostly it depended on the speed range used. > Jack Peacock

26 years, 9 months

Looking for help with Mac SE Radius board/monitor

by erd＠infinet.com

Having recently discovered this list, I might have a chance at getting some help for a long obsolete Radius product: the Radius Full Page Display for the Mac SE. My late mother bought this a while back, attached to a Mac, for her word processing/typesetting business. It has never worked, due to the fact that the previous owner of the Mac SE formatted the hard disk before handing it over to her. The drivers for the card _were_ on there, but she used the machine for weeks before asking her sons why the big screen initialized but never worked. The external monitor comes up, displays a half-tone pattern, then goes dark. I did manage to get _a_ driver for the card when Radius still had it on their ftp site, but, alas, the ROMs are too old to work with that version of the driver. At the time, my mother didn't want to spend $80 to get newer ROMs from Radius, and now, they aren't available. So... what I could use is either a) an old version of the FPD SE disks (c. 1987-1989) or b) FPD SE ROMs newer than version 4.1 (the ones that are installed there now). Besides the version number, the ROMs have a U number (U19 and U20) and a part number (297-132-D and 297-131-D) and a size (256K). The date on the ROM labels is 1989. The date on the PCB silkscreen is 1987. Thanks for any help. -ethan P.S. - I can burn my own ROMs from images. They're just plain-old 27C256's.

26 years, 9 months

Singleboard and peripherals for grabs (Northern CA)

by engine＠chac.org

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26 years, 9 months

Speaking of VoxBox...

by sethm＠loomcom.com

I have one here that I'd gladly part with. In the original box, with the original documentation and cassettes. The original box, it should be noted, has been written all over and used to mail the thing hither and yon, so it's not "pristine" to say the least. I don't want a lot of money for it, but I'll accept little offers to cover the hassle of mailing it, plus postage. The only reason I'm getting rid of it is because I'm frankly not that interested in RadioShack stuff :) So hopefully it will end up in a nice happy friendly collector's home being tinkered with instaed of sitting on my shelf collecting dust. -Seth Morabito Computer Historian, DEC Enthusiast, Weirdo Send comments, questions, and offers to sethm(a)loomcom.com

26 years, 9 months

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test-drb April 1998