test-drb May 2001

test-drb@ccmp.vtda.org

273 participants
642 discussions

by jos.mar＠bluewin.ch

Thos of you interested in Zuse's old work should move to www.zuse.org This site is made by Karl Zuse's son. The site mainly exists to sell a multimedia CD that is upposed to be filled to the brink with information on Karl Zuse's machines, from the mechanical Z1 until the end of the Zuse company. An interesting note : a copy of the Z3 is being made, with modern relais that feature a LED reflecting the relais state. This machine will make the rounds in Germany soon. Jos Dreesen

23 years, 7 months

Need help with retrieving data from a DOS 2.11 formated flopp y disk

by Robert_Feldman＠jdedwards.com

Skipped content of type multipart/alternative

23 years, 7 months

eBay alert: TI 980B mini and a HUGE IBM drive

by JRichardson＠softwright.co.uk

OK, that has to be the coolest-looking piece of junk I've seen :-) Does anyone have any websites dedicated to all of the huge old oddball stuff like this? Jules > ---------- > From: ip500[SMTP:ip500@home.com] > Sent: 04 May 2001 20:35 > To: classiccmp(a)classiccmp.org > Subject: Re: eBay alert: TI 980B mini and a HUGE IBM drive > > Lay of the crack! Powder is much easier on the memory!! And that was > here, about a month ago. I've got one hanging over my desk on BIG chains > secured to eyebolts into the main joists of the floor above. Good > conversation piece! > Craig > > URL for the pix is: > http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=1235355979 > > "Jeffrey S. Sharp" wrote: > > > > Quoting ip500 <ip500(a)home.com>: > > > IBM drive 1235355979 > > > These were not offered here first > > > > No, but I think I remember someone talking about finding the big IBM > > drives on this list and even posting those same pictures. Or maybe > > that was another list. Or maybe I should lay off the crack... > > > > -- > > Jeffrey S. Sharp > > jss(a)ou.edu >

23 years, 7 months

D-116 Digital Computer Controls - minicomputer

by chomko＠greenbelt.com

Has anyone ever heard of such a thing. I dug out a manual and a book on the system, and remember working on one years ago. The books are dated 1972-3. The company is out of New Jersey. Anyone one know anything about the D-116 system or about the fate of the company: DCC? Eric

23 years, 7 months

Mac Portable (Was Re: Seriously OT: Firearms)

by pete＠dunnington.u-net.com

On May 7, 0:57, Mike Ford wrote: > >Yes, that 3.6V AA1/2 is rare and OVERPRICED around here. 16.xx to > >20 ea CDN. Still searching for cheaper sources in canada. Must it > > I buy them for about a buck at the swapmeet, maybe not brand brand new, but > not used and typically within the expected 5 year or so shelf life. Plenty > of people sell them new on Ebay for $6, so I don't bother. > > I will mention that I still have a few hunderd of the 4.5v alkalines for $5 > or less in quantity. Mike, are these the same batteries used in the Mac Plus? I can't seem to find any equivalent over here. -- Pete Peter Turnbull Network Manager University of York

23 years, 7 months

IBM Series/1

by vance＠ikickass.org

Anyone know where I can get technical docs for this thing? I have a couple of programming manuals, but I would like stuff like service manuals and hardware configuration guides. Peace... Sridhar

23 years, 7 months

Computers as weapons

by pete＠dunnington.u-net.com

On May 7, 15:26, James B. DiGriz wrote: > Trying to get in something at least a little on-topic, I've heard of > people being killed accidently by industrial robots and such, or the > prospect of the imminent demise of hospital patients due to script > kiddies screwing around with medical records databases or life support > equipment, but does anyone know of an instance where a computer was used > to kill someone? Including military or intelligence cases? The only documented case I recall immediately is the famous Therac-25 case. This was essentially a case of misdesign, which led to half a dozen deaths. A Google search for "therac" or "leveson" will find plenty of references. Some time ago, when I was doing a course on Software Engineering for Safety Critical Systems, I came across a book with several other reports, but I can't remember the title or author :-( I don't recall any other fatal incidents, though. -- Pete Peter Turnbull Network Manager University of York

23 years, 7 months

Need help with retrieving data from a DOS 2.11 formated floppy disk

by pete＠dunnington.u-net.com

On May 7, 14:14, jimmy tsai wrote: > The company I work for has a machine that runs on DOS 2.11 > There are some data on that machine that we need to retrieve. The > information is transfered from that old machine to a 1.44mb floppy. > > When we put the floppy into our pentium winNT4 computer , we can not > read the information on the floppy. The NT os simply says it does not > know what format the files are at. I'm pretty sure 1.44M/HD disks didn't appear until DOS 3. Chances are the old machine has a double-density 720K drive, and if so you really shouldn't be putting 1.44M disks in it (they're a different coercivity). What you end up with is 9 sectors per track on a disk that the newer machine recognises as high density 18 sectors per track, so it tries to read it at double the data rate, and fails to find anything useful. If I'm right, you need to find some proper double density disks, distinguishable by not having the square hole on the right. -- Pete Peter Turnbull Network Manager University of York

23 years, 7 months

Trenton State Computer Festival

by pete＠dunnington.u-net.com

On May 7, 13:52, healyzh(a)aracnet.com wrote: > It's not a Computer, but I know for a fact that an HP5MP Laserjet will not > work with 60ns RAM, it wants 70ns RAM (company I bought the RAM from sent > 60ns by mistake). It just plain wouldn't recognize the RAM. That may be because 72-pin SIMMs have 4 sense connections that tell the host the speed and size. 60ns was rare when the 5 came out, and I expect HP didn't include recognition of that code (possibly because it could also mean something much slower -- some codes are re-used, though I can't remember if the 60ns code is). If you changed one link on the SIMM I expect it would work fine -- so long as the SIMM was FPM not EDO. Most of the 60ns SIMMs I've seen are EDO, and that certainly won't work in an HP5M. -- Pete Peter Turnbull Network Manager University of York

23 years, 7 months

Emulex QT14 and Fujitsu M2442: Problems writing two or more files on one tape

by hans＠Huebner.ORG

Hi there, I recently acquired a DEC TSV05 QBUS Pertec controller and a Fujitsu 9-Track tape drive. My TSV05 actually is a relabeled Emulex QT14 with a different prom on it - The DEC version only talks TSV05 emulation whereas the QT14 also speaks TMSCP. I've put the controller into my VAX 4000/500A which runs VMS 7.2 The Drive/Controller combo works fine for reading tapes. Writing works as well, but only the first file can be written. Upon trying to write the second file, the drive starts to spin the tape back and forth and then stops, giving the following error message: %COPY-E-WRITEERR, error writing MSA0:[]VMS072.B;1 -RMS-F-WBE, error on write behind -SYSTEM-F-DRVERR, fatal drive error %COPY-W-NOTCMPLT, DUA4:[000,000]VMS072.B;1 not completely copied To me this looks as if the drive has problems writing file marks, or I am doing something wrong. As I do not have any documentation on the drive, I'm asking here: Does anyone know the problem and has a solution for it? Do I need to configure the drive or the controller differently? Are there any VMS paramters I need to modify to get the thing to write multiple files on one tape? Thanks in advance, Hans -- finger hans(a)huebner.org for details

23 years, 7 months

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test-drb May 2001