test-drb July 2000

test-drb@ccmp.vtda.org

155 participants
521 discussions

by dhquebbeman＠theestopinalgroup.com

If any of the people who maintaining archives of these kind of docs ask first, go with them, but if not, rather than see them in the dump, I'll take 'em. let me know... -dq > -----Original Message----- > From: Mark Champion [mailto:mark.champion@am.sony.com] > Sent: Friday, July 07, 2000 1:01 PM > To: classiccmp(a)classiccmp.org > Subject: Free Tektronix 4014 manuals > > > I have an official Tektronix 4014 service manual and a > photocopy of a 4014 user's manual. > If someone wants them, they can have them for free. > > Mark Champion > Sony Electronics > 206-524-0014 > mark.champion(a)am.sony.com > >

24 years, 5 months

Free Vax Tapes

by mark.champion＠am.sony.com

I have 30 small (6" dia) VAX tapes (Opus 6250) and 12 large (7" dia) VAX tapes (Scotch 700). I believe the small tapes are 600' x 1/2" and the large tapes are 700' x 1/2". I think they have all been written on once with data - no executible files. Tapes are free if you can pick them up in the Northend of Seattle. Mark Champion 206-524-0014 mark.champion(a)am.sony.com

24 years, 5 months

Great Finds

by rigdonj＠intellistar.net

At 10:45 AM 7/6/00 -0400, you wrote: >> That's probably a DDS (aka "DAT") drive ... at least, that's >> the only drive >> I've ever seen built-in to any HP 9000/8x2 or HP 3000/9x2. >> (It'll be a DDS-1, most likely) > >That's what I suspected but, wasn't sure. I'll get some so that I'll have a >system backup. Any idea how much data fits on one? > > >> How much memory do you have? (The 8x2 and 9x2 could have >> memory plugged into >> just about any slots (front or back!). > >One of the systems is configured with 4 X 8MB of memory. The other has 1 X >32 MB. I also have 8 additional 8MB modules that were pulled from the system >with the bad CPU. Haven't had a chance to check them out yet. > >Between the two system (and spares), I have 6 HPIB interface cards, 10 I/O >MUX cards, 9 hard drives, 2 LAN cards, and 2 optical interface cards. > >We also found a short rack of hard drives at the junk dealers place but, I >didn't get them. I noticed that they had the fibre connectors but, at the >time didn't realize the computers had fibre interfaces :-( > >I might go back later and get the rack. If it's still there (Joe?) Nope, he scrapped it the next day. It's on it's way to China now. :-( Art has some fiber drives but I don't know if he'll part with them. I'll probably see him today. If I do I'll ask. Sorry I haven't answered your messages soooner. We went and picked up three more loads yesterday and I didn't get back till late. I'll try to pack the CD drive and get it in the mail today. BTW we got a SGI Onyx Reality Engine2 yesterday. It's HUGE!!!!! I'm taking Bob R. out to look at it this morning. Joe >

24 years, 5 months

HP 85 stuff

by ethan_dicks＠yahoo.com

--- Joe <rigdonj(a)intellistar.net> wrote: > At 10:08 AM 7/4/00 -0700, Eric wrote: > >On a related note. I have several machines with HPIB/GPIB/IEEE-??? > >type interfaces, and occasionally see disk drives with the same interface. > > I know HP and the Commodore Pets both used that interface. So does my > Tektronix 4051. I don't know if anyone else used it. The DEC MINC (a PDP-11 dressed up for Laboratory use) typically came with an IBV11 card - Qbus GPIB. I have one but I've never programmed anything for it. Presumably, the MINC manuals have more than enough info to get a working start under RT-11. -ethan ===== Even though my old e-mail address is no longer going to vanish, please note my new public address: erd(a)iname.com The original webpage address is still going away. The permanent home is: http://penguincentral.com/ See http://ohio.voyager.net/ for details. __________________________________________________ Do You Yahoo!? Kick off your party with Yahoo! Invites. http://invites.yahoo.com/

24 years, 5 months

Computype Compuedit Revisited.

by dhquebbeman＠theestopinalgroup.com

I was told, but cannot verify, that one of our local newspapers (the Louisville Courier-Journal) had one of these systems; the guy who gave me a "printout" >from a demo program (it was a bunch of words set in various fonts with various additional attributes like boldface, Italics, etc, printed on a plastic film) said the Computype system was front-ended by a DECsystem-20. hth, -doug q > -----Original Message----- > From: David Vohs [mailto:netsurfer_x1@hotmail.com] > Sent: Thursday, July 06, 2000 6:24 PM > To: classiccmp(a)classiccmp.org > Subject: Computype Compuedit Revisited. > > > Some months ago I asked on this group what the Computype > Compuedit computer > was. I was told by someone (who is that person, by the way?) > that it was the > front-end machine to a photo-typesetter from the early 80's. > Does anybody > know where I can find pictures of this thing in operation? > ____________________________________________________________ > David Vohs, Digital Archaeologist & Computer Historian. > Home page: http://www.geocities.com/netsurfer_x1/ > > Computer Collection: > > "Triumph": Commodore 64C, 1802, 1541, FSD-1, GeoRAM 512, MPS-801. > "Leela": Macintosh 128 (Plus upgrade), Nova SCSI HDD, Imagewriter II. > "Delorean": TI-99/4A, TI Speech Synthesizer. > "Monolith": Apple Macintosh Portable. > "Spectrum": Tandy Color Computer 3, Disto 512K RAM board. > "Boombox": Sharp PC-7000. > ____________________________________________________________ > ______________________________________________________________ > __________ > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com

24 years, 5 months

CRC errors

by allisonp＠world.std.com

From: Tim Mann <mann(a)pa.dec.com> >Of course, with floppy disks we have sectors of 128 to 1024 *bytes*, not >bits, and the CRC is only 16 bits, not 32, so I don't think we can do >much correction. With a 1024 byte sector, it already takes 13 bits of >information to say where a 1-bit error is. So if we use a CRC16 to correct >it, we have about a 2^(-3) = 1/8 probability that if more than one bit >is in error, we'll make a spurious correction. Therein lies the difference, the use of CRC vs ECC, floppies have a fairly high soft error rate compared to hard errors so detecting an error and rereading is the strategy. It is also an economy of design that comes >from the characteristic otherwise you can bet there would be ECC. Allison

24 years, 5 months

Computype Compuedit Revisited.

by netsurfer_x1＠hotmail.com

Some months ago I asked on this group what the Computype Compuedit computer was. I was told by someone (who is that person, by the way?) that it was the front-end machine to a photo-typesetter from the early 80's. Does anybody know where I can find pictures of this thing in operation? ____________________________________________________________ David Vohs, Digital Archaeologist & Computer Historian. Home page: http://www.geocities.com/netsurfer_x1/ Computer Collection: "Triumph": Commodore 64C, 1802, 1541, FSD-1, GeoRAM 512, MPS-801. "Leela": Macintosh 128 (Plus upgrade), Nova SCSI HDD, Imagewriter II. "Delorean": TI-99/4A, TI Speech Synthesizer. "Monolith": Apple Macintosh Portable. "Spectrum": Tandy Color Computer 3, Disto 512K RAM board. "Boombox": Sharp PC-7000. ____________________________________________________________ ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com

24 years, 5 months

Tim's own version of the Catweasel/Compaticard/whatever

by allisonp＠world.std.com

From: Tony Duell <ard(a)p850ug1.demon.co.uk> >Yes, but when the microcontroller + Xtal + caps clocks fine on a PCB and >fine on stripboard[1], but fails to work on a breadboard, then I think I am >justified in (partially) blaming the breadboard ;-). No Your not! it is a lousy oscillator and susceptable to stray and all manner of bad things. I've seen them NOT work on very well laid out 4 layer boards as well. >Deadbugging is great!. It's good to a few hundred MHz at least. I've used >if for analogue stuff many times. Yes it is, I've used it to 1GHZ with great success. While I was sick last week I even kluged a 75m phone RX on a 2x4" peice complete with 6kc bandwidth mechanical filter. Looks kinda poor but works solid. Allison

24 years, 5 months

who knows: Celerity [GEI Rechnersysteme] ?

by xds_sigma7＠hotmail.com

One more addition: They were bought by FPS (good ol' Floating Point Systems), in 1988, with the resulting company being called FPS Computing. The FPS 500-series machines are actually Celerity 6000-series minisupers. This company was another company like Convex, Alliant, Sequent, etc. Will J ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com

24 years, 5 months

who knows: Celerity [GEI Rechnersysteme] ?

by anmu＠mm-lab.uni-tuebingen.de

hello ! someone offered my a Celerity computer from 'GEI Rechnersysteme'. it is mounted in a 19" rack and has a built in tape drive. unfortunately they cannot provide me further information. so I would like to ask you on the classiccmp-list: - where can I get further information about this machine ? - what hardware is in it ? [bus, cpu,...] - what operating systems run on it ? - should I take it or leave it ? thanks for help, Andreas -- ********************************************************* * Andreas Mueller * * * * Multi-Media-Labor || Uni-Tuebingen * * phone: +49 7071-2978567 or +49 7071-2977821 * *********************************************************

24 years, 5 months

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test-drb July 2000