test-drb September 2001

test-drb@ccmp.vtda.org

256 participants
661 discussions

by engdahl＠cle.ab.com

I was rummaging in the attic looking for my IBM 1130 listings, and came across this Interdata 7/32 C Maintenance Manual. It includes detailed schematics of the CPU, and the microcode listing. Is anyone interested in scanning or copying this? -- Jonathan Engdahl???????????????? Rockwell Automation Principal Research Engineer????? 24800 Tungsten Road Advanced Technology????????????? Euclid, OH 44117, USA Euclid Labs????????????????????? engdahl(a)cle.ab.com 216-266-6409

22 years, 10 months

Philips P850 (Was: Classic Computers vs...)

by alan.pearson＠cramer.com

"Tony Duell" wrote: > It is worth seeing just how a processor can be built from > gates and flip-flops (and this will hopefully remove the myth that > there's something magical about the design of a CPU). A good book was written about this back in the late 80s by the bloke who taught us about digital design. I forget the title, but the author is Peter Thewlis and the book was published by the Oxford University Press. Takes you all the way from the basics of how to build various flip-flops to how to build registers and an ALU. Excellent fun :) --al

22 years, 10 months

Small Vaxen (was Re: Mainframe stuff...

by cmcmanis＠netapp.com

Does anyone know how to take the rolling feet off a BA215? Its really straightforward on the BA213 (I assume the same for the BA440) but the BA215 has recessed hex head screws and I can't get to them. I was wondering if there was some "preliminary" step that exposed them. --Chuck >Very nice toys. I have a MV4k200 in a BA215. A very handy QBus VAX and >it is nice to work on the BA215. No finger breaking and flor crawling >like on the flor stand BA23.

22 years, 10 months

Mainframe stuff...

by dittman＠dittman.net

I accidentally deleted the message before I read it completely, so I don't know what you said after commenting about the VUPs rating for the 7650, but the 7650 is about 155 VUPs, not 175, according the table I got from DEC. The 7610 is 35 VUPs, and each processor adds 30VUPs. You lose the rest due to overhead. -- Eric Dittman dittman(a)dittman.net Check out the DEC Ethusiasts Club at http://www.dittman.net/

22 years, 10 months

Two DEC LN03 toner / maintenance kits available

by jfoust＠threedee.com

I picked up two each of the toner cart kit and the user maintenance kits, at $2 each. They're available at that cost plus shipping. New in box, unused. - John

22 years, 10 months

MC68881 vs MC68882 (was Re: Mac Plus as a webserver...)

by Lee.Davison＠merlincommunications.com

> 68882 is right for 68030 & 68020. 68881 only foir 68020. > (talking about hardware, no software) My memory is that the parts were interchangable in hardware (presuming the speed was OK) but the performance was better at a given speed for the 68882 over the 68881. They are. Lee. ---------------------------------------------------------------------------- ---- This email is intended only for the above named addressee(s). The information contained in this email may contain information which is confidential. The views expressed in this email are personal to the sender and do not in any way reflect the views of the company. If you have received this email and you are not a named addressee please delete it from your system and contact Merlin Communications International IT Department on +44 20 7344 5888. _____________________________________________________________________ This message has been checked for all known viruses by Star Internet delivered through the MessageLabs Virus Scanning Service. For further information visit http://www.star.net.uk/stats.asp or alternatively call Star Internet for details on the Virus Scanning Service.

22 years, 10 months

Tru64 V5.1

by dittman＠dittman.net

I know this is off-topic, but earlier there was some discussion that included comments about people buying the Tru64 hobbyist kit. If anyone has the Tru64 V5.1 CD set, I need to get an ISO image of the Associated Products CD 1 of 2. I damaged my CD. -- Eric Dittman dittman(a)dittman.net Check out the DEC Ethusiasts Club at http://www.dittman.net/

22 years, 10 months

MC68881 vs MC68882 (was Re: Mac Plus as a webserver...)

by dittman＠dittman.net

> My memory is that the parts were interchangable in hardware (presuming > the speed was OK) but the performance was better at a given speed > for the 68882 over the 68881. I never did any rendering on my Amigas, > so my use of the floating point was rather limited. I skipped over > the '020 when I was heavily into Amigas, leaping from a massively > expanded A1000 (Rejuvinator, Spirit InBoard, Microbotics Starboard w/Star- > Drive, ROM switcher, etc.) to an A3000/25. I had a Mac II, which used a 68881. I remember the 68882 being sold by some people as a speed-up for the Mac II. I bought a 68851 MMU so I could run A/UX on my Mac II. The 68851 added functionality necessary for A/UX but did slow down memory access slightly. -- Eric Dittman dittman(a)dittman.net Check out the DEC Ethusiasts Club at http://www.dittman.net/

22 years, 10 months

Wang 8" disks

by fire＠dataflo.net

good reputation, don't know how expensive... http://www.discinterchange.com/ they claim to be able to read media >from the following machines... Wang OIS Wang PC IWP Wang PC running WP Plus Wang VS (WPS Archive Disc) Wang VS Alliance Wang WITA Wang WP Plus High Density Wang WP Plus OIS, Wangwriter Wang WPS Wangwriter Bradley Slavik

22 years, 10 months

who's got an M88k Aviion?

by jeff.kaneko＠juno.com

r-- I own an AV-400, and a 412. In addition, I have enough parts to turn my 400 into a AV-530. The 400 could be a single or dual processor machine, mine uses a 'stock' framebuffer. There used to be a page that had some of the NV-RAM info on it; I'll have to see if I have it stashed away somewhere. Do you have the DG/UX install CD/Tape? Jeff On Tue, 18 Sep 2001 01:47:02 -0400 (EDT) "r. 'bear' stricklin" <red(a)bears.org> writes: > > I'm looking for list members who own functioning M88k-series DG > Aviion > machines for a research base, so I can finish resurrecting my 310CD. > I > need some NVRAM information. > > Let me know if you have one; include the model and graphics type, or > at > least as much as you know about either. > > I'll follow up with more information in a week or so, depending on > what > kind of response I get. > > Thanks, I'd really appreciate it it! > > > ok > r. > ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/tagj.

22 years, 10 months

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test-drb September 2001