test-drb June 2001

test-drb@ccmp.vtda.org

273 participants
682 discussions

by mcguire＠neurotica.com

On June 12, Douglas Quebbeman wrote: > I just read it last night, but can't find the reference; > but the Cyber 205 was the final evolution of the CDC 7600 > machine. Its peripheral processors were true, individual > processors, as opposed to the 6600's single multi-threaded > PP (one processor with multiple contexts). I beg to differ here...The design of the 205 was based on the design of the Star 100, which predates even the 6600. I'm sure there was some cross-pollenation of ideas and such (being the same company and all) but they are different computers entirely. -Dave McGuire

23 years, 1 month

Cyber205 was RE: Ebay horror ...

by dhquebbeman＠theestopinalgroup.com

> Anybody want to say a word or two about 205's? > My recollection was that it was the first Seymour Cray > machine, probably about 20+ MIPS, probably fixed/short > electrical path, and probably rectangular (pre circular) > shape. Anything right? It was *definitely* not the first Seymour Cray machine. It's generally considered that the 6600 was architected by Cray, with Jim Thornton doing much implemtation detail. But Thornton tends to be put behind Cray in this effort, and: > Cray does acknowledge Thornton's authority and work on the 6600 in the > forward to "Design of a Computer." And it's true that Thornton was > the machine, and the design's, biggest booster both with the book and > the numerous papers he authored. I just read it last night, but can't find the reference; but the Cyber 205 was the final evolution of the CDC 7600 machine. Its peripheral processors were true, individual processors, as opposed to the 6600's single multi-threaded PP (one processor with multiple contexts). More when I can find it or point to it... -dq

23 years, 1 month

Cyber205 was RE: Ebay horror ...

by dhquebbeman＠theestopinalgroup.com

> >On June 11, Tom Uban wrote: > > Call Purdue salvage and ask. When I saw it, it wasn't in the area that > > would normally be seen, but it may be available. Call (765) 494-4600 > > and ask for the number for Purdue salvage... > > Ok, I'm Southern Indiana, I'll see if I can't get some initial > information about this machine. I could fit a Cyber 172 in > garage, but nothing this big, so I want to help get this > into the hands of a proper preservation organization. Ok, It's already been mostly gutted. There are a few cabinets left, they've been working since it was decommissioned to recycle it for the gold, etc. They may be willing to accept a bid for the remnants equal to the salvage value. They'll allow anyone who's interested to go there and take photos of what remains. Thoughts? -dq

23 years, 1 month

Lilith schematics anyone ?

by jos.mar＠bluewin.ch

I just took possession of a Lilith workstation, including two diskpacks and some spare boards..... Alas the Lilith doesn't function . While it still might be easy to fix, I'd rather have some schematics . Are these obtainable somewhere ? In particular I need to know if the boards marked "URAM" and "DPU" are essential or not, they are missing in my machine. "URAM" is not the main memory, since I seem to have a complete set of memory boards. Documentation I did get was limited to a short userguide with next to none technical info. I would love to see this thing get back into life...

23 years, 1 month

Searching for /etc/mkdev from HP-UX 9.0 (HP9000/300)

by hans＠Huebner.ORG

Hi there, does anyone reading this have a running installation of HP-UX 9.0 on a HP9000/300-series system and would be so kind to send me /etc/mkdev from that system. I've just inherited such a system and am trying to back up the installation first, but /etc/mkdev and the device nodes for the SCSI MO are missing. Thanks in advance, Hans -- finger hans(a)huebner.org for details

23 years, 1 month

Motorola EXORbus docs needed

by r_beaudry＠hotmail.com

Hello all! I recently acquired several Motorola (and other vendor) EXORbus cards. Included are a couple of Micro Module 1A CPU cards, some I/O and memory cards, and two boards that almost look like video cards. I need docs for the cards, but I'll post the list in a separate message, as I'm away from the cards right now. My initial questions are: - Does anyone have general documentation on the EXORbus itself? I'd like mechanical and electrical specs, pinouts, power supply requirements, timing diagrams, etc. Electronic format would be awesome, but other than that, I'd pay copying and postage for hardcopies. - Does anyone know where to get the 86-pin card-edge connectors so I could wire up a backplane to plug these beasties into? - Anyone have any EXORbus stuff they want to get rid of? :-) Thanks! Rich B.

23 years, 1 month

Call for Resources for CDC 6000/Cyber 70 Series Emulator

by dhquebbeman＠theestopinalgroup.com

> > I'd say it's worth preserving. May I implore you to seek > > out one of the people who frequent this list who offer > > conversion services? Let's get it on disk, somebody may > > find one of these systems someday. Or might want to write > > an emulator... > > > > Sure, sounds good in theory. Who has a 7-track tape drive in usable > condition at the moment, and wants to try reading the tape? I didn't want to volunteer him, since he does this both as a courtesy for fellow hobbyists and as a business for customers. He says he's got a several month backlog of handling his customer's needs, so the hobby-courtesy work is even more way behind. Likely, you'd have to just send him the tape and wait a year or so before he'll be able to get around to it. But I'm sure you've seen Tim Shoppa posting here before, and he's one of the ones I know about. The guy I sent my 9-track to is having someone else do it, and he didn't specify, so it's possible he's sent it to Tim. Meanwhile, as a possible hedge against this coming up in the future, I'll be keeping an eye out for a 7-track drive, one that's of sufficiently-late manufacture that it can be made workable again. May have to design a custom interface, but that's just work... Regards, -dq

23 years, 1 month

Call for Resources for CDC 6000/Cyber 70 Series Emulator

by dhquebbeman＠theestopinalgroup.com

> On Mon, 11 Jun 2001, Douglas Quebbeman wrote: > > > > Hmm, what are the odds... I just came across a small magnetic > > > tape from CDC, from 1975, containing CDC 8090 Assembler, whatever > > > that is... If the label is to be trusted, it is a 7 track tape, > > > contains one file, and the density is 556? > > > > We had an 8090 in Bloomington, front-ending a 3600; later its was > > replaced by a 3400. The 3400/3600 system was in turn replaced by the > > 6600 in 1970. > > Do you know what happened to the VAXen used by IU Bloomington in the early > 1990s? I was at Rose-Hulman at the time, but many of my friends were > going to IU. I remember there being a couple of VAX/VMS systems like > ROSE, JADE, and AQUA <?>. Yeah, those sound like some of the names I've seen, although that was after my time. But Greg Travis has an interest in these machines, his web site is: http://www.prime-mover.org/ClassicComputing/index.html But while he mentions the VAXen, he doesn't have pictures or state he's got one or more of them, so you might wan to ask him for further info. Regards, -doug q

23 years, 1 month

Jay West?

by cmcmanis＠mcmanis.com

Hi, sorry to waste bandwidth here. Jay did you get my email re the HP Extender? I've not heard anything .... --Chuck

23 years, 1 month

Talking 'bout shakin & quakin (was Re: Storage of computer an d parts in the residential area)

by dhquebbeman＠theestopinalgroup.com

> ObClassicCmp: What sort of computer systems have the US Geological Survery > used historical to monitor earthquake activity? They're probably still using an IBM 605...

23 years, 1 month

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test-drb June 2001