test-drb May 2013

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XTIDE controller now available

by charger_pete＠yahoo.com

Hello! Do you still have any XT-IDE controllers for sale? Thank you!

11 years, 7 months

An IRIX time capsule...

by elson＠pico-systems.com

A while ago, somebody put an SGI IRIS 2020 out on the loading dock of the computer science building at work, where they often put things they think somebody might want to tinker with. I dragged it over to my building and plugged it in, and the console monitor came up. That machine had almost a Unix shell as the console monitor, you could read files off the disk and such. Well, I took it home and after consulting with some people online who know the model, it was determined that the geometry engine was bad. I found a guy in Germany who had all the boards and shipped them to me for a couple hundred Dollars. I plugged the GE board in, and it booted IRIX. I got the guy who wrote the SGI flight sim demo to send me the source code, compiled it, and it worked. (He has asked me not to name him, as that program is under SGI copyright.) It had a quirk due to using the GE's matrix transforms to do ALL 3D arithmetic, including the "flight dynamics". It would get "stuck" at the 4 main compass points. I never figured out how to recode that to use standard C arithmetic. It was a cool toy, but then 3DFX and similar PC graphics boards came out and Flight Gear was created. The replacement GE board eventually also failed, and although I had plenty of chips to swap to repair it, I didn't have the diags to find out which one was bad. I eventually sold all the boards to a broker to use for repairs. Apparently the Air Force still uses them, I'm guessing maybe for flight simulators. Jon

11 years, 7 months

first unix experiences / was Re: [cctalk] Re: An IRIX time capsule...

by mtapley＠swri.edu

>>>> You never forget your first UNIX. I think it was actually NeXTStep 1.0. A smidgen of TOPS-10 early, some punch-cards on a Cyber ???, a lot of RSX-11M, smidigin of CP/M, lots of TRS-DOS and then Mac OS, some HP-DOS, a smidgin of MVS/VM, possibly just a login onto a Sun workstation, but I really settled in and worked Unix (to run Mathematica, mostly) on the NeXT or on my serial connection to it via my DEC Rainbow. I'm discounting my "use" of the mail server functionality, since about all I ever saw was the mail client, but SunOS/mail may predate the NeXTStep. -- - Mark 210-379-4635 ----------------------------------------------------------------------- Large Asteroids headed toward planets inhabited by beings that don't have technology adequate to stop them: Think of it as Evolution in Fast-Forward.

11 years, 7 months

Manual for CMD CQD-240/TM

by lbickley＠bickleywest.com

I've searched in all the usual spots and haven't been able to find a CMD CQD-240/243 manual. It is a Qbus controller with both single-ended and differential SCSI capability. It looks similar to the CMD CQD-220 (manual on bitsavers) and the CMD CQD-720 (manual on bitsavers) - but has a different switch configuration with more options. Regards, Lyle -- Bickley Consulting West Inc. http://bickleywest.com "Black holes are where God is dividing by zero"

11 years, 7 months

Anyone have a IBM Model 25-286 Riser card?

by raifield＠gmail.com

The 8086 versions of the Model 25 and Model 30 have 8-bit ISA risers, the 25 with a two-slot riser and the 30 with a three-slot riser. The 80286 versions of each have 16-bit ISA risers, again the Model 25 with two slots and the Model 30 with three. I tried plugging the 8-bit riser into the Model 30 286 board, but the system refused to power up. In addition, the Model 30 riser is incorrectly spaced to fit in the Model 25 all-in-one case. Even if I cut the top slot off, the remaining two don't line up at all. It looks like I need the genuine part, which no one seems to have anywhere. Date: Sun, 12 May 2013 17:44:34 +0100 > From: Liam Proven <lproven at gmail.com> > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Subject: Re: Anyone have a IBM Model 25-286 Riser card? > Message-ID: > < > CAMTenCHuWaAxtnBSujB7v1e6aGUhWBSco-quVRoXBCPLD+8eQA at mail.gmail.com> > Content-Type: text/plain; charset=windows-1252 > > On 10 May 2013 22:37, Terry Stewart <terry at webweavers.co.nz> wrote: > >>Besides, the 16-bit PS/2s are 16-bit MCA, not 16-bit ISA. > > > >>Peace... Sridhar > > > > Not all of them. My IBM PS/2 30-286 is is ISA-based. > > That's sort of what we're debating here. Are the ISA-based PS/2s 8-bit > or 16-bit? IOW short or longer, 2-part ISA slots? > > You could resolve the question - which does yours have? > > -- > Liam Proven ? Profile: http://lproven.livejournal.com/profile > Email: lproven at cix.co.uk ? GMail/G+/Twitter/Flickr/Facebook: lproven > MSN: lproven at hotmail.com ? Skype/AIM/Yahoo/LinkedIn: liamproven > Tel: +44 20-8685-0498 ? Cell: +44 7939-087884 >

11 years, 7 months

Printer Format Tape Punch

by n8uhn＠yahoo.com

I have a unisys 9246 line printer that uses a format punched paper tape and don't have the tape. the printer will work with out it. the manual did mention a punch and gave a few generic punch model numbers so one could purchase one.. Bill Folks, Spotted this on E-Bay UK. Now I am sure I must have worked with printers that used a format tape, but I don't remember a punch... http://www.ebay.co.uk/itm/190837106811 Dave G4UGM

11 years, 7 months

The things you find on ebay...

by b4＠gewt.net

I was searching through ebay for some PDP-8/e stuff to show to someone and I stumbled across this: http://www.ebay.com/itm/DL-Lesney-Matchbox-Series-Daimler-Bus-Digital-PDP-8… I have no idea what I have just discovered...

11 years, 7 months

first unix experiences / was Re: [cctalk] Re: An IRIX time capsule...

by dm561＠torfree.net

>From Cromemco Cromix on a Z-2 in 1981, through UNIX V.2 on a CS-420 in the early 90's.

11 years, 7 months

follow up???? - offer - OS/2 for the PDP-11

by other＠oryx.cc

Hello All, I a new subscriber from just a few days ago, and I have spent more hours than I care to admit to going through all of the emails in the online archives. In past lives, I spent a lot of time with OS/2, and even though I don't spend as much time as I used to with it, OS/2 comments still catch my attention. Anyway, to get to the point, I caught this thread (bottom) from 2008 which generated a bunch of comments. The thread was briefly revived in early 2009. If there was ever a final fall out from the thread, I somehow missed it. Was there a version of OS/2 for CPU's other than X86 or PPC? What was ultimately found to be on the tape? Thank you, Jerry ------------------------------------------------------------------ Yes, you read that correctly. I have in my possession a TK-50 tape for the PDP-11 system which contains none other than OS/2 operating system. Many people have claimed this never existed. But I have the tape! I had done a directory dump of it and can supply it. One other person who's checked the directory listing has said it is authentic. I'm not sure what to do with it, and I believe IBM made OS/2 open source, so technically it should be "free" of it's chains maybe someone can turn it into something useful, or just run it and have the most unique PDP on the planet, I don't know... whatever :) anyhow, it's a really weird bit of computing history, and I'd hate for it to be lost. it should be in a museum :)

11 years, 7 months

Control Data 9747

by abacos_98＠yahoo.com

Has anyone ever heard of this drive model? It looks just like the 9746 in the CDC brochure. Maybe a custom interface? I cannot find any specs or info for it. http://www.stargeezer.net/SAM_2775.JPG http://www.stargeezer.net/SAM_2776.JPG http://www.stargeezer.net/SAM_2777.JPG http://www.stargeezer.net/SAM_2778.JPG http://www.stargeezer.net/SAM_2780.JPG http://www.stargeezer.net/SAM_2781.JPG http://www.stargeezer.net/SAM_2782.JPG It was still in its shipping box and by the looks of it, I don't believe it was ever used. Brian.

11 years, 7 months

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test-drb May 2013