test-drb December 2003

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Data sheet for MC6825

by aek＠spies.com

You reversed the last two digits: MC6852, usrt, Synchronous Serial Data Adapter

22 years, 1 month

SGI IRIS 3010 for sale

by vcf＠siconic.com

I'm brokering the sale of the following system. If there's any interest, please send me your offer or questions via private mail. -- SGI IRIS 3010 3D graphics workstation (with the Control Data Corporation logo and Cyber 910 designation) that was used for two years as a demo model and has mainly been in storage since then. It comes fully configured and equipped as follows: 68020 microprocessor UNIX o/s C, Fortran, Basic Windowing and Basic Graphics Library Flight program (serves as diagnostic), demos, and games 128 Mb hard drive 19" monitor with 24 bit color, 8 overlay planes, 1048x780 RGB screen Keyboard, optical mouse and mouse pad Tape cartridge drive, serial ports, Ethernet port, extra mouse The following manuals come with the system: IRIS Series 3000 Owner's Guide Cyber 910 User's Guide (Vol. 1 - Programming Guide; Vol. 2 - Reference Guide) UNIX Programmer's Guide (Vols. 1-4) CYBER 910-300 Administrator's Manual (Graphics Library Manual/User Guide & C Language Reference Manual) IRIS Communications Guide Update Package Version 1.1 GL2-W3.6 Workstation Release Notes TCP/IP User's Guide Learning to Debug with Edge (C Edition & Fortran Edition) Its casings are of steel (with beige paint), and are clean and undented. Includes the original wooden shipping palette with retractable ramp. This unit was manufactured in December, 1987, and was used for two years as a demo model by Control Data Corporation, which owned a big chunk of SGI stock. It was recently powered up and its flight simulator program was run to check the performance. There were no problems encountered while doing so. -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

22 years, 1 month

mail classiccmp@classiccmp.org

by aek＠spies.com

> One thing I don't understand is why there is a preference > to use a .TAP file when an emulator is being used. Media Interchange. You can use a SCSI 9-track drive to create a tape on a simulated system and carry it over to an 11 with a tape drive. If you don't have an MSCP SCSI drive on the 11, other mass storage devices don't have interfaces on the simulated system. If you DO have an MSCP controller, a ZIP drive is the easiest shuttle media. Stick one drive on the 11, one on your system with the simulator, and use John's DO driver to pull the bits over to the simulator's host OS. I with SIMH had the equivalent (esp in the VAX world)

22 years, 1 month

Three Days of the Condor

by SPEDRAJA＠ono.com

Yes, one of my preferred movies about spies of the seventies. Some teletypes, terminals and even Dectapes, i think. Another interesting movie with some old computing items is "The Falcon and the Snowman" (music of Pat Metheny and David Bowie, with Sean Penn and Timothy Hutton). There are some scenes of Hutton in one room of the CIA using old teletypes ASR33. In Science Fiction field, I like two movies specially with some computing interaction: "Colossus", and "The Andromeda Strain". Cheers Sergio ----- Mensaje Original ----- Remitente: Tom Jennings <tomj(a)wps.com> Fecha: Lunes, Diciembre 15, 2003 8:48 am Asunto: Three Days of the Condor > ... opens with some very pretty PDP-8 stuff, a VT52?, a woman mounting > dectapes.... > > The movie of course! >

22 years, 1 month

Data sheet for MC6825

by dwight.elvey＠amd.com

Hi Does anyone have a data sheet for a Motorola MC6825? I believe it is a USART but I can't find anything on it. It is from the late 70's. Dwight

22 years, 1 month

PDP11/74

by pechter＠pechter.dyndns.org

> > >Message: 16 >Date: Sun, 14 Dec 2003 18:52:21 -0800 (PST) >From: "Eric Smith" <eric(a)brouhaha.com> >Subject: RE: Building a PDP-11 for the first time >To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk(a)classiccmp.org> >Message-ID: > <33073.64.169.63.74.1071456741.squirrel(a)ruckus.brouhaha.com> >Content-Type: text/plain;charset=iso-8859-1 > >Antonio wrote: > > >>> I don't know what the performance figures were for the >>> 11/74 either. However, the beast was deemed to be too >>> hard to maintain. Too many cables, too much downtime. >> >> > >That was one of the rumors, but I've never believed it. There's no fundamental reason why it should have been any harder to maintain than any other large computer. I think this was just a feeble attempt by DEC management to come up with an excuse to give customers, when they didn't want to admit the real reason the product was cancelled. > >Yes, it needed more memory cables than any other PDP-11, but it's >utterly ridiculous to think that would be a serious problem. We're only talking about 68 memory cables per CPU for a maximally configured PDP-11/74, compared to 16 for a maximally configured PDP-11/70. >When was the last time you had a PDP-11/70 memory cable go bad? > >The memory cabling was in fact comparable in magnitude to that of a large VAX 11/782 configuration. > > Gimme a break. The MK memory cables were often the cause of multiple problems and the multiport version set up on a bunch of conjoined 11/70-type boxes would've been a nightmare. XXDP+ would've had to be loaded into a shared memory partition and it would've been a large PITA for the systems manager to have to do that while it was running. They could've required a preloaded diag monitor that could've been switched to the down box, though to get around this. Anyway, the 11/782's were large pains only when the SBA interconnects went bad which was a fairly rare occurrance when the machine was fully installed. The SBI cables were about 4 inches long... the 12-18 inch ones were used between cabinets. How many feet of MK cable would that have been! The MK cables were often nicked, cut or just plain and could've been sliced by tiles in multcpu configs... etc. I used 1/4 of an 11/74 at DEC Princeton. A nice pretty front panel and I'd have loved to work on one full-up. But maintaining it would've been a PITA. BIll pechter(a)monmouth.com

22 years, 1 month

up late and working (classiccmp related)

by jwest＠classiccmp.org

Since the wife is out of town, it's a good night to stay up late and work on things classic computer related. I reached a milestone, so thought I'd share :) I now have two HP 7906 drives working flawlessly. 5 more to go. But instead of working on the others, right now I'm going through and running diags on each board in the 13037 controller... meaning of all the 7 or 8 13037 boxes I have, testing each card one at a time in a known working 13037. What fun. Very time consuming, but, when I go to work on the next drive, I can at least know any problems I run into are the drive rather than the controller. I'm also testing all the cards in the drive one at a time with cards from the other drives. Life is much better when you have two of an item to use as a testbed. I do have a 7905 as well... that one will probably wind up on the trading block - after I check it out and make sure it works. Anyone want a 7912? Heavy beast, and HPIB only so I have no interest in it. I think I'm going to go back and change my HP2000 Access system rack configuration. Move the paper tape reader and paper tape punch to the other side of the dual bay rack, and mount a 7906 in the spot where they were. Masochistic I tell ya. Well, this is all a milestone for ME at least, because I've always been somewhat "afraid" of working on 14" hard drives. But I think I'm getting the hang of it :) Well, diags just finished on the ECC board, time for the next card. Cheers Jay

22 years, 1 month

OT: Wanted: P-III Slot 1 133 MHz FSB motherboard...

by dwoyciesjes＠comcast.net

Apologies for the OT message. Reply off-list... Subject says it all. I've got a P-III 733 MHz CPU, but no motherboard to use it in. Anybody have one kicking around? -- --- Dave Woyciesjes --- ICQ# 905818

22 years, 1 month

DG Aviion 88k software/dumping disks...

by drido＠optusnet.com.au

I've got a DG Aviion 4000 (Motorola 88k based) here. I've never had it up and running as it came here without RAM. I want to pull the hdd to use in another machine. Before I reformat this HDD is anyone interested in the software that may be on it? If you're local (Melbourne, Australia) the easiest way would be to take the HDD and give me another 1GB SCSI HDD to replace it. Otherwise what's the easiest way to dump this disk to an image file on a DOS/Windows PC? I don't have anything running linux at the moment, so to do it under linux I'd need to be able to do it without having to actually installing linux... boot from a CD, write the image out to an existing fat32 formatted HDD.

22 years, 1 month

Three Days of the Condor

by SPEDRAJA＠ono.com

Yes ! I din't remember it. And I recorded this movie some months ago and note this detail when I was seeing the movie. Cheers Sergio ----- Mensaje Original ----- Remitente: Christian Corti <Christian.Corti(a)studserv.uni-stuttgart.de> Fecha: Lunes, Diciembre 15, 2003 1:01 pm Asunto: Re: Three Days of the Condor > On 14 Dec 2003, Tom Jennings wrote: > > ... opens with some very pretty PDP-8 stuff, a VT52?, a woman > mounting> dectapes.... > > The movie of course! > > What else ;-) I've recorded it on a SVHS tape for better quality. > You can > even see the woman verifying the start address of 7605 (or was it > 7600?)before pressing CONT. > > Another interesting movie is "The angry red planet", a SF movie > from the > late fifties. The main computer on board of the space craft is a huge > Borroughs tube computer, with operator console and reel tape > drives. It's > fun to see the tubes glowing, at least you get that impression and to > watch the tapes moving. > Does anybody know the model of the computer? > > Christian > > >

22 years, 1 month

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test-drb December 2003