test-drb November 2001

test-drb@ccmp.vtda.org

247 participants
886 discussions

Fw: Control Data Cyber 960 rescue interest?

by dhquebbeman＠theestopinalgroup.com

> From what era is the Cyber 960 from? 1960's? > Is it considered a supercomputer (in it's day)? Its primary architecture dates from the early 1960s. That was the 60-bit architecture designed by Seymour Cray. But this model also implements a virtual-mode in which the CPU operates in 64-bit mode. The 960 was a machine of mid-1980s manufacture; they were being sold through the early 1990s. Tidbit: "The Cyber 960 and all its peripherals took up approximately 1,800 square feet of space and required over 20 tons of air conditioning to keep cool." -http://www.csustan.edu/oit/banner/cyber.html The Georgia machine: http://www.usg.edu/oiit/pubs/update/spring2000/article5.html GIT was still running PLATO as recently as 1990, but was considering migration to NovaNET.

23 years, 6 months

blinkenlights for everybody - status update (2)

by GOOI＠oce.nl

Hi all. Things are progressing nicely. The core board is tested and works. I get the monitor prompt on the VT220 terminal connected to the RS-232 interface. That means there is also software for it. Go to the updated page http://home.hetnet.nl/~tshaj/pdpsite/homebrew/startframe.html Next steps are: 1) adjust monitor software so it runs without the RAM 5565 chip 2) build the I/O ports interface board 3) write the "low-level" in- and output routines 4) write the "stand-alone" pattern SW (the Cylon-eye on the DATA LEDs) 5) the real work: interface with Ersatz-11 (..John?) The monitor software (e11-6802.zip) already contains some SW but that has not yet ran; it just assembles without errors ... - Henk.

23 years, 6 months

Altair 8K BASIC configuration

by kapteynr＠cboe.com

I have the manual somewhere that explains this. I add a patch that makes the console output appear on the VDM-1. Other choices are teletype, etc. Unfortunately, I have temporarily misplaced this all. I have no idea when I will find it. If anyone else can help, please do so. -Rob -----Original Message----- From: Cini, Richard [SMTP:RCini@congressfinancial.com] Sent: Wednesday, November 14, 2001 12:31 PM To: 'ClassCompList' Subject: Altair 8K BASIC configuration While trying to get the 8K BASIC to work with the Altair emulator, I've figured-out that there must be some way for the user to define, using the sense switches, which I/O ports could be used for the console. Does anyone have the manual for 8K BASIC or handwritten notes on the topic? I need to find the definition of the switches at startup because I'm losing console input on the emulator when using 8K BASIC. Thanks. ========================== Richard A. Cini, Jr. Congress Financial Corporation 1133 Avenue of the Americas 30th Floor New York, NY 10036 (212) 545-4402 (212) 840-6259 (facsimile)

23 years, 6 months

The TECO manuals

by mrbill＠mrbill.net

Finally dug again and found the TECO manuals I talked about a few weeks ago. Two books: The bigger one: (1/2" thick or so) --------------- cover: "decsystem10 TECO" first page: document number: DEC-10-ETEE-D "decsystem 10 TECO TEXT EDITOR AND CORRECTOR PROGRAM PROGRAMMER'S REFERENCE MANUAL This manual reflects the software as of version 23 of TECO" copyright: 1968,69,70,71,72 The smaller one: (1/8" thick or so) --------------- cover: "decsystem 10 INTRODUCTION TO TECO (TEXT EDITOR AND CORRECTOR) first page: document number: DEC-10-UTECA-A-D "This document reflects the software as of version 23 of TECO" copyright: 1971,72,73,74,75 (third printing, june 1975) If there's enough interest, and nobody else has already put these online somewhere, I'll get these scanned to JPG, TIF, or PDF this weekend. Bill -- Bill Bradford mrbill(a)mrbill.net Austin, TX

23 years, 6 months

Fw: Control Data Cyber 960 rescue interest?

by mcguire＠neurotica.com

On November 14, Chandra Bajpai wrote: > >From what era is the Cyber 960 from? 1960's? > Is it considered a supercomputer (in it's day)? This would be a mid-80's system I believe. -Dave -- Dave McGuire St. Petersburg, FL

23 years, 6 months

Fw: Control Data Cyber 960 rescue interest?

by dhquebbeman＠theestopinalgroup.com

Forwarded from COMP.SYS.CDC; please direct replies to the original poster... -doug q "James B. DiGriz" <jbdigriz(a)dragonsweb.org> wrote in message news:<9spg2t$qia$1(a)ns2.i16.net>... > A source tells me the current plan is to sell the UGA Cyber 960 being > decommissioned in Athens, for scrap. Anybody here interested in trying to > save it? Hate to see it scrapped. There can't be that many of them left. > > The University System doesn't dispose of surplus property itself in the > State of Georgia. This is handled by the Department of Administrative > Services. Normally, if no qualifying org. or local govt. puts in for it, > it goes to periodic auctions in Atlanta, Albany ( I think), and > Swainsboro. The last is about an hour's drive from me. > > A non-profit museum, educational org, or research inst. stands the only > realistic chance of getting hold of this kind of stuff before it's > dismembered, manuals and software lost, and scattered out to scrap > auctions. It's highly doubtful it'd be sold as a complete system, but I > could be wrong, so I'm looking into the possibility of setting something > up, or finding an existing party which qualifies, preferably in the state, > or at least the Southeast. Let me know if you're interested in putting > heads together on this. > > Thanks, > jbdigriz

23 years, 6 months

Fw: Control Data Cyber 960 rescue interest?

by mcguire＠neurotica.com

On November 13, Douglas Quebbeman wrote: > http://members.iglou.com/dougq/cdc/cyber960.jpg Anyone have any architectural or performance info for this machine? I assume it's a memory-to-memory vector machine like the earlier Cybers? -Dave -- Dave McGuire St. Petersburg, FL

23 years, 6 months

Corvus Floppy Drive?

by fmc＠reanimators.org

"Curt Vendel" <curt(a)atari-history.com> wrote: > Thanks for the info. If you happen by a Corvus floppy in the future, > keep me in mind, I'd be interested in it. Now if I can find some spec's > on the 4 bus slots it would be fun to try and build a controller. I did a Did you get any disks? The bus slots are similar to Apple ][ slots. In fact I think the Concept hard disk controller is really the Apple ][ Corvus parallel-interface hard disk controller. You probably want to webulate to <http://www.spies.com/~aek/pdf/corvus/> where you will find several scanned manuals including: ConceptHWRef.pdf - the Concept Hardware Reference ConceptServiceMan.pdf - the Concept service manual Somewhere I have a (photocopied) schematic of the 8" floppy disk controller too. I'll see if I can dig that out and scan it. -Frank McConnell

23 years, 6 months

IRC channel?

by jss＠subatomix.com

Is there an IRC channel frequented by retrocomputing types? -- Jeffrey S. Sharp jss(a)subatomix.com

23 years, 6 months

SMD Hard Disks

by pete＠dunnington.u-net.com

On Nov 13, 15:12, Jochen Kunz wrote: > You need a 60 pin flat ribbon cable that goes to the drives in a bus topology > with the last dive terminated. (Much like SCSI) Then you need a separate > 24 (26?) pin flat ribbon cable per drive from the controller to each drive. > Should be easy to get the components and crimp the cables. You might get away with ordinary ribbon cable, which usually has a characteristic impedance around 100-120 ohms, for short distances, but the A cable is really supposed to be 30 twisted pair ribbon cable (one trade name is Twist-n-Flat), characteristic impedance 100 ohms. It's wired pin 1 to pin 1 ... pin 60 to pin 60. The B cable is supposed to be 26-pin flat shielded cable, with a drain wire, characteristic impedance 130 ohms. It's also wired pin-to-pin. The lengths don't matter, as long as they're within the limits: 35 feet for the A cable and 50 feet for the B cables. How useful it is to have the daisy-chain cable shorter than the radial cables, I don't know :-) -- Pete Peter Turnbull Network Manager University of York

23 years, 6 months

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test-drb November 2001