test-drb May 2005

test-drb@ccmp.vtda.org

248 participants
723 discussions

wanted: IBM Series I display model 4978 (more...)

by billdeg＠degnanco.com

Hi - I am in Wilmington Delaware and I am currently working to restore an IBM Series I system. I am writing to see if there is anyone in the Mid Atlantic USA with a working spare IBM 4978 display terminal. From the assembled documentation it may be possible that any of the following terminals will also work with appropriate system attachment card(s): IBM 3101, 5250, 5251 (model 1 or 2), 5252 (model 1 only), 4980 (with #1250 "multidrop work station attachment card"), or 3161/3163 ASCII display station (with RS-422A card) may also work. System 36 terminals in general are not compatible (it appears). If there is a way to hook up an IBM PC w/ monitor to a series I that would be welcome information. Inventory: qty) description 2) 6' IBM 4997 Rack Units with shelves to house the processor and peripherals. 1) IBM 4956 (I think rev K) Processor; See also * below. 1) Cambex Corp Model 80810 2-tape drive storage device (no tapes) 1) IBM 4962 8" disk drive (w/ 3 boxes of software) 1) IBM 4967 Hard drive 1) IBM 4963 Hard drive 1) IBM 4963A Hard drive 1) IBM 4978 display station and keyboard (display is bad, single horizontal line only.) 12) Series I system software/hardware manuals "standard 3-ring binder sized" 20) Series I system software/hardware manuals (tall, blue, with IBM written on them) There is documentation for all components, plus service logs, software documentation, installation instructions, etc. Pretty complete. Misc. papers and other documentation and receipts. 3 boxes of IBM software on 8" disks, including diagnostics for hardware. 1 box of cables and jacks for additional display stations/terminals 1 box of printer ribbons (no printer) product literature and period IBM sales circulars, etc. * The 4956 Processor is full of the appropriate cards for the peripherals (hard drives, tape drive, terminals, etc.) The system appears to have been upgraded at least once. I have been able to cable up most peripherals to the matching processor cards. I do not plan to power up the system at this time. I have cleaned each subsystem, but overall it was "clean enough" already. Most of the wear is on the rack unit and shelves; dings and the like. The peripherals do not appear to be damaged. That what when I tried the terminal....doh! You can contact me directly - billdeg at aol dot com

19 years, 2 months

Disk archival techniques

by dwight.elvey＠amd.com

>From: "Randy McLaughlin" <cctalk at randy482.com> ---snip--- > >Every battlefield since WWI has had "spare headsets" laying around, usually >from damaged radios. > > Hi Even so, they had relays then. One can make a useable head set with a bar magnet, coil from a relay and a tin can. ( Add something to stick things together with. There are too many possibilities here to even speculate! ) Dwight

19 years, 2 months

OT: Attention Sellam Ismail

by KParker＠workcover.com

Apologies for the OT. Hi Sellam. You contacted me off list and I've tried to reply a few times to vcf at siconic.com but its bouncing with Remote host not found. Either the address is wrong, the Internet has gone pear shaped (most likely explanation) or your mail server is ??? ++++++++++ Kevin Parker Web Services Consultant WorkCover Corporation p: 08 8233 2548 m: 0418 806 166 e: kparker at workcover.com w: www.workcover.com ++++++++++ ************************************************************************ This e-mail is intended for the use of the addressee only. It may contain information that is protected by legislated confidentiality and/or is legally privileged. If you are not the intended recipient you are prohibited from disseminating, distributing or copying this e-mail. Any opinion expressed in this e-mail may not necessarily be that of the WorkCover Corporation of South Australia. Although precautions have been taken, the sender cannot warrant that this e-mail or any files transmitted with it are free of viruses or any other defect. If you have received this e-mail in error, please notify the sender immediately by return e-mail and destroy the original e-mail and any copies. ************************************************************************

19 years, 2 months

Another part data sheet request

by dwight.elvey＠amd.com

Hi All Here is another request. I'm looking for at least the pinouts for the following parts made by Western Digital ( I think ): WD1100V-01 WD1100V-03 WD1100V-04 WD1100V-05 WD1100V-12 These have various functions related to disk I/O. Thanks Dwight

19 years, 2 months

mini versus micro?

by aek＠bitsavers.org

A "microcomputer" is defined as a computer having no more than two microprocessors used for general purpose processing within the computer. -- I prefer the term "Consumer Computer" It is/was the kind of machine you buy in a retail store. The term minicomputer originated in the early 70s to classifly a type of sub $50000 computer that could be purchased by departments (as opposed to having to go though corporate DP approval) DEC and many others sold these types of computers earlier than the 70s, but at the time they weren't called 'minicomputers'. http://en.wikipedia.org/wiki/Minicomputer has an interesting definition, though I disagree with some of the claims made there.

19 years, 2 months

It's been a hell of a day! HP 9845/2x i8008/Sage II/2x Grid/TI Silent 700/Alpha Micro

by rigdonj＠cfl.rr.com

What a day! I've been on the go non-stop for over 12 hours but I've made some GREAT hauls! First I went to tiny hamfest in a nearby town. Sold a LOT of coax cables there even though I hadn't set up. People were asking for cables and I had a bunch of them in the car trunk that I was going to take to a friend that owns a surplus store so I kept going out to the car and bringing back cables! Then I meet a guy and got to talking to him about hobbies. When he found out that I was interested in vintage computers he asked if I was intersted in a Sage computer. (You KNOW what the answer to that was!) Then he said he also had a couple of Grid laptops in search of a new home. Then asked if I wanted an Apple. I said no but then he added that it was one made for business. I asked if it was an Apple III and he said yes! Then found out that he also had a HP 9845 that needed another home! I found out that he lived near where I was supposed to be headed so I made arrangements to meet him later in the afternoon. Then went to Melbourne and stopped at an electronics scrap yard that I frequent. I quickly found a TI Silent 700 terminal in a transit case. Then checked a second transit case and found a "Micro 5000" made by Harris Corp. I opened it up and whatta ya know! an intel 8008 CPU, eight 1101 RAMs and a bunch of 1702 EPROMS! Definitely a keeper!!! Searched through the scrap bins and found an industrial looking chassis that has the same computer in it. Wow! My first 8008 computers and TWO in one day! Found one more but it was almost completely gutted but I did get some more 1101 RAMS and some early 70s TTL ICs. (yippee! spare parts!) The industrial chassis are marked "50-0300 Simulator" but it looks like the same board in a different package. These look like some kind of data logging equipment. In the same pile I also found a Televideo 910 CRT Terminal Installation and User's Guide, a Silent 700 Operating Instructions book and some other docs. Looked around some more a found a buttload of the twist lock power plugs like those used on the old Tektronix equipment and some Intels. Needless to say I left happy. Next I went to the surplus store and sold him a trunk full of cables that I had picked up somewhere else for nothing, $$$$ :-) (Don't worry, he'll get it all back in sales. I'm down there at LEAST once a week!) While there I found a half a dozen keyboards with the switchs and keepcaps like those used on the Intel and a lot of other old SBCs. The same boards also have some nice gold and purple M6820s and 6821s. Also got a phone call while I was there from an old friend that had a bunch of old computer stuff that he'd found and he said he was going to be in my neighberhood later today. (Aren't cells phones great!) Also while there I found a package of Davong Multi-OS for the IBM PC and XT. I've never heard of this before. Does anyone know anything about it? Left there and went to see the guy that I'd meet that morning. He gave me a ***MINT*** Visual 50 terminal, a MINT Sage II computer with ALL the docs, a working HP 9845B, a stack of manuals for the 9845, a couple of HP catalogs, a promise of a pile of early Byte magazines when he can dig them out, two Grid laptops, a service manual for the HP Vectra LS-12 laptop computer (HP sent it to him by mistake. It's probably one of those service books that HP won't admit that they ever made.) He still "owes" me the Apple III and a second set of docs for the Sage :-) FINALLY went home and got to sit down for the first time since 6:30 AM! Then called up the guy that was visiting over in my neighberhood and went to see him. (Switched cars first since the first one was overflowing!) He gave me an AlphaMicro 2000M along with some other odds and ends. OH! and some original disks for my Rubicon CPM machine!! I found out that the company that he works for used to be an AM dealer/service center so I made him promise to look for any AM manuals, parts, etc left around there. He also knows of an AM that was JUST taken out of service and is complete and 100% functional. He's supposed to check and see if he can get it for me. That's it! Now I just have to unload two cars full of computers and find a way to sneak it all inside before the OL finds it! Happy Hunting! Joe

19 years, 2 months

'goto" gone from computer languages or is it!

by dwight.elvey＠amd.com

Hi I'd suspect that most didn't like the goto because it becomes hard to implement in a structured language. Things like random nesting of subroutines and then goto's to various points can make things really messed up. There are also the problems of allocated memory. Do you keep it or clean it? Forth, like many languages doesn't specifically have a goto but in to Forth philosophy, you can always write your own. Most newer Forths have an error handling method called catch and throw. This tidies up the stacks and still allows one to goto an outer level of hierarchy at random depths, like a goto should. It doesn't work at all to go to a deeper level of hierarchy. I think this is where BASIC gets it self into trouble. Many think of goto as being similar to jmp in assembly. Actually in a high level language, it is more complicated than that. The language tend to lead one to think they can use it just anywhere. In assembly, you are more conscious ( or should be ) of thing like stack depth and allocated space, since you explicitly handle these things. Dwight

19 years, 2 months

Help collecting gear from west of Chicago

by drb＠msu.edu

Dear all, Looking for someone who can "rescue" and temporarily store a PDP-11. It's about 30 miles west of O'Hare, apparently. I won this at auction; the notification didn't arrive, and now that I'm traveling and can't do anything about it, they want the beast out of their building yesterday. The system was billed as a "TU80 tester", and consists of two standard DEC waist-high cabinets; one contains several drives which look like RL02s to my limited experience. (Also, the photo is small, from the side, etc. -- hard to see well.) The second contains what looks like a TU80 and perhaps another disk. There's one tall cabinet with stuff I can't really see well enough to guess; presumably a CPU (+?). There's also a line printer in the background, and a Decwriter. Lined up as you'd install it, this is about 10' long; cabinets are of course about 36" deep. The tall cabinet is about 72" high. Presumably it weighs a metric crapload. :-) I'm in Michigan, so it won't be too hard to eventually come rescue it. Anyone able to rescue this pronto and hold onto it for maybe a month or two? De

19 years, 2 months

Kaypro II system disk?

by doc＠mdrconsult.com

Apropos to the discussion of Don Maslin's archives, I need a bootable disk image for a Kaypro II with the Advent TurboROM (Plu*Perfect Systems) The Advent hard disk formatter would be a plus, but right now I'd be happy just to boot CP/M on the thing. FWIW, it's got one original SSDD floppy drive, a Rodime 252F hard disk and an Advent .5MB RAM drive. It's the v3.0 TurboROM. Doc

19 years, 2 months

DECServer 200 Rackmounts Bracket

by birs23＠zeelandnet.nl

Any interest perhaps here in a bunch of DECServer 200 Rackmounts Bracket ? Part number is 74-33241-01 I have about 16 of them. Also have put some more DEC bits and bobs up on my Old Computer Market. Cheers, Stefan. ------------------------------------------------------- http://www.oldcomputercollection.com

19 years, 2 months

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test-drb May 2005