test-drb October 1999

test-drb@ccmp.vtda.org

216 participants
748 discussions

by philclayton＠mindspring.com

-----Original Message----- From: Mike Szewczyk <SzewczykM(a)hcgi.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Thursday, October 21, 1999 3:26 PM Subject: Hello >This is sort of a test, and a re-hello. I used to subscribe to this list >about a year ago. Hi. I've got more stuff. I concentrate mostly on old >8-bit computer systems. I recall some guys liking old mainframes. I don't >have that kind of space and that's not my background. Anyway. Hi! > > >Mike Szewczyk Hi Mike, Welcome back to the list. I also collect older 8-bit micro's, mostly pre DOS machines. I also don't have any experiance in the mainframe computers, with the exception of my old ENIAC tube computer in my garage. (Grin)! Would be interested in seeing your list of machines. email is philclayton(a)mindspring.com I have about 25 home computers, and another 25 or so business based microcomputers in my collection.. CP/M based computers are my favorites.. Phil..

25 years, 2 months

OT: how big would it be?

by pbboy＠mindspring.com

I know its off-topic but i figured that since most of the poeple on this list work or have worked on the really big stuff you'd know better than most others. Say someone were to home-build a CPU from scratch using only individual components, no ICs only modern descrete(?) components. How big would the CPU be? For comparison lets say it would be an 8080 clone. Any guesses? pbboy

25 years, 2 months

Hello

by SzewczykM＠hcgi.com

This is sort of a test, and a re-hello. I used to subscribe to this list about a year ago. Hi. I've got more stuff. I concentrate mostly on old 8-bit computer systems. I recall some guys liking old mainframes. I don't have that kind of space and that's not my background. Anyway. Hi! Mike Szewczyk Technical Operations Manager Hartford Computer Group 847-934-4461 X4323 847-996-8278 Pager 847-934-0157 Fax

25 years, 2 months

Pascal & FPP

by lemay＠cs.umn.edu

I was wondering if anyone uses the Pascal compiler on the PDP-8, or if anyone actively writes code that uses the Floating Point hardware? One of these days I really need to scan a bunch of documentation in on those two topics... Any suggestion for a good way to do that, possibly with a pointer to some useful software on the web that I can download... -Lawrence LeMay

25 years, 2 months

UK PDP11/73's rescue / help

by danburrows＠mindspring.com

I have a line on at least a couple if not more PDP11/73's in the UK. They should have at least the following BA23, M8190,1 or 2 meg memory, TK50, M7546, M7555, RD53 or RD54. There are a few other boards in them I am VERY interested in that I am prepared to buy the systems just for those other boards. If there is anyone in the London area please contact me off list. ( or willing to make a trip to London area ) At least the above mentioned items will be yours for your trouble. The systems have RSX11M+ loaded I don't know yet if any have DECnet at this time. They will be scrapped if I don't buy them. If I buy them I will not pay to have the entire systems shipped to the states so I am offering them to the list members as basic systems. (I want the VSV21's and other goodies.:) Please include your phone # and when is a good time to call so I can call to discuss details. Please give me your time - I am very used to figuring the 5 hour difference. Thanks Dan

25 years, 2 months

DesqView/X v2.0 Disk needed....

by musicman38＠mindspring.com

Dan, I pretty sure I have in a large box of software a fresh copy of DesqView.. If you still need this let me know, and I will dig the stuff out to see.. Phil... >I have an old Toshiba T3200SXC portable. It's the only DOS based >machine I have left, and the only one, therefore, that will run >my prom-burner software (Don't ask...) and some essential DOS >based utilities. I had it hooked to my network and did things >such as burn "BIOS" EPROMs for my VS3100's. The networking depended >on some of the capabilities of DESQVIEW/X. > >As I said, I'm desparate, and again apologize for the (possibly) OT >stuff. If you have v2 of DV/X around somewhere, or know where I can >get that file, let me know. If you've got a full copy of DV/X you're >willing to sell, and the disks are still readable (:-)), let me >know that, too. > >Thanks! > >Dann Lunsford

25 years, 2 months

PDP 11/23 and 11/05

by rigdonj＠intellistar.net

Hi All, Just got back from another scrounging trip. I picked up a PDP 11/05. Can anyone give me a URL to a FAQ on these or tell me more about them and where I can look up the card numbers? I know next to nothing about PDPs but this one headed for the metal recyclers so I grabbed it. While I was there I found a MEI wire bonder. This is a machine that automaticly attachs the wire leads to the wafers in ICs. This one has been sitting out in the weather and is ruined for it's intended use. It does have a PDP 11/23 in it though. I'm wondering about picking it for the computer and misc parts. Are the 11/23s worth anything? There's some other very interesting stuff in the machine like a video camera and a video recognition system but I doubt it would be possible to transplant that into something else without a good set of technical info. Comments? Joe

25 years, 2 months

Heathkit 3400A information needed

by pbboy＠mindspring.com

As the subject indicates, I'm in need of information on the 3400A, specifically the Illustration Booklet with Schematic fold-out that is referred to in the manual. Also, there was a 3400A up for sale on ebay a while back, including a peripheral expansion system. I've already done an exhaustive search on ebay but came up with nothing, ebay only keeps record of auctions within the past 2 months. Does anyone have any information about this expansion system? I'd like to try to build one. pbboy

25 years, 2 months

DECUS Paper Tapes

by daniel＠internet.look.ca

I am just starting to go through the software I got with the 8/s and I don't know what some of these older tapes did: 5/8-9 [(PDP 5/8) - Tape #9] - Analysis of Variance 5/8-15 - A.T.E.P.O. Program 5/8-45 - Remote Time Shared III System 5/8-54 - Tic Tac Toe Learning Program (figured this one out) 8/8s -77 - Dual Process Sys. Some of these I can tell what they did by the name but does anyone have any information about any of them? (I haven't had time to go through all the documentation yet). Thanks john

25 years, 2 months

Deciphering M792-YB "ROM Diode Matrix" PDP-11 bootstrap

by ethan_dicks＠yahoo.com

--- Kevin Schoedel <schoedel(a)kw.igs.net> wrote: > In article <19991021163116.17429.rocketmail(a)web604.mail.yahoo.com>, Ethan > Dicks <ethan_dicks(a)yahoo.com> wrote: > > > >In my ongoing excavations, I've located a ... M792-YB. The pattern > Looks like only diode=1, right=MSB produces plausible code. > > That's what I did :-) Tiny script using Supnik's emulator. Cool idea. I was going to do it the hard way. > >The eventual goal is to disassemble the bootstrap... > 0: MOV @#177570,R1 > 10: MOV #177400,(R0) > 14: CMP R0,#177344 Thanks, Kevin. Your enthusiastic efforts have saved me quite a bit of time. The code looks OK, suggesting that I didn't post any typos, but the possibility exists. I only recognize (by octal address) certain, common disk interfaces (RL11, RK611, etc.) Can anyone suggest what this might be a bootstrap to? -ethan ===== Infinet has been sold. The domain is going away in February. Please send all replies to erd(a)iname.com __________________________________________________ Do You Yahoo!? Bid and sell for free at http://auctions.yahoo.com

25 years, 2 months

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test-drb October 1999