test-drb

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101090 discussions

by jnc＠mercury.lcs.mit.edu

So, what's the best short name for the pair of machines, the PDP-11/05 and PDP-11/10 (which differ only in the nameplate)? I have generally been calling them the '11/05's, since that's what's on many of the extant drawings, manuals, etc - and DEC seems to prefer the '05' in manual ID's, even when the title references both - e.g. DEC-11-H05SS-B-D is the "PDP-11/05-S, PDP-11/10-S system manual", with the /05 mentioned first. However, for the 11/35 and 11/40, which we seem to normally call the 11/40 (again, following DEC's lead - EK-11040-TM-002 is the "PDP-11/40, -11/35 system manual", with the /40 mentioned first), the /40 is the end user machine. With the /05 being the OEM machine, and the /10 end user one, we (and DEC) seem to have picked the OEM variant in one as the 'canonical' model, and in the other, the end-user variant. Maybe this isn't an issue/problem, but I noticed it, and thought I'd see what (if anything :-) others thought. Noel

9 years, 11 months

VAX 11/730 quickie

by tmfdmike＠gmail.com

Just started working on mine - been a back-burnered project for a long time. Unfortunately all the cables were cut when it was dismantled; I was lucky to grab just the CPU. Got it powered up ok - no drama there. I faked cables to the port on the WCS which drives the console and hooked up my trust VT220 at 2400 baud. Nada. No self-test prompt; no ROM> prompt. Maybe I've messed up the faked console cable; I'll check - already tried obvious things like making sure Rx & Tx were crossed (it's a three wire cable according to the schematics - Rx Tx Gnd; no flow control). But I'd like to know more about the assorted LEDs on the CPU boards; maybe there's a clue there if it's not getting far enough into the self-test to display console output. There's a fair few LEDs on the M8391. But the doc I've looked through on Bitsavers doesn't seem to document their meanings and interpretations. Can anyone help on that point? Hopefully this link works: https://www.facebook.com/photo.php?fbid=10208521465663997&l=867897c786 Thanks Mike http://www.corestore.org 'No greater love hath a man than he lay down his life for his brother. Not for millions, not for glory, not for fame. For one person, in the dark, where no one will ever know or see.'

9 years, 11 months

Offer: HP 1611A logic state analyser with option A80 for 8080 microprocessors

by p.gebhardt＠ymail.com

Hello list, I've had this HP logic state analyzer for many years now, but never found actual use for it and thus never used it. So I decided that a new home would be more suitable for it. The analyzer comes with the option to debug and analyze 8080 microporcessors. Probes are provided, but no manual. However, there is a small command overview on the front of the keyboard. The system completes the selftest and I did let it run for two hours yesterday. No more tests done, but if anybody wants me to do a specific test, then I can do it, provided you explain to me what to do. Pictures are under http://www.digitalheritage.de/other/hp_1611a/ Make me an offer via private reply. Pick-up in Bonn (Germany) or international shipping possible. However, keep in mind that the system weights 13kg (29 lbs), so shipping is not going to be cheap. Cheers, Pierre ------------------------------------------------------------------------------- Pierre's collection of classic computers moved to: http://www.digitalheritage.de

9 years, 11 months

Serial analyzers (was Re: VAX 11/730 quickie)

by ethan.dicks＠gmail.com

On Mon, Feb 22, 2016 at 10:28 AM, Mark J. Blair <nf6x at nf6x.net> wrote: > When I was debugging the connection between my VAX and tu58em on my Mac, I ended up buying an old serial protocol analyzer. Notably, I specifically avoided one with the same type of tape drive; I got one with a nice, reliable 3.5" floppy drive! ;) HP 4952? I have two with tapes from the old days (they contain a formatter, and we did wipe some scratch tapes for storage of our analyzer programs, including a PU Type 2 BIND simulator that filled the program memory, but it worked well enough for us to debug SNA BIND sequences in the absence of a real PU Type 4). -ethan

9 years, 11 months

Wes Clark died yesterday

by jnc＠mercury.lcs.mit.edu

> From: Evan Koblentz Now I'm triply bummed that he was sick, and didn't manage to make it to the last VCF East. He was one of the giants - somewhat unsung, but a giant. RIP. Noel

9 years, 11 months

Who, on this list, Owns / Collects / Plays with an HP1000 A or L series ??

by COURYHOUSE＠aol.com

We will be up for getting one to round out the HP display here When I was in the biz they were out there but we did not sell any parts for them, I remember some developer friends complaining that the A version of RTE version of the os did not have SESSION Let us know if you have one folks even a dead one as it is a physical display only situation *(However if a complete setup running was to be had....that might be fin too!) Ed# _www.smecc.org_ (http://www.smecc.org)

9 years, 11 months

Who, on this list, Owns / Collects / Plays with an HP1000 A or L series ??

by gerardcjat＠free.fr

Just curious. It seems ( at first ) that most collections stops at 21MX ( M/E/F ) era. Am I correct in my view ?

9 years, 11 months

PDP-11/20 vd one that just says pdp 11 what are the date differences?? OEM?

by michael.99.thompson＠gmail.com

The PDP-11 at the RICM says "dec pdp 11" on the system configuration paper label on the back, and "M11 15" and "4720" on the metal tag. Unfortunately it has an OEM front panel. -- Michael Thompson

9 years, 11 months

NeWS video(s) with James Gosling?

by echristopherson＠gmail.com

Would anyone out there happen to know the whereabouts of one or more specific videos that were hosted on the Microsoft research web site maybe 10-15 years ago, starring James Gosling, where he talked about NeWS (Network extensible Window System)? I may even be able to dig up the URL for the video(s) when I get home, but it's been dead for a long time now. -- Eric Christopherson

9 years, 11 months

Wes Clark died yesterday

by cctalk＠snarc.net

http://www.techrepublic.com/article/wesley-a-clark-legendary-computer-engin…

9 years, 11 months

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