test-drb

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101090 discussions

by jnc＠mercury.lcs.mit.edu

> From: Philipp Hachtmann > Very enlightening. > You're hoarding interface ICs with commercial second thoughts If you think either Guy, or Dave and I, expect to make much money selling the QBUS/UNIBUS boards we are working on, you are seriously confused. None of us are in this as a money-making exercise; there are easier ways to make a lot more money. And as to the hoarding, if you'd like to buy up a couple of thousand yourself, >from that miniscule stockpile of 30K units that Guy and I have left out there for you all, please let me know, and I'll expidite over a name, phone number, and email for you to contact. Noel

9 years, 3 months

PDP11GUI 1.48.5

by j_hoppe＠t-online.de

Guys, there's a new release PDP11GUI 1.48.5 Some enhancements: 1. "Disk Image Read/Write": - Now compression of 2word patterns (32 bit patterns), did reduce download of a RSX-11 system disk from 40h to 6h. - Fix for PDP-11/44 console firmware v 3.40: ignore "(Program)" output after driver start. 2. Terminal windows now beeps on char, necessary for some endless XXDP diags. Download from https://github.com/j-hoppe/PDP11GUI/releases/tag/1.48.5 Web: http://retrocmp.com/tools/pdp11gui Enjoy, Joerg

9 years, 3 months

For sale 128K Core RAM Industrial PDP 11/40 Massbus System

by jnc＠mercury.lcs.mit.edu

> From: Ed Sharpe > was Unix or C the one developed on the 11/20? Both. Unix Version 1 was written in PDP-11 assembler, for the -11/20; although that was a re-write of an earlier version written in PDP-7 assembler. C was developed from B in good part because the word address model of B (inherited from its ancestor BCPL) wasn't a good match for the PDP-11's byte addressing model. More here: https://www.bell-labs.com/usr/dmr/www/hist.html https://www.bell-labs.com/usr/dmr/www/chist.html > From: Christian Corti > I think the IP stack needs separate I/D and more memory I read that the networking code in 2.x uses Supervisor mode (apparently it needed more address space than was available with only kernel, even with split I/D). Noel

9 years, 3 months

Some pages from the 360-40 Development Manual, Hursley

by steven＠malikoff.com

I've pdf'd half a dozen pages of the 360/40 development manual from IBM British Labs at Hursley UK, early/mid 60s. I wish I had more but these only survived because dad used to bring home binders with these single-sided pages for us kids to draw on, and my parents kept them. They may not even be from the same document, but it's just for interest's sake. http://web.aanet.com.au/~malikoff/misc/IBM_360-40_Development_Manual_fragme…

9 years, 3 months

DEC DS10L Fix CPUFan!

by rlloken＠telus.net

On Sun, 30 Oct 2016, Jon Elson wrote: >> Thank you for the tips, i will see if i can open it up in someway, the fan >> is kinda like a laptop blower style, but a bigger version of it :) I think >> i will need to buy new bearings for it when i have read on google about the >> fan. You never know until you try. Anyway, the Alphaserver 4100 has four midsize muffin fans and I found them trivial to take apart and trivial to replace the bearings which were a standard off the shelf part. It was easier to fix the fan than it was to replace them since DEC had a custom fan with a speed sensor built in that proved impossible for me to find. It changes from model to model and generation to generation. -- Richard Loken VE6BSV, Systems Programmer - VMS : "...underneath those Athabasca University : tuques we wear, our Athabasca, Alberta Canada : heads are naked!" ** rlloken at telus.net ** : - Arthur Black

9 years, 3 months

DEC DS10L Fix CPUFan!

by danielolsson＠linuxmail.org

Hey Jon! Thank you for the tips, i will see if i can open it up in someway, the fan is kinda like a laptop blower style, but a bigger version of it :) I think i will need to buy new bearings for it when i have read on google about the fan. /Daniel

9 years, 3 months

raytheon 706 computer users manual at SMECC

by COURYHOUSE＠aol.com

Don't be nasty Al! I was willing to scan the addendum and covers if needed. I also did not know if others with interest needed...I am glad the book is scanned already as I do not care to blow mine apart... glue backing gets pretty brittle on these things. The addendum is a loose pamphlet that was just with the manual In a message dated 10/30/2016 11:20:03 A.M. US Mountain Standard Tim, aek at bitsavers.org writes: BFD On 10/30/16 11:03 AM, william degnan wrote: >> I see bitsavers has manual but not pmphlet.Also there is no color front >> and back cover

9 years, 3 months

raytheon 706 computer users manual at SMECC

by COURYHOUSE＠aol.com

I am sorry Bill...I have no idea what to do to authenticate help? details? thanks Ed# In a message dated 10/30/2016 11:03:41 A.M. US Mountain Standard Tim, billdegnan at gmail.com writes: Ed, I have a little 703 and 706 in my library under Raytheon. Clearing out my spam folder I see your recent messages to cctalk. Here is why your emails are going into the spam box, see if you can authenticate your email address. Bill *Why is this message in Spam?* It has a from address in aol.com but has failed aol.com's required tests for authentication. On Sun, Oct 9, 2016 at 11:45 PM, <COURYHOUSE at aol.com> wrote: > We have in the library: > "raytheon 706 computer users manual" > at SMECC. > > Wanted to see if it was online somewhere. > > Nice shape tight binding with an additional errata and addendum > pamphlet accompanying it. > > I see bitsavers has manual but not pmphlet.Also there is no color front > and back cover, which > if you have the computer is cool artwork for a display. - > > Anyone with a 706 out there? > > Ed# _www.smecc.org_ (http://www.smecc.org) > >

9 years, 3 months

raytheon 706 computer users manual at SMECC

by COURYHOUSE＠aol.com

We have in the library: "raytheon 706 computer users manual" at SMECC. Wanted to see if it was online somewhere. Nice shape tight binding with an additional errata and addendum pamphlet accompanying it. I see bitsavers has manual but not pmphlet.Also there is no color front and back cover, which if you have the computer is cool artwork for a display. - Anyone with a 706 out there? Ed# _www.smecc.org_ (http://www.smecc.org)

9 years, 3 months

mc68010+mc68451 Unix source?

by seefriek＠gmail.com

From: Al Kossow <aek at bitsavers.org> > > the will probably be 68000 > > unisoft kernels i've used weren't 010 with the 451 > Dumb question...did the '451 have a mechanism to work around the instruction restart issue in the 68000? Or was there some other way that was handled? > i'll have to dig around for what bits of the 451 kernel i still > have around. unisoft kept the mmu parts pretty well isolated since > the did so many hw ports I'd be grateful. KJ

9 years, 3 months

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