On Wed, Oct 9, 2019 at 7:30 AM <reed(a)reedmedia.net> wrote: You can find images at: https://multicians.org/drv-bull.html (says its a GE-645 installed in Paris) https://multicians.org/mulimg/radc-bldg3-a.jpg (ROME building 3 GECOS/Honeywell systems) https://multicians.org/645artist.html (weird artist's conception) In general, there's several images on the multicians page. In my talk I found one of a later Honeywell system that I mistakenly thought was a 645. Great slides. Good detail on the bell-labs stream of innovation (better than my talk by far, I think). Great use of early manual artifacts to drive the story telling. It's clearly only slightly related to my talk and that it was done from scratch with at most an element or two from my talk that could easily have come from this list instead. So some feedback: The slide that has LSI-Unix is missing mini-unix. If you look at the AUUGN news letters, that's mentioned much more than LSI-Unix, so it was out in the wild. CB-UNIX had its origins in SCCS Unix, which was derived from a ~1st edition Unix for a switch (SCCS here is Switch Control Center System) done by New Jersey Bell in 1972. It took in snapshots from research unix from time to time. After V6, CB-Unix 1.0 was done based on it, with its additions in the areas of IPC and enhancements for production systems. After V7, there was a 2.x series. This was later merged with System III / Unix/TS 3.0 to produce what would become System V (I found conflicting accounts of whether this was done in Unix/TS 4.0 (never released outside of bell labs) or in Unix TS 5.0). The merges were what we'd call "cherry picks" today: the IPC features and some minor other things were re-done for the Unix/TS environment and would become what we call today System V IPC. CB-Unix had infrastructure to port to multiple CPUs, but really only ran on the 11/70. The IPC system was called maus (pronounced mouse, evidently). We gave man pages and source for it in PDF form in the TUHS archive. I'm slowly plowing through OCRing the sources... All this work was done in Columbus OH. Unix/TS targeted time sharing systems that developers, secretaries, etc used. CB-UNIX targeted call record collection systems and similar "production" systems. MERT is interesting... It ported V4 Unix to run under a PDP-11 hypervisor... It was later called UNIX/RT and merged code from V5 and/or V6 (the recollections differ), but not V7 as the system call ABI changed for that. It was cancelled in favor of Unix/TS, but hung on to life, was ported to the 3B2 and later systems to become DMERT... There's hints of this scattered in the different bell labs technical journals and in the TUHS archive of recollections of early unix from the 80s on usenet. I'll have to go through the PWB stuff in more detail than I have time right now. I'm unsure the thing you labeled as DISPLAY-2 is the DISPLAY-2 or the standard Option 340 display. I know people on this list said it was a display-2 (maybe my early slides did as well). Based on pictures in the PDP-7 manuals, I think it was the 340... Where are you giving it? Warner

On Thu, 10 Oct 2019, Lars Brinkhoff wrote: https://www.tuhs.org/Archive/Distributions/Research/McIlroy_v0/03-scope.pdf Jump down to page 20 and more. Also see some of the PDP-7 assembler code in same directory about "G-2" and "graphic-2" (keyboard and display) etc.

On 10/9/2019 12:47 PM, Lars Brinkhoff wrote: Lars, you need to be more of a link hacker ;) https://multicians.org/mulimg/martin-widrig-645.jpg