On Wed, 23 Jan 2019, Paul Koning wrote:
On Jan 23, 2019, at 1:54 AM, Mattis Lind <mattisl...@gmail.com> wrote: onsdag 23 januari 2019 skrev Brett Bump <bb...@rsts.org>: On Tue, 22 Jan 2019, Paul Koning wrote: On Jan 22, 2019, at 6:00 PM, Richard <legal...@xmission.com> wrote: In article <cabr82sjodd8hhsgzjy8o_l5uqc3j1orjb7ht90vizykjdq0...@mail.gmail.com>, Mattis Lind <mattisl...@gmail.com> writes: I have some DEC EDU material which I can scan if there are interest (and if it isn't scanned already by someone else): https://i.imgur.com/tqmcieK.jpg I'd like to see this one about MINI-RSTS! I remember seeing that before, quite possibly the same data sheet. I never heard of it while at DEC (in RSTS development). Perhaps it was a short lived early (V4 vintage) RSTS marketing exercise. paul Yes. I forgot that I already scanned that one. Here is the mini RSTS flyer in full pdf. http://storage.datormuseum.se/u/96935524/Datormusuem/mini-rsts.pdf Since the other documents are printed around 1972/1973 I guess that this one is the same vintage. /Mattis Paul and I had this discussion before about 12 years ago on Wikipedia: https://en.wikipedia.org/w/index.php?title=RSTS-11&action=history I believe RSTS-11 V4A-12 was probably given the name Mini-Rsts-11 by the marketing department (somewhat the same as MicroRSTS later). MicroRSTS was a pregenned distribution with exactly the same code that came on the distribution tapes, starting with RSTS/E V8.0-06. There are many references to MicroRSTS, but I have only seen 2 for Mini-Rsts (below is a link for our colleges RSTS-11 receipt). http://www.rsts.org/images/minirsts.jpg I know that this original distribution was V4A-12 so the name was probably dropped by the time RSTS/E V5A-21 was released eight (8) months later. BrettInteresting that there is no date on that document. The term "RSTS-11" makes it clear we're talking about RSTS V4 or earlier. For that matter, so does the hardware configuration: a boatload of DL11s for the user terminals rather than a DH11 or DZ11 mux, because V4 only supported single line interfaces. It's not clear if this is V4 or an older version. 24kW memory is a minimal V4 configuration, pretty marginal actually but possibly ok for 8 users max. (In college I used V4A on a 28kW machine, 16 terminal lines, 16 users max though it tended to crash at around 12.) The feature list doesn't mention some V4 (optional) features like "record I/O" so it's possible this was actually V3. I also found the term "PDP-11/21" interesting. Has that been used anywhere else? It's pretty clearly an 11/20 configuration. paul _______________________________________________ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
No, I never saw the 11/21 reference before either. The machine was an 11/20 with 28k of memory when I was working with it. There was a copy of DOS-11 V08-02 (which was the distro medium for RSTS V4A), a couple of data disks and a copy of RT-11 V2 (all RK05 packs). When I got a hold of the machine the RK03 Diablo drives barely ran and I replaced them with RK05's. Some genius in the math department had RT-11 running one day and /ZE'ed the pack. I told him he just blew away the distribution pack (not the DK1 pack). He denied this and showed me how PIP was still running (till he hit control-c). I remember getting a number of DL11's and pulling the caps out so we could make them run (woohoo) all the way up to 2400 baud. I wrote a program that spit the alphabet out to that device until we could get the pot dialed in (away went the ASR33's and in with the VT-52s). It was so much fun at the time considering the rest of the college had 1 TRS-80 and 1 or 2 Apple II's. But Paul was pretty accurate in that I think we had a max of 3 VT52s and the LA36 console. Brett _______________________________________________ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
