From mboxrd@z Thu Jan 1 00:00:00 1970 From: pechter@gmail.com (Bill Pechter) Date: Thu, 18 Nov 2010 14:26:39 -0500 Subject: [TUHS] pdp11 question In-Reply-To: <1290106759.945.for-standards-violators@oclsc.org> References: <1290106759.945.for-standards-violators@oclsc.org> Message-ID: Actually the 11/780 and 11/785 used an 11V03.(I believe they had either 12 or 16k of memory to start and when upgrading to the 11/785 the console was upgraded to either 16 or 28k. The OS was a very stripped down one. It used an RT11 filesystem, but I don't know if it was RT11 based. I was told it wasn't. The 11/750 was 8085 (IIRC) based. The 11/730, I think, used an 8088 or 8086 The 8600/8650 used a T11 chip on a special board and ran a version of RT11 IIRC. The later (85xx) Vaxes often used left-over Pro350's and later Pro380's as VAX consoles. The biggest problem with RT11 on the Pro is they had to make the bitmap display emulate a DEC standard terminal. (Not sure if it was VT100 or just VT52 compatible...) I gave away my Pro350. They'll get my Vaxstation when they pry it from my cold dead hands. (Or my wife wins the argument). Bill Pechter been a long time since Field Circus... On Thu, Nov 18, 2010 at 1:57 PM, Norman Wilson wrote: > Just to loop things around a bit: > > Some of the larger VAXes used small PDP-11s (and their > bastard offspring) as console processors. > > This started with the very first VAX, the 11/780, which > used an 11/23 as a console. The console ran a stripped-down > system, possibly based on RT-11 or RSX-11, I forget (and > am typing this on a train in the Outer Mongolia part of > Texas where it's hard to look up references). > > I don't know the whole list of what was used as a console > for different VAXes, but I do remember that the Nautilus > series (8500-8550-8700-8800) used either a Pro/350 or a > Pro/380, running P/OS, which was slightly more satisfactory > than the rude English non-computer expansion of PoS might > imply, but only slightly. Especially for those of us who > wrote code to fit into UNIX on the VAX and talk to the > console processor. > > I also vaguely remember that although Digital were > reluctant (at least early on) to make an RT-11 that would > run on the Pro-series systems, someone made a UNIX for > those systems. > > I never knew a lot about this stuff and have forgotten much > of what I did know, but perhaps my words will trigger others' > memories. > > Norman Wilson > Toronto ON > _______________________________________________ > TUHS mailing list > TUHS at minnie.tuhs.org > https://minnie.tuhs.org/mailman/listinfo/tuhs > -------------- next part -------------- An HTML attachment was scrubbed... URL: