On Fri, Dec 27, 2019 at 1:39 PM Paul Koning <paulkon...@comcast.net> wrote: > You mean real RSX, not POS?
So, IIRC, P/OS was built on top of RSX11. It was the menu system and application framework, but under the covers, it was all RSX11. I remember if you had the (development option?) you could drop to a DCL prompt and do whatever you liked with it. > > 1) I'm assuming RSX-11m is where I should be focusing my work - even > > though my personal systems were RSTS based, (with an occasional boot > > of RT11 to test stuff) i feel RSX-11m is the more 'complete' and > > modern OS (contextually speaking). Does this make sense? > > Not necessarily. It depends a bit on what you want to do. As Johnny points > out, if you want TCP/IP, the only RSX will do thanks to his work. (Or Unix I > suppose, but I assume we're talking DEC operating systems.) If you want to > write device drivers, RSX or RT are options, RSTS is not. (At least not in > the sense of something you can do from documentation -- it *can* be done and > has been but unless you were part of the RSTS/E engineering team it's quite > tough to pull off.) If you want something really fast and skinny, RT-11 is > the obvious answer. RSTS/E of course is the place for traditional > timesharing. > > If you are looking for places to run application programs you might have > lying around, RSTS/E is probably a very good answer. It has both RT11 and > RSX emulation that's quite solid. Some real time features may not be great, > though they should be faked adequately. For example, RSTS doesn't have ASTs > or asynchronous I/O (except some disk and tape I/O in V9.0 and later) but the > emulation will fake it. Similarly, you can run user interfaces that feel > like RT11 or RSX, at least superficially. And DCL in V9 or V10 is very good. It really does come down to "what do I want to do with this" doesn't it? I'm not a strong programmer outside of high level languages (though I know a half dozen assembler variants) I was in college when I started most of my DEC experience, and that was all on 11/730's. Vaxen running VMS. I wrote a ton of stuff in BASIC-11 that used ReGIS to display stuff via the GIGI terminals. When I worked for a DEC reseller later, the Pro/350's we had ran a bunch of ReGIS demos that were awesome. I think my ultimate goal is to have a GIGI (or, I suppose, anything htat supported ReGIS, which includes a VT240 I believe) connected to the PiDP11 running graphics stuff. RSTS/E or RSX11 will do either of these things just fine I think. I guess mostly I want DCL, EDT, ability to telnet in, and ultimately a ReGIS terminal. Oh, and if we're talking ponies, if I could play Empire... one last time... :) :) :) Right now I'm focusing on finishing up the PiDP11 front panel - hopefully that'll be in the next week, then i'll have my blinkenlights :) -- Dave Shevett shev...@pobox.com _______________________________________________ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
