PDP 11/73 on the Internet

On 04/06/2009 16:42, John Floren wrote: Unless it does something that doesn't work on a KDJ-11 but does on a KDF-11, it should be fine. I *think* I've actually done that. Or maybe i tried and it didn't boot -- the last time I would have tried would have been at least ten years ago. It can definitely run on an 11/34. If you look in the sources, you'll find some references to "small machine" -- ie an 11/34, 11/23, etc. Not everything is possible, though. For example FORTRAN isn't there, nor BASIC, nor vi (because curses isn't fully implemented) but ed is. ISTR there are a few other utilities that are linked (not symlinks, as V7 doesn't have them IIRC) to a proglet that simply prints "Not, as yet, available for a small machine". Or words to that effect. The machine I have came from the Heriot-Watt University in Edinburgh, and was one of their original development machines. They were one of the distribution centres for Seventh Edition, so I got a good system when it was passed on, and a lot of information from the staff there, along with an original distribution magtape and licenses. But of course no TCP/IP or anything like that. I had great fun getting a reasonably modern (for 1992) kermit to run on it, because of the overlays required. I remember one of the first shell scripts (if that's not too grand a word for a three liner) I wrote was a recursive ls (no "ls -R" in V7). The important things all work. Wumpus, for example, runs fine :-) -- Pete Peter Turnbull Network Manager University of York