On Nov 29, 10:04, Zane H. Healy wrote: Well, it ran on a 48K Apple ][+ or Europlus with the Language Card (which, for those who might not know, is a 16KB RAM card that fits Slot 0, and pages in in place of the ROMs). It's anything but fast :-) However, Apple used it for much of their dealer and service centre diagnostics, so it was used for, and capable of, Real Work. I still have mine somewhere. UCSD p-System was also available for PDP-11's, BBC Micros, Sage II, and quite a few other machines. I've got versions for all of those. Doesn't UCSD still have a web page about it? Probably. Dunno, but the disk structure is different from ProDOS and Apple DOS 3.3, so I'm not sure how you'd deal with that. -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York