Brantley Coile: i don't know that it's a squese. a version of v6 ran on an lsi-11 with very little ram. ======= If you're thinking of Mini-UNIX, it's a bit of a stretch to call it `V6 running on an LSI-11.' I think the original LSI-11 had no memory management; in any case, Mini-UNIX didn't use it, but was a throwback to the early days of the PDP-7 and the 11/20 (neither of which had memory management). Only one process could be in memory at a time; to let another process run meant swapping the first completely out of memory. I believe there's a paper in the 1978 all-UNIX issue of the Bell Systems Technical Journal about Mini-UNIX or its immediate predecessor. As I recall, there were additional compromises; e.g. the shell quietly translated a | b to a >tempfile; b <tempfile; rm tempfile because that was much faster than the thrashing that often resulted from trying to let a and b run concurrently. Mini-UNIX might be a simpler starting point to get a system running on a 286. Just don't think of it as full V6; it's not. Norman Wilson Toronto ON _______________________________________________ TUHS mailing list TUHS(a)minnie.tuhs.org http://minnie.tuhs.org/mailman/listinfo/tuhs