Incidentally, the Unisoft m68k port of SVR2 at the core of A/UX was also ported to the Perq-5 in 1986/1987, to create the Crosfield Studio 9500. Perq had just folded, but a core group of ex-Perq employees worked with a team from the UK company Crosfield Electronics to take the machine (which at that time existed only as a wire-wrap prototype) through to production. I was a member of that team and I have fond memories of sitting in a basement office in Pittsburgh surrounded by kernel listings (with a very puzzled look on my face). Just a small footnote in Unix history... -- Roger