Joerg Schilling: BTW: UNOS has been sold to real customers from it's beginning. Was UNIX V8 available outside AT&T? ===== I'm not sure what that has to do with anything. Which of your body parts is so small as to make you insecure, and which UNIX distributions are your body parts drawn from? To answer the question seriously, though: as I think I've already explained here, Eighth Edition UNIX was available under special per-site licensing (a letter agreement) to educational institutions. I'm not sure what the official criterion was: I helped make the tape, but wasn't involved in the paperwork. I believe the total was about a dozen places. A few of them did interesting work with the system that was published e.g. at USENIX conferences (Princeton comes to mind), but most I think never even booted the system up. By then there were other members of the UNIX family that were more comfortable for general use, and people were more interested in the ideas than in the code. And of course we were a research group. We weren't making things for customers. We were sharing our work, to the extent the laywers and our own limited resources allowed. That was the last time the Computing Science Research Center attempted anything like a formal distribution. Any `distributions' after that are just snapshots of a constantly-evolving system. Norman Wilson Toronto ON (Body parts not available on github. Sorry.)