Jacob H. Suter <jsuter@intrastar.net> wrote:
> Both Ultrix and 4.3-Tahoe are commercial, are they not?

4.3BSD-Tahoe (or any other version of Berkeley UNIX(R)) is itself not
commercial, more of research by-product. However, it does require a UNIX(R)
source license, but most major campuses have them (and you can't do SERIOUS
retrocomputing anywhere else). I have recently learned that CWRU has an
acceptable license which is accessible to our department. In fact, our
department used to run 4.2BSD or something like that on a 780, although there
is no way I can locate those tapes. This does tell me, however, that it is
absolutely legal for me to have a copy of Berkeley UNIX(R).

> "Your" OS?

By "my OS" I have meant my branch of Berkeley UNIX(R) with BabyVAX support.

Sincerely,
Michael Sokolov
Phone: 440-449-0299
ARPA Internet SMTP mail: sokolov@alpha.ces.cwru.edu