While we're on the subject, I'd just like to mention that I have
an original copy of the CP/M-80 version of the MIX C compiler. 5 1/4
floppies in some Kaypro format. Book too. I bought it about eight years
ago directly from Mix to run on my Commodore 128. At first they said they
had no more books but when I sounded really sad, they offered me one with
a "slightly creased" cover (turned out to be quite near perfect, actually)
I think it was $29.95 + shipping. I bought it because I was
taking a c programming class in college and refused to use peecees back
then because I thought the architecture was too crass to bother with an
upgrade.
PS. I'm still M$ free, BTW, but I sold out about three years ago and now
use commodity hardware w/FreeBSD in addition to my pdp11s running 2BSD
jake