On Tue, 6 Apr 2021, M Douglas McIlroy wrote:
IBM famously failed to buy the well-established CP/M
in 1980. (CP/M had
been introduced in 1974, before the advent of the LSI-11 on which LSX
ran.) [...]
And unlike the popular urban myth, Gary Kildall was not out playing golf
when IBM tried to contact him.
-- Dave