Question to think about.

[RMS%mit-oz at sri-unix.UUCP]

Of the operating systems that you think are widely used or influential or
interesting, which ones were started with the specific goal of making
a profitable software package?

Of the same operating systems, which ones do you like?

Suggested list to start with: Tenex/Twenex, Unix, Multics, ITS, VMS,
CP/M, OS/360, RT-11, RSX-11, GCOS, VM-360 (CP-67), WAITS.
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