Jean-David Beyer wrote:

unix lower case freaks back then because they could be.



That could be true. Ken and Dennis had a Western Electric ASR37 teletype as
the "console" of the PDP-7 (I think it was) on which they developed the
first version of the UNIX Operating System. Since their ASR37 had a "stunt
box," they could type in lower case if they wanted to.

I passed on the opportunity to get into computers then because the
industry that offered it used Hollerith cards, tape, hand-wired logic
boards, machine sorters... but I did learn about some awesome tricks
with sort/merges done on multiple tape spools. "Cascading Sort" was the
one that is impressive to this day. Had I known of the PDP then rather
than in 1978 when I managed two PDP 11/70s after becoming exhausted from
photography...

Unix is a stroke of genius. PICK is another, but I digress. I am a
photographer again, not a computer weenie.