And even with CRT's, with modern computers. I had a vintage '99
machine now replaced by a vintage '05 machine, both with CRT's, and I
know that when the machines went to sleep (blank screen) the CRT's
stayed cool. Then, you did say "screen savers"... I guess if you
configure your PC in order to watch bouncing globes on a CRT during all
its idle hours, that's your business.
The reason for changing the images was to save money. CRTs were
fucking expensive and getting a .RUN FOO burnt into the upper
left hand corner was not a Good Thing.
OTOH, I can see that in a modern office building, there must have been
some time window when concern about the power consumption of 1000's of
idling CRT's would have been a legitimate concern.
Yup. Whenever I got the call to power down to prevent blackouts
or rolling xxxxouts, my first task was to turn off all TTYs in
empty offices. Then I'd go to the computer room and turn off
unessential gear..which wasn't very much...that wouldn't be damaged
if they got cold.
/BAH