Bonus chatter: Back before VM/CMS, the punch cards were real. I started programming just as punch cards were dying out, but I recall that during the hot summer months, one silly trick to cool off was to go to the service window in the computer room and submit a small job of a few dozen cards. The operators would open the window to pick up the deck, and during that time, you got a brief blast of cool air from the computer room.
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