... I remember how long it took to get used to programming on a printer terminal (a cross between a teletype machine and an IBM typewriter) after using punched Hollerith (a.k.a. IBM) cards for a couple of years. ...
That and screwing up one "punch" on a card and having one's entire batch submission tossed out and having to start from scratch.
Remember the quasi-hermetically sealed computer rooms with ambient temperatures in the parka range?
