In 1st professional job, in the late 80s, my first boss/lead did not know how to use a text editor. Punched cards is all he knew and the main system did not even feature a text editor (we actually compiled programs on one machine, then the compiled output was migrated over). Though there was a utility that emulated punched card input (and this was on Burroughs hardware). But he could perform a randomizing routine in his head.

Most all of the old-timers used pencil on coding sheets like displayed in this article and were aghast at us young whipper-snappers that entered code directly into the terminal.