I once worked with an IBM sysadmin who modded and Amiga to act as a 3270 console.

lots of mainframe time and cobol dumps for me.

Despite using cards on my first job for JCL (job contrl language) for submitting runs on the mainframe I was totally surprised on my second job when the gave me a program in a whole box of cards (burroughs mainframe....because I worked for a bank and burroughs made the best check sorters)

In the Coast guard I booted a PDP 8 or 9 in octal vis buttons before loading a job on a paper tape.
Same coast guard gig, (oceanographic research technician on a research ship) I put tape marks on tape using little silver stick labels

and go go back further..... I could do complex chemistry cals faster with a slide rule than the guy who bought the calculator could. that went out the door when the math teacher got an HP45

so classic and vintage in calculation also still have 2 slide rules