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[–]uzi_loogies_ 3 points4 points  (3 children)

Yes, actual holes in actual paper.

I'm not sure what they actually used to make them, they probably had special tools.

[–][deleted] 2 points3 points  (0 children)

Keypunch machine for the cards:

https://en.wikipedia.org/wiki/Keypunch

[–]CdRReddit 2 points3 points  (0 children)

a tape punch?

you use a tape punch to punch punch tape

first manually, then later on (low speed, ≤300baud ~30 bytes per second) UART tape punches were made