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My college classes and my first job used punch cards and I have used a card punch. Some of the perforated tape that was used wasn't paper. Not certain of the exact material. It was closer to a mylar.

I am so old there were no college classes in computing. So I was self-taught.

I used an 024 key punch (that did not print across the top of the card) and an 026 (that did). I used a little paper tape on one machine (a Computer Control DDP-224), but all it had on it was the code to boot up the operating system for it (that I wrote). It appeared three times on that tape that was scotch-taped together into a loop. It was a sandwich with mylar on the outside and aluminum foil in between (better contrast for photo-electric paper tape reader).
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