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1 day agoWell, it might or not be a line of code - depends a lot on the language. It’s 80 bytes, and a byte is one character. You could have continuation cards if your line was more than 80. That wasn’t ever needed for assembly language, rarely for Fortran, but very common for COBOL.
I remember our first personal computer had 40 columns on the screen, but we ended up getting an 80 column graphics card for it.
I taught myself basic, but the first language I took in college was fortran, and it was on cards. A bit of an aberration: they had moved on to somewhat more modern equipment, but the lab was being upgraded, so they reverted you the card system for a semester temporarily. It was out of date, but not wildly so at the time.