A course with mandatory use of punchcards was the only CS course I ever did poorly in. It was IBM assembly language at a community college, and I just couldn't

A course with mandatory use of punchcards was the only CS course I ever did poorly in. It was IBM assembly language at a community college, and I just couldn't deal. I'd built my own computer a few years earlier, and going to punchcards -- where you couldn't even delete a mistake -- was miserable. Later, to avoid other courses with punchcards, I used a combination of Emacs at MIT-AI over the Arpanet, a terminal emulator written in Z-80 assembly and a DEC-10 at my co-op job. It was worth driving 30 miles to pick up printouts to avoid punching cards and waiting hours for my programs to turn around.