[pflenker]

MAD magazine once printed a listing with some non obvious errors in it, introducing my 10 year old self to the concept of a bug.

Maybe now I will have the chance to see a self-made Alfred E. Neuman!

[dole]

I wound up typing that entire listing at least three times before I gave up and never saw the errata. Definitely worth the satisfaction of youtubing or googling the output decades after.

[bcrl]

I remember having to figure out how port magazine and book BASIC code between the various dialects between the various spaces I spent time in. In the 1980s, my uncle first taught me BASIC on an IBM PC. At school we had an Apple ][+ while at home I had a Coco II and later an Amiga. Another friend had a Vic 20, while another had a Commodore 64. Then came QuickBASIC, QuickC, Microsoft C, C on the ICONs, Aztec C, gcc... 6502, m68k, 8086, i386... Learning about the quirks across systems so early on turned out to be an invaluable experience.