My mum was a programmer (although that wasn't the term) back in the age of punch cards.

I don't know how people programmed during this time. There was at least a day between handing something in and getting the results.

I can't imagine the frustration of finding out you did whatever the equivalent of missing a semi-colon out was.

My mum has a different disposition to me, I don't think I'd have survived as a programmer back then.