Fortran had a 72-column limit on punch cards (the last 8 columns were used to number the cards in the deck). Even when we got VT100's there was some caution abo

Fortran had a 72-column limit on punch cards (the last 8 columns were used to number the cards in the deck). Even when we got VT100's there was some caution about going past column 72 (ISTR some of the VDU's would have a marker at column 72, possibly the compiler gave a warning too).