And back in the 70s we used hand punches to encode EBCDIC characters onto an 80 column punch card to make minor corrections to our COBOL programs. After a whil

And back in the 70s we used hand punches to encode EBCDIC characters onto an 80 column punch card to make minor corrections to our COBOL programs. After a while you could punch out a new card in very short order as your hands grew used to the "shape" of each number and letter.