Since the punch side of the card reader-punch did not edge-print the characters across the top of the cards, one had to take any output decks over to a separate machine, typically an IBM 557 Alphabetic Interpreter, that read each card and printed its contents along the top. Listings were usually generated by punching a listing deck and using an IBM 407 accounting machine to print the deck.
since the punch side of the card reader-punch did not edge-print the characters across the top of the cards one had to take any output decks over to a separate machine typically an ibm 557 alphabetic interpreter that read each card and printed its contents along the top listings were usually generated by punching a listing deck and using an ibm 407 accounting machine to print the deck