71-04-06_007 appeared in a loose photo album part of the Dr. Donald Dr. Cowan fonds [GA165-8-167] with the following caption: " KEYPUNCHED CARDS. At the University of Waterloo, most programmes are submitted to the computer on keypunched cards. Normally, each instruction is keypunched on a single card so that a deck of cards represents the programme. Facilities for punching cards are located in rooms adjacent to the programme preparation rooms."