A punch-card data entry machine. A deck of blank cards was placed into a hopper, and, upon operator command, the machine fed one card to a punch station. As characters were typed, a series of dies ...

As an experiment to re-create those features in a more modern system, [Michael Kohn] made a punch card-like system based on LEGO bricks that stores machine code instructions for a 65C816 CPU ...

The holes were punched by a human operator at a keypunch machine or on a stand-alone card reproducer. Punch cards were fed into computers by card readers. Punch cards were synonymous with data ...

To punch a number on the card, a machine made a hole in one of the bottom ... for example. A card reader was relatively simple. Most readers used a series of wire brushes that the card moved ...