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 ...

At the time, his school had just two IBM 029 keypunch machines. One of them is shown in the upper right and it uses a keyboard to choose which parts of each card should be punched out. This was ...

Here is a picture of an IBM model 129 keypunch, for those of you who may not have ever seen one. This is the keyboard layout of a 129 keypunch.

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 ...