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 ...

P. Friedrichs] pulled off a hack that greatly improved the process of programming with punch cards. At the time, his school had just two IBM 029 keypunch machines. One of them is shown in the ...

The results indicate that for slower punches, that is, <5 m/s with the punch machine, the benefits offered by a headguard over and above a glove are small. In the range of punch speeds between 5 and 9 ...