It is the medium by which people communicate with computers in the olden days. Computer programs are written in punched cards, input data are also written in punched cards. There was a special machine called "card reader" to interpret what were in the punched cards and convert them into machine readable form.
Punch cards store data. That data can then be analysed by feeding the cards into a punch card reader.
Do not punch out the time card and report the incident to your immediate supervisor
The Punch Card application works best with the Mac operating system, but the application will work with any operating system. The Punch Card application works with the iTunes program.
because you gotta have a punch line
54 million
22 columsand 8 location
22 columsand 8 location
An electronic punch card system was the first data entry system for computers. Cards were punched with holes according to the information that was stored or directions for the computer. The card was inserted into a card reader and the data was collected. Factories still use a type of punch card system with their manual time cards. Only with the time card, information is printed on the card instead of holes punched.
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punch card
Hollerith
Hollerith