punch card
n. card which is perforated in a specific pattern representing certain data to be read by a machine | ||||
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Punch card definition was found in categories: Computer & Internet(1) Language, Idioms & Slang(2) Encyclopedia(1)
Punch card Definition from Computer & Internet Dictionaries & Glossaries
Punch card Definition from Language, Idioms & Slang Dictionaries & Glossaries
| WordNet 2.0 |
punch card
Noun
1. a card on which data can be recorded in the form of punched holes
(synonym) punched card, Hollerith card
(hypernym) card
Noun
1. a card on which data can be recorded in the form of punched holes
(synonym) punched card, Hollerith card
(hypernym) card
| hEnglish - advanced version |
punch card
punch card
n : a card on which data can be recorded in the form of punched holes [syn: punched card, hollerith card]
punch card
n : a card on which data can be recorded in the form of punched holes [syn: punched card, hollerith card]
Punch card Definition from Encyclopedia Dictionaries & Glossaries
| Wikipedia English - The Free Encyclopedia |
Punched card
A punch card or punched card (or punchcard or Hollerith card or IBM card), is a piece of stiff paper that contains digital information represented by the presence or absence of holes in predefined positions. Now almost an obsolete recording medium, punched cards were widely used throughout the 19th century for controlling textile looms and through the 20th century in unit record machines for input, processing, and data storage. Early digital computers used punched cards as the primary medium for input of both computer programs and data, with offline data entry on key punch machines. Some voting machines have used punched cards.
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