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A computer punched card reader or just computer card reader is a computer input device used to read computer programs in either source or executable form and data from punched cards. A computer card punch is a computer output device that punches holes in cards. Sometimes computer punch card readers were combined with computer card punches and ...
Others in the series included the IBM 513 & IBM 514 Reproducing Punch. The 519, which was "state of the art for the time", [1] could: reproduce all or parts of the information on a set of cards "gangpunch" - copy information from a master card into the following detail cards; print up to eight digits on the end of a card; compare two decks of cards
A single program deck, with individual subroutines marked. The markings show the effects of editing, as cards are replaced or reordered. Many early programming languages, including FORTRAN, COBOL and the various IBM assembler languages, used only the first 72 columns of a card – a tradition that traces back to the IBM 711 card reader used on the IBM 704/709/7090/7094 series (especially the ...
A punched card (also punch card [1] or punched-card [2]) is a piece of card stock that stores digital data using punched holes. Punched cards were once common in data processing and the control of automated machines .
Mortgage and refinance rates for Dec. 19, 2024: Average 30-year, 15-year rates move higher after Fed's quarter-point cut
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The following units were not designed to punch cards: The 1442 Model 3 attaches to an IBM 1410 or IBM 7010 computer system. It reads cards at 400 cpm. One stacker is standard on the Model 3. The 1442 Model 4 attaches to an IBM 1440 computer system. It reads cards at 400 cpm. Two stackers are standard on the Model 4.
A cleaning company has been fined $171,000 after federal investigators found 11 children working a "dangerous" overnight shift at a meat processing plant in Iowa. The U.S. Labor Department sa id ...
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