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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 ...
A 12-row/80-column IBM punched card from the mid-twentieth century. 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. Punched cards were widely used in the 20th century, where ...
Punched cards. Main article: Punched card. A punched card is a flexible write-once medium that encodes data, most commonly 80 characters. Groups or "decks" of cards form programs and collections of data. The term is often used interchangeably with punch card, the difference being that an unused card is a "punch card," but once information had ...
IBM 082 Card Sorter. A punched card sorter is a machine for sorting decks of punched cards. Sorting was a major activity in most facilities that processed data on punched cards using unit record equipment. The work flow of many processes required decks of cards to be put into some specific order as determined by the data punched in the cards.
The punch card project was so extensive and immediate that the War Relocation Authority subcontracted the function to IBM. [1] IBM equipment was used for cryptography by US Army and Navy organisations, Arlington Hall and OP-20-G and similar Allied organisations using Hollerith punched cards (Central Bureau and the Far East Combined Bureau).
The Central Computer System of the AN/FSQ-7 had two computers for redundancy each with Arithmetic, Core Memory, Instruction Control, Maintenance Control, Selection & IO Control, and Program elements. [27] The Q7 had input/output devices such as: IBM 723 card punch and IBM 713 punched card reader; IBM 718 line printer (64 print positions)
HASP was developed by IBM Federal Systems Division contractors at the Lyndon B. Johnson Space Center in Houston. The developers were Tom Simpson and Bob Crabtree. HASP was a program that ran on a mainframe, and performed functions such as: scheduling, control of job flow, spooling and printing/punching. HASP had no support for IBM System/360 ...
International Business Machines (IBM) is a multinational corporation specializing in computer technology and information technology consulting. Headquartered in Armonk, New York, the company originated from the amalgamation of various enterprises dedicated to automating routine business transactions, notably pioneering punched card-based data tabulating machines and time clocks.