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The term unit record equipment also refers to peripheral equipment attached to computers that reads or writes unit records, e.g., card readers, card punches, printers, MICR readers. IBM was the largest supplier of unit record equipment and this article largely reflects IBM practice and terminology.
UNIVAC unit record equipment (1 C, 9 P) Pages in category "Unit record equipment" The following 6 pages are in this category, out of 6 total.
Pages in category "IBM unit record equipment" The following 28 pages are in this category, out of 28 total. This list may not reflect recent changes. ...
Unit record equipment was typically configured for a specific task using a removable control panel. The electrical connections of the various components in the unit record machine were presented on the panel, and connections between them were determined by the wiring, with the actual connections made when the panel was inserted into the machine ...
The 407 was the central component of many unit record equipment shops which were the mainstay of IBM's business at the time. It could print digits, letters and several special characters in any of 120 print positions, spaced 0.1 inches apart (2.5 mm).
Early computer card readers were base on electromechanical unit record equipment and used mechanical brushes that make an electrical contact for a hole, and no contact if no punch. Later readers used photoelectric sensors to detect the presence or absence of a hole. Timing within each read cycle relates the resulting signals to the ...
IBM 080 Card Sorter 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.
Powers-Samas was a British company which sold unit record equipment. In 1915, Powers Tabulating Machine Company established European operations through the Accounting and Tabulating Machine Company of Great Britain Limited.
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