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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.
Many applications using unit record tabulators were migrated to computers such as the IBM 1401. Two programming languages, FARGO and RPG, were created to aid this migration. Since tabulator control panels were based on the machine cycle, both FARGO and RPG emulated the notion of the machine cycle and training material showed the control panel ...
The British Tabulating Machine Company (BTM) was a firm which manufactured and sold Hollerith unit record equipment and other data-processing equipment. During World War II, BTM constructed some 200 "bombes", machines used at Bletchley Park to break the German Enigma machine ciphers.
Download QR code; Print/export Download as PDF; ... Pages in category "Unit record equipment" The following 6 pages are in this category, out of 6 total.
First all-electronic calculator for use with unit record equipment. Could multiply and divide data from punched cards. Had 1,250 tubes. IBM CPC: 1949 700: Combined an IBM 604 with other unit record machines to carry out a sequence of calculations defined by instructions on a deck of punched cards. Ferranti Mark 1: 1951 9
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 same deck might be sorted differently for different processing steps.
Ring-and-spring microphones, such as this Western Electric microphone, were common during the electrical age of sound recording c. 1925–45.. The second wave of sound recording history was ushered in by the introduction of Western Electric's integrated system of electrical microphones, electronic signal amplifiers and electromechanical recorders, which was adopted by major US record labels in ...
Download QR code; Print/export ... Digital video recorders (3 C, 44 P) S. Sound recording technology (8 C, 49 P) T. Tape recording (2 C, 54 P) U. Unit record ...