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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 North American Phonograph Company was an early attempt to commercialize the maturing technologies of sound recording in the late 1880s and early 1890s. Though the company was largely unsuccessful in its goals due to legal, technical and financial problems, it set the stage for the modern recording industry in the mid 1890s.
Herman Hollerith (February 29, 1860 – November 17, 1929) was a German-American statistician, inventor, and businessman who developed an electromechanical tabulating machine for punched cards to assist in summarizing information and, later, in accounting.
During 1907, the company was renamed the "British Tabulating Machine Company Limited". In 1920, the company moved from London to Letchworth, Hertfordshire; it was also at this point that it started manufacturing its own machines, rather than simply reselling Hollerith equipment. Annual revenues were £6K in 1915, £122K in 1925, and £170K in 1937.
Unit record equipment was widely used before the introduction of computers. The usefulness of tabulating machines was demonstrated by compiling the 1890 U.S. census, allowing the census to be processed in less than a year and with great labor savings compared to the estimated 13 years by the previous manual method. [113]
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 ...
IBM unit record equipment (2 C, 28 P) P. Punched card (2 C, 16 P) U. UNIVAC unit record equipment (1 C, 9 P) Pages in category "Unit record equipment"