- punched-card codes
- • перфокартен код
English-Bulgarian polytechnical dictionary . 2013.
punched-card codes
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Punched card — Overpunch redirects here. For the code, see Signed overpunch. A punched card, punch card, IBM card, or Hollerith card is a piece of stiff paper that contains digital information represented by the presence or absence of holes in predefined… … Wikipedia
Card reader — A card reader is a data input device that reads data from a card shaped storage medium. Historically, paper or cardboard punched cards were used throughout the first several decades of the computer industry to store information and write programs … Wikipedia
Tarjeta perforada — La tarjeta perforada es una cartulina con unas determinaciones al estar perforadas, lo que supone un código binario. Estos fueron los primeros medios utilizados para ingresar información e instrucciones a un computador en los años 1960 y 1970.… … Wikipedia Español
Шестибитная кодировка — Шестибитные кодировки применялись в компьютерах, производившихся в США в 1950 х 1960 х годах. Соответственно размер машинного слова на этих компьютерах был кратен 6 бит (например, 12, 18, 24, 36, 48, 60 бит). Такой размер символа позволял… … Википедия
Hollerith encoding — was a standard for punch cards used in early computers. Until the early 1980 s, the use of these punch cards was a common form of computer input. These punch cards were 80 columns by 12 rows in size, and in the Hollerith encoding scheme, had one… … Wikipedia
Hugh McGregor Ross — à 88 ans, en Janvier 2006, avec une copie du projet de proposition de l ISO/CEI 10646 Hugh McGregor Ross, né le 31 août 1917 à Nairobi, Kenya, est un des pionniers de l histoire britannique de l informatique[1] … Wikipédia en Français
computer — computerlike, adj. /keuhm pyooh teuhr/, n. 1. Also called processor. an electronic device designed to accept data, perform prescribed mathematical and logical operations at high speed, and display the results of these operations. Cf. analog… … Universalium
List of IBM products — The following is a list of notable products from the International Business Machines (IBM) Corporation and its predecessor corporations, beginning in the 1890s, and spanning punched card machinery, time clocks, and typewriters, via mainframe… … Wikipedia
Key punch — A key punch is a device for entering data into punched cards by precisely punching holes at locations designated by the keys struck by the operator. Early keypunches were manual devices. Later keypunches were mechanized, often resembled a small… … Wikipedia
History of computing hardware — Computing hardware is a platform for information processing (block diagram) The history of computing hardware is the record of the ongoing effort to make computer hardware faster, cheaper, and capable of storing more data. Computing hardware… … Wikipedia
Binary-coded decimal — In computing and electronic systems, binary coded decimal (BCD) is a digital encoding method for numbers using decimal notation, with each decimal digit represented by its own binary sequence. In BCD, a numeral is usually represented by four bits … Wikipedia
