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12-row Hollerith code

См. также в других словарях:

  • Hollerith code — noun see hollerith * * * /hol euh rith/, Computers. a system for coding data into punched cards, in which each horizontal row is assigned a different value, and letters, numbers, or special characters are encoded as combinations of these values… …   Useful english dictionary

  • Hollerith code — /hol euh rith/, Computers. a system for coding data into punched cards, in which each horizontal row is assigned a different value, and letters, numbers, or special characters are encoded as combinations of these values in a vertical column.… …   Universalium

  • 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

  • IBM 557 — The IBM 557 Alphabetic Interpreter [http://www.tietokonemuseo.saunalahti.fi/eng/kuva 16 eng.htm (photo)] allowed holes in punch cards to be interpreted and the Hollerith punch card characters printed on any row or column, selected by a control… …   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

  • Timeline of computing hardware 2400 BC–1949 — History of computing Hardware before 1960 Hardware 1960s to present Hardware in Soviet Bloc countries Artificial intelligence Computer science Operating systems Programming languages …   Wikipedia

  • Cryptanalysis of the Enigma — enabled the western Allies in World War II to read substantial amounts of secret Morse coded radio communications of the Axis powers that had been enciphered using Enigma machines. This yielded military intelligence which, along with that from… …   Wikipedia

  • IBM — This article is about the technology company sometimes referred to as Big Blue . For other uses of these terms, see IBM (disambiguation) and Big Blue (disambiguation). International Business Machines Corporation Type Public …   Wikipedia

  • Unit record equipment — Before the advent of electronic computers, data processing was performed using electromechanical devices called unit record equipment, electric accounting machines (EAM) or tabulating machines. Unit record machines were as ubiquitous in industry… …   Wikipedia

  • IBM — International Business Machines Tipo Public company Área de servicio Multinacional Símbolo de teletipo …   Wikipedia Español

  • 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

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