- punched-card readers
- • четящо устройство за перфокарти
English-Bulgarian polytechnical dictionary . 2013.
punched-card readers
Look at other dictionaries:
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
Punched tape — Five hole and eight hole punched paper tape Punched tape or paper tape is an obsolete form of data storage, consisting of a long strip of paper in which holes are punched to store data. It was widely used during much of the twentieth century for… … Wikipedia
Lace card — A lace card is a punch card with all holes punched (also called a whoopee card, ventilator card or IBM doily ). Card readers tended to jam when a lace card was inserted, as the resulting card had too little structural strength to avoid buckling… … 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
NSA encryption systems — The National Security Agency took over responsibility for all U.S. Government encryption systems when it was formed in 1952. The technical details of most NSA approved systems are still classified, but much more about its early systems has become … Wikipedia
VS/9 — was a computer operating system available for the Univac 90/60, 90/70 and 90/80 mainframe during the late 1960s through 1980s. It provided the capability to allow both interactive and batch operations on the same computer.BackgroundIn the late… … Wikipedia
CDC 1700 — The CDC 1700 was a 16 bit word minicomputer, manufactured by the Control Data Corporation with deliveries beginning in May, 1966. The 1700 used ones complement arithmetic and an ASCII based character set, and supported memory write protection on… … Wikipedia
Western Union — For other uses, see Western Union (disambiguation). The Western Union Company Type Public Traded as NYSE: … Wikipedia
PDP-8 — A PDP 8 on display at the Smithsonian s National Museum of American History in Washington, D.C.. This example is from the first generation of PDP 8s, built with discrete transistors and later known as the Straight 8. The 12 bit PDP 8 was the… … Wikipedia
Digital Equipment Corporation — Industry Computer manufacturing Fate Assets were sold to various companies. What remained was sold to Compaq. Successor … Wikipedia
