duplicating punch

  • 1Key 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… …

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  • 2Computer programming in the punch card era — From the invention of computer programming languages into the 1980s, many if not most computer programmers created, edited and stored their programs on punch cards. The practice was nearly universal with IBM computers in the era. In many… …

    Wikipedia

  • 3List 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… …

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  • 4Perforadora de tarjetas — Saltar a navegación, búsqueda Consiste en un dispositivo que permite perforar tarjetas de acuerdo a un patrón definido por el operador, que sirve para ingresar información. Una vez ingresada la información estas tarjetas se llaman tarjetas… …

    Wikipedia Español

  • 5printing — /prin ting/, n. 1. the art, process, or business of producing books, newspapers, etc., by impression from movable types, plates, etc. 2. the act of a person or thing that prints. 3. words, symbols, etc., in printed form. 4. printed material. 5.… …

    Universalium

  • 6Numerical control — CNC redirects here. For other uses, see CNC (disambiguation). A CNC Turning Center …

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  • 7Key (lock) — A cut key A key is an instrument that is used to operate a lock. A typical key consists of two parts: the blade, which slides into the keyway of the lock and distinguishes between different keys, and the bow, which is left protruding so that… …

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  • 8List of Power Rangers in Space monsters — This guide covers the monsters that have appeared in Power Rangers in Space . To make a monster grow, on Astronema s command, laser beams called Sattelasers would be fired onto the monster to make them grow big.List of Monstersphinx Ship* First… …

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  • 9arts, East Asian — Introduction       music and visual and performing arts of China, Korea, and Japan. The literatures of these countries are covered in the articles Chinese literature, Korean literature, and Japanese literature.       Some studies of East Asia… …

    Universalium

  • 10Computer programming in the punched card era — Punched card from a Fortran program. From the invention of computer programming languages up to the mid 1980s, many if not most computer programmers created, edited and stored their programs on punched cards. The practice was nearly universal… …

    Wikipedia