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automatic data switching system

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  • Automatic data processing equipment — Automatic data processing equipment, legally defined, is any equipment or interconnected system or subsystems of equipment that is used in the * automatic acquisition, * storage, * manipulation, * management, * movement, * control, * display, *… …   Wikipedia

  • Automatic switching system — In data communications, an automatic switching system is a switching system in which all the operations required to execute the three phases of information transfer transactions are automatically executed in response to signals from a user end… …   Wikipedia

  • Number Five Crossbar Switching System — The Number Five Crossbar Switching System or 5XB switch, designed by Bell Labs and made by Western Electric, was in use in Bell System telephone exchanges from 1948 to the 1980s. Its principal use was as a Class 5 telephone switch, though… …   Wikipedia

  • Number One Crossbar Switching System — The Number One Crossbar Switching System, or 1XB switch, was the primary urban local telephone exchange design used by the Bell System in the mid 20th century. Its switch fabric topology was based on the earlier urban panel switch system, which,… …   Wikipedia

  • Data link layer — The OSI model 7 Application layer 6 Presentation layer 5 Session layer 4 Transport layer 3 Network layer 2 …   Wikipedia

  • Data Link Layer — The Data Link Layer is Layer 2 of the seven layer OSI model. It responds to service requests from the Network Layer and issues service requests to the Physical Layer.The Data Link Layer is the protocol layer which transfers data between adjacent… …   Wikipedia

  • Automatic Digital Network — The Automatic Digital Network (AUTODIN) is a legacy data communicationsservice in the United States Department of Defense. AUTODIN originally consisted of numerous AUTODIN Switching Centers (ASCs) located in the United States and in countries… …   Wikipedia

  • Automatic Picture Transmission — The Automatic Picture Transmission (APT) system is an analog image transmission system developed for use on weather satellites. It was introduced in the 1960s and over four decades has provided image data to relatively low cost user stations at… …   Wikipedia

  • Ignition system — For other uses, see Ignition system (disambiguation). An ignition system is a system for igniting a fuel air mixture. Ignition systems are well known in the field of internal combustion engines such as those used in petrol (gasoline) engines used …   Wikipedia

  • Electronic Flight Instrument System — An electronic flight instrument system, or EFIS, is a flight deck instrument display system in which the display technology used is electronic rather than electromechanical. EFIS normally consist of a primary flight display (PFD), multi function… …   Wikipedia

  • Business telephone system — Early model 464G Western Electric key telephone set A business telephone system is any of a range of a multiline telephone systems typically used in business environments, encompassing systems ranging from small key systems to large scale private …   Wikipedia