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Multilingual Demographic Dictionary, second unified edition, English volume

Input-output device

Multilingual Demographic Dictionary, second unified edition, English vol.
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Input-output device  (INPUT-OUTPUT device)


The hardware (225-3) components of a computer (225-2) include one or several central processing units 1, a central memory 2, one or more mass storage devices 3 which use magnetic tapes 4 or disks 5 and a set of input-output devices 6. The software (225-4) components include the operating system 7, which has the task of efficiently managing the available facilities 8 for the users (225-5) running the users’ programs 9 and the processing programs 10 which are preestablished programs (225-8) designed for the solution of standard problems. More...