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input device

a peripheral device, as a keyboard or stylus, used to enter data into a computer for processing. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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British Dictionary definitions for input device

input device

(computing) a peripheral device that accepts data and feeds it into a computer
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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input device in Science
input device
A device, such as a keyboard or a mouse, that is used to enter information into a computer.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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input device in Technology

A peripheral used to transfer data from the outside world into a computer system. Some input devices are operated directly by the user, e.g. keyboard, mouse, touch screen, joystick, digitising tablet, microphone; others are sensors or transducers which convert external signals into data, e.g. using an ananlog to digital converter (this would also be true of a microphone). Other kinds of inputs are really one half of a bidirectional link with another computer or storage device, e.g. serial line, SCSI interface.

The Free On-line Dictionary of Computing, © Denis Howe 2010
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