January 2012
Beginner
408 pages
14h 34m
English
Content preview from Express Learning: Introduction to Information Technology
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4
Input Output Media
1. What are input and output devices?
Ans.: An input device is an electromechanical device that allows the user to feed information into the computer for analysis, storage, and to give commands to the computer. Data and instructions are entered into the computer's memory through an input device. It captures information and translates it into a form that can be processed and used by the other parts of the computer. Some examples of input devices are keyboard, mouse, trackball, joystick, scanner, etc.
After processing the input data, the computer provides the results with the help of output devices. An output device converts machine-readable information into human-readable form. The basic functioning of the output device ...
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