Monitors are used as producing soft copy output. They display the generated output on a television like screen. A monitor is usually associated with a keyboard, and together they form a video display terminal (VDT ). A VDT ( also called terminal ) is input/output device. The keyboard is used for input to the computer and monitor is used to display the output from the computer.
The two basic types of monitors are cathode ray tube (CRT) and flat panel. The CRT monitors look like a television, and are used with non-portable computer systems. On the other hand, the flat monitors are thinner and lighter, and are used with portable computer system like notebook computer.
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