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Output devices

Common formats are printed paper, sound, video and on-screen documents. They let the computer communicate with the user. Examples of devices that take advantage of these formats are:

Monitor

The most common output device is the monitor or VDU.

Modern monitors, where the case isn’t more than a few centimetres deep, are usually Liquid Crystal Displays (LCD) or Thin Film Transistors (TFT) monitors.

Old computers and monitors for recycling
Image caption,
A CRT Monitor
An integrated flat screen computer
Image caption,
LCD monitors are vastly slimmer than CRT monitors