Input devices, processing and output devices
Common output [output: the term denoting either an exit or changes which exit a system and which activate/modify a process ] formats are printed paper, sound, video and on-screen documents. They let the computer communicate with the user. Examples of devices that take advantages of these formats are:
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.
Older monitors, where the case is likely to be around 30 cm deep, are Cathode Ray Tube (CRT) monitors.
A plotter can be used to produce high quality, accurate, A3 size or bigger drawings. They are usually used for Computer Aided Design (CAD) [Computer Aided Design (CAD) software: used extensively in the automotive industry, aerospace industry, and in architectural design to draw 2D and 3D designs ] and Computer Aided Manufacture (CAM) applications [application: applications serve a specific purpose, eg Microsoft Word is used for word processing ], such as printing out plans for houses or car parts.
Many other types of output device exist including:
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