Output devices, ICT Computer Aptitude

Output devices

An output device is any device used to send data from a computer to another device or user. Most computer data output that is meant for humans is in the form of audio or video. Examples include monitors, projectors, speakers, headphones and printers.

 

Computer Networking- transmission media	https://unacademy.com/lesson/computer-networking-transmission-media-in-hindi/CGNVIQNP
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Monitors – A Monitor is a TV-like display attached to the computer on which the output can be displayed and viewed. It can either be a monochrome display or a color display.

There are two kinds of monitors

• CRT (Cathode ray tube) – The cathode ray tube (CRT) is a vacuum tube containing one or more electron guns, and a phosphorescent screen used to view images.
• Thin-Film-Transistor Liquid-Crystal Display (TFT LCD) – A thin-film-transistor liquid-crystal display (TFT LCD) is a variant of a liquid-crystal display (LCD) that uses thin-film transistor technology to improve image qualities such as addresability and contrast.

 

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