Computer Basics/Hardware/Output devices

Computer Basics

Basic skills and knowledge to use a computer in the workplace or at home.
An OP Online course from the National Certificate in Computing (Level 2) programme.

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Output devices

Output devices are used to display data and programs.

Output devices	Function
Visual display unit Also known as VDU, screen, display, (it looks like a TV monitor). Different types of screens are available including – flat screens, cathode ray tube, plasma.	VDU or monitor Shows what is currently happening in the PC. Shows where the mouse is pointing. Shows position of cursor. Shows data as it is input (soft copy or temporary copy shown on screen). Shows information which is the result of processing the original data.
Printer Different types of printers are available including - Dot Matrix, Inkjet, Laser	Printer CPU sends copy of document required to be printed from RAM to printer memory. Printer then prints the document. Shows data as hardcopy (permanent copy).

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