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Input device

Output device

Input-Output device

Storage device

OUTPUT DEVICE	DEFINITION (D) & FUNCTION (F)
Display device	D-an ouput device that visually conveys text,graphics, & video information. F-allows users to conveys text,gtraphics & video information for a temporary period
Printer	D-an output device that produces text and graphics on a physical medium such a paper F-produce hard copy  that is a permanent copy of the output on the paper
Voice output device	D-a component of a computer that produces music,speech or other sounds F-provide voice output for computer games,music,video clips & TV shows.
Video output device	D-a display device that projects all computer output to a wall or projection screen F-provide the displaying the video that stored on that device