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Which of the following is not an output device ?

  • A.Plotter
  • B.Headphone
  • C.Microphone
  • D.Projector

Answer: C

The one that is not an output device is the microphone.

A microphone converts sound into an electrical signal that the computer records, so it sends data into the computer: it is an input device.

The others take data out of the computer in a form people can use. A plotter draws large graphics on paper, headphones produce sound, and a projector displays the screen image on a wall or screen.

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