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Q: Which of the following is an input device?
  • A. Monitor
  • B. Scanner
  • C. Projector
  • D. Speaker
Correct Answer: Option B - Scanner is an input device. It directly input the images or written information on a page into the computer. Its main advantage is that the user does not have to type the information. The main input device are keyboard, track ball, touch screen, light pen etc.
B. Scanner is an input device. It directly input the images or written information on a page into the computer. Its main advantage is that the user does not have to type the information. The main input device are keyboard, track ball, touch screen, light pen etc.

Explanations:

Scanner is an input device. It directly input the images or written information on a page into the computer. Its main advantage is that the user does not have to type the information. The main input device are keyboard, track ball, touch screen, light pen etc.