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Which of the following is an input device which can detect the presence or absence of a pencil or pen mark on a paper?

3476Medium DSSSB TGT Computer Science 0 replies 2 views
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Which of the following is an input device which can detect the presence or absence of a pencil or pen mark on a paper?

  • AOptical Mark Reader (OMR)
  • BLight pen
  • CDigitizer
  • DOptical Character Recognizer (OCR)
Correct answer: A

Explanation

An Optical Mark Reader (OMR) detects the presence or absence of a pencil or pen mark on paper.
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