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What is the input device used to scan a marked answer book of a multiple choice question paper?
1. OCR
2. OMR
3. MICR
4. Card reader

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Best answer
Correct Answer - Option 2 : OMR

The correct answer is OMR.

  • Optical mark recognition
    • It is the input device used to scan a marked answer book of a multiple choice question paper.
    • An optical answer sheet or bubble sheet is a special type of form used in multiple-choice question examinations. 
    • Optical mark recognition is used to detect answers.

  • OCR
    • OCR (Optical Character Recognition) recognizes all the characters from the paper document.
    • It collects and stores them into an editable document.
  • MICR
    • ​The term magnetic ink character recognition (MICR) refers to the line of numbers that appears at the bottom of a check.
    • The MICR line is a group of three numbers, which are the check number, account number, and bank routing number.
  • Card reader
    • A card reader is a data input device that reads data from a card-shaped storage medium.

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