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________ is an input device, which acts like a photocopy machine. When an information is available on paper, it is used and needs to be transferred to the hard disk of the computer for further use/processing.
1. Light pen
2. Digital camera
3. Touchpad
4. Scanner

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Correct Answer - Option 4 : Scanner

The correct answer is Scanner.

  • The scanner is an input device, which acts like a photocopy machine.
  • When a piece of information is available on paper, it is used and needs to be transferred to the hard disk of the computer for further use/processing.
  • Scanners can broadly be classified into several types. Some of them are-
    • Flatbed Scanners
      • These are mainly used to scan anything flat. Photos, Documents, etc. can be scanned.
    • Automated Document Feeder
      • The main advantage of this over the flatbed scanner is the speed at which the materials get scanned.
      • On average, an ADF can scan up to 100 PPM, while the flatbed is confined to a maximum of 5 ppm.
    • Overhead Scanners
      • The materials that are scanned are not limited to flat-shaped ones.
      • Stone Carvings can also be scanned.

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