1. Light pen
  2. Optical-wand
  3. Plotter
  4. All of the above
  5. None of the above
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1 Answers

Answer: Option 2

A hand-held device which reads marks or characters on paper by detecting photo-sensitivity is known as Optical-wand. A wand is a handheld optical reader that is used to read barcodes as well as typewritten, printed and OCR fonts. Wands are used to capture product information for retail and warehouse applications.

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