What is barcode ?


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what bar code is

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  1. Nidhi

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    A bar code is the small image of lines and spaces that is affixed to retail store items, identification cards, and postal mail to identify a particular product number, person, or location.
    The code uses a sequence of vertical bars and spaces to represent numbers and other symbols. A bar code symbol typically consists of five parts: a quiet zone, a start character, data characters (including an optional check character), a stop character, and another quiet zone.
    To read the barcode ‘ bar code reader’ is used.The reader uses a laser beam that is sensitive to the reflections from the line and space thickness and variation. The reader translates the reflected light into digital data that is transferred to a computer for immediate action or storage.

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