What do you mean by barcode?
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What do you mean by barcode?

What do you mean by barcode?
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What do you mean by barcode?

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Bar Codes : A bar code is a set of lines of different thicknesses that represent a number. Bar Code Readers are used to input data from bar codes. Most products in shops have bar codes on them. Bar code readers work by shining a beam of light on the lines that make up the bar code and detecting the amount of light that is reflected back.

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