Question

what is bar code???......​

Answer 1

Answer:

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A barcode,consisting of bars and spaces is a machine-readable representation of numerals and characters...

A barcode consist of bars and spaces of varying width that can be read with an optical barcode scanner....

Explanation:

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Answer 2

A barcode, consisting of bars and spaces, is a machine-readable representation of numerals and characters. ... These are barcodes. A barcodeconsists of bars and spaces of varying width that can be read with an optical barcode scanner


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