Question

please give me answers of this question ​

Answer 1

Barcode Reader

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Answer 2

Answer:

Bar Code Reader is an input device used for reading bar coded data (data in the form of light and dark lines). Generally, this bar coded data is used in labelling goods, numbering the books, etc where we often find in shopping malls when we purchase something. It may be a handheld scanner or may be embedded in a stationary scanner.