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Question

Bar codes are most common in ---

banks

medical laboratories

supermarkets

admission test

college final examinations

ANSWER : 3

Descrption

The Universal Product Code (UPC) is introduced, setting the stage for barcodes to take off. 1974: At a Marsh supermarket in Troy, Ohio, a pack of Wrigley's chewing gum is the first retail product sold using a barcode scanner. 1984: 33 percent of grocery stores are equipped with barcode scanners.
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