We are now living in an age where technology is becoming more and more advanced. Everything should be done speedily and accurately. One of the creations of the human genius is the barcode scanner which is operated using a laser beam. One of the places where barcode scanner is used is in the department stores or supermarkets. It scans the items purchased by a customer for the pricing. In this way the cashier will no longer look into the tag price and encode the amount which is very time-consuming.
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