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A bar code identifies a product or item. When a bar code reader is used to scan bar codes, pricing information in the computer that operates the checkout register appears on the screen and is billed out accordingly. Checkout is quick. The computer can also be tasked to keep a running inventory of items, and this makes reordering rapid and easy. Price changes, like for sales or for increases in cost, can automatically be incorporated in store operations. These are just a few ways the bar code assists in retail.

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7y ago

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