Question: How do bar codes and optical scanners benefit retail stores? By allowing them to keep a running record of every item they buy. By eliminating

How do bar codes and optical scanners benefit retail stores?
By allowing them to keep a running record of every item they buy.
By eliminating the need to keep a running record of every item they buy and sell.
By allowing them to keep a running record of every item they sell.
By allowing them to keep a running record of every item they buy and sell.
How do bar codes and optical scanners benefit

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