When was the first commercial barcode scanner used in a retail store?

Test your knowledge about one of the most significant innovations in retail history! The development of retail systems and technologies has dramatically transformed how we shop. This particular innovation revolutionized the speed and accuracy of retail transactions, creating the foundation for modern inventory management and dramatically changing the customer checkout experience. Do you know when this game-changing technology first appeared in stores?

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1974, at Marsh Supermarket in Ohio
1962, at Walmart's first store opening
1981, at the grand opening of the first Costco
1969, during the opening week of the first Gap store