When was the first commercial barcode scanner used in a retail store to scan a product for purchase?

Test your knowledge about a groundbreaking retail innovation that transformed how we shop! This invention fundamentally changed the consumer experience by automating a crucial aspect of retail transactions. While we take this technology for granted today, it represented a major leap in retail efficiency and accuracy when first introduced. Can you identify when this revolutionary retail technology first appeared in stores?

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1974 at Marsh Supermarket in Ohio
1969 at Walmart's first store in Arkansas
1981 at Target's flagship Minneapolis location
1963 at IBM's research facility store prototype