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

Test your knowledge about one of the most transformative retail technology innovations that revolutionized shopping habits and inventory management worldwide. This invention changed how products move from shelves to shopping bags and created an entire industry of data analytics around consumer purchasing patterns. Do you know when this game-changing retail technology first appeared in stores?

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1974, at Marsh Supermarket in Ohio with a pack of Wrigley's gum
1969, at Walmart's first store in Arkansas with a Campbell's soup can
1981, at Target's flagship store in Minnesota with a bottle of Coca-Cola
1965, at Kroger in Cincinnati with a box of breakfast cereal