Which supermarket chain was the first to use a barcode scanner in a retail transaction, forever changing how products are sold?

The retail landscape has been transformed by technological innovations that have revolutionized how consumers shop. One of the most significant advancements fundamentally changed the checkout process and inventory management across the globe. This innovation marked a pivotal moment in retail history, creating efficiencies that we now take for granted. Test your knowledge about this game-changing retail technology that transformed commerce forever!

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Marsh Supermarket (Ohio, 1974) - First to scan a pack of Wrigley's gum using IBM's UPC system
Walmart (Arkansas, 1972) - First to scan a bottle of Coca-Cola using NCR's retail scanning system
Kroger (Cincinnati, 1976) - First to scan a box of Kellogg's cereal using Spectra-Physics' laser scanner
A&P (New Jersey, 1971) - First to scan a carton of milk using RCA's bullseye code system