Which product was the first item ever scanned with a UPC barcode at a retail store in 1974?

Product identification has evolved dramatically throughout retail history. Before digital scanning transformed inventory management, tracking products was a manual, time-consuming process. The introduction of one particular technology in the 1970s revolutionized retail operations, creating the foundation for modern supply chain management and dramatically changing how customers check out. Test your knowledge about this pivotal moment in retail history!

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A 10-pack of Wrigley's Juicy Fruit chewing gum
A 12oz can of Coca-Cola
A loaf of Wonder Bread
A carton of Marlboro cigarettes