What was the first commercial product ever scanned with a barcode scanner in a retail store transaction?

The barcode revolutionized retail operations and inventory management in ways we now take for granted. This humble pattern of black and white lines transformed how products are tracked, sold, and inventoried throughout history. Test your knowledge about this pivotal retail innovation that changed shopping forever and paved the way for modern commerce as we know it.

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A pack of Wrigley's Juicy Fruit chewing gum
A carton of Marlboro cigarettes
A bottle of Coca-Cola
A loaf of Wonder Bread