Which product was the first item ever scanned using a barcode scanner in a retail store?

The way we shop has been transformed by numerous technological inventions throughout history. One of the most significant retail innovations forever changed how products are identified at checkout counters worldwide. This invention streamlined the purchasing process, reduced human error, and created the familiar 'beep' sound we associate with shopping today. Test your knowledge about this groundbreaking retail technology that revolutionized inventory management and the consumer experience.

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A pack of Wrigley's chewing gum
A carton of milk
A loaf of Wonder bread
A can of Coca-Cola