What was the first commercial product ever scanned with a barcode scanner in a retail store in 1974?

Barcodes transformed retail inventory management forever, but their path from invention to widespread adoption wasn't straightforward. This seemingly simple pattern of lines revolutionized how stores track products and manage inventory, dramatically reducing checkout times and human error. Test your knowledge about this groundbreaking retail innovation that we now take for granted in virtually every store worldwide.

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