What was the first product ever scanned with a UPC bar code at a retail store checkout in 1974?

The implementation of bar codes revolutionized retail technology and product tracking. This seemingly simple innovation dramatically transformed inventory management, checkout processes, and consumer data collection. Before digital systems and sophisticated analytics, this technology laid the groundwork for modern retail customer analytics by enabling businesses to track product movement with unprecedented accuracy. Test your knowledge about this pivotal moment in retail technology history!

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