Which retail innovation, invented by Norman Joseph Woodland and Bernard Silver, was first commercially used in 1974 at an Ohio supermarket and is now scanned over 6 billion times daily worldwide?

The retail landscape has been transformed by countless inventions throughout history. Some innovations fundamentally changed how customers shop, how products are displayed, and how businesses operate. This trivia question focuses on a pivotal retail technology invention that revolutionized inventory management and customer checkout experiences worldwide. Test your knowledge of retail technology history!

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Universal Product Code (UPC) barcode
Electronic anti-theft security tag
Self-checkout kiosk
Electronic point-of-sale (EPOS) terminal