Which retail innovation was first implemented at an Ohio supermarket in 1974, revolutionizing inventory management and checkout efficiency worldwide?

In the world of retail, innovations have dramatically transformed how we shop. From humble beginnings to sophisticated systems, technological advancements have revolutionized the retail experience. This trivia question focuses on a groundbreaking invention that fundamentally changed inventory management and checkout processes worldwide. Do you know which scanning technology first appeared in grocery stores in the 1970s and has since become ubiquitous in retail?

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The UPC barcode scanning system
Self-checkout kiosks
RFID inventory tracking
Electronic shelf labels