Which retail product innovation was first demonstrated at a Marsh Supermarket in Ohio in 1974, dramatically transforming inventory management and checkout processes worldwide?

The evolution of retail technology has transformed how we shop. Throughout history, certain innovations have revolutionized the retail landscape, creating entirely new possibilities for consumers and businesses alike. This trivia question focuses on a groundbreaking retail technology that fundamentally changed the shopping experience worldwide. Test your knowledge about this significant retail innovation milestone!

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Universal Product Code (UPC) barcode scanning
RFID tag tracking system
Digital price tags
Self-checkout kiosks