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

The retail landscape has transformed dramatically throughout history, with technological innovations reshaping how we shop. This trivia question focuses on a revolutionary retail innovation from the 20th century that fundamentally changed how stores tracked inventory and processed transactions. Test your knowledge of retail history and the technological breakthroughs that built today's shopping experience!

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Universal Product Code (UPC) barcode scanning
Electronic point-of-sale (EPOS) touch screen systems
Radio-frequency identification (RFID) inventory tracking
Self-checkout kiosks