Which retail innovation, first used commercially in 1974 on a pack of Wrigley's gum, revolutionized checkout processes and inventory management across the global retail industry?

The retail landscape has been transformed by numerous technological innovations throughout history. One particular breakthrough changed how consumers interact with products forever, creating a seamless checkout experience and revolutionizing inventory management. This innovation marked a significant turning point in retail efficiency and customer convenience. Test your knowledge about this pivotal retail invention that continues to impact shopping experiences worldwide.

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Universal Product Code (UPC) barcode scanning
Self-checkout kiosks
Electronic article surveillance (EAS) anti-theft tags
RFID inventory tracking