Which retail technology innovation, first used commercially in 1974 on a pack of Wrigley's gum, transformed inventory management and is now scanned over 6 billion times daily worldwide?

In the ever-evolving world of retail, technological innovations have transformed how customers shop and how businesses operate. One particular invention revolutionized inventory management and checkout processes worldwide, becoming ubiquitous in nearly every retail environment. This innovation fundamentally changed retail operations, improved accuracy, and accelerated the checkout process. Test your knowledge about this groundbreaking retail technology that bridged the gap between physical products and digital data systems.

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Universal Product Code (UPC) barcode
Radio-Frequency Identification (RFID) tags
Electronic Shelf Labels (ESL)
Near Field Communication (NFC) payment system