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

The world of retail has been transformed by inventions and discoveries that changed how we shop forever. From barcode scanners to self-checkout kiosks, these innovations revolutionized the customer experience and retail operations. This trivia question focuses on a pivotal retail technology that fundamentally altered inventory management and the shopping experience worldwide. Test your knowledge about this groundbreaking retail invention!

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Universal Product Code (UPC) barcode
Radio-frequency identification (RFID) tag
Electronic article surveillance (EAS) tag
Near-field communication (NFC) chip