Which retail technology innovation, first used commercially in 1974, fundamentally transformed inventory tracking and is now used on virtually every retail product worldwide?

In the constantly evolving world of retail, technology has repeatedly transformed how we shop. One innovation in particular revolutionized inventory management and checkout processes worldwide, setting a new standard for retail efficiency. Do you know which groundbreaking technology made the biggest impact? Test your retail knowledge with this trivia question about a pivotal moment in retail technology history.

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Universal Product Code (UPC) barcode system
Electronic point-of-sale (EPOS) terminals
Radio-frequency identification (RFID) tags
Electronic shelf labels (ESL)