Which inventory management innovation, first used commercially in 1974, was initially patented as the 'bull's eye' and revolutionized retail by enabling automatic electronic data collection?

The history of retail is filled with revolutionary inventions and discoveries that transformed how we shop. From inventory management systems to customer analytics tools, these innovations have shaped modern commerce. This trivia question focuses on a pivotal technological breakthrough that fundamentally changed retail inventory management and created ripple effects throughout global supply chains. Test your knowledge about this game-changing invention!

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Universal Product Code (UPC) barcode
Radio-frequency identification (RFID) tag
Electronic shelf label (ESL) system
Point-of-sale (POS) terminal