Which invention, patented in 1952 but not widely adopted in retail until the 1970s, revolutionized inventory management and is now estimated to save the retail industry over $18 billion annually?

In the world of retail and product innovation, some technological discoveries have completely transformed how businesses operate and connect with consumers. This poll tests your knowledge about a pivotal invention that revolutionized supply chain management and inventory tracking in retail. While this technology was initially developed for a different purpose, its application in retail has saved companies billions and created entirely new business models and efficiencies.

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Universal Product Code (UPC) barcode
Electronic cash register (ECR)
Radio-frequency identification (RFID)
Point of sale (POS) terminal