Which invention, first used commercially in 1974, transformed retail by allowing automatic electronic product identification and is estimated to save retailers over $18 billion annually?

The retail landscape has been transformed numerous times throughout history by groundbreaking inventions. From the humble barcode to sophisticated e-commerce platforms, these innovations have revolutionized how we buy and sell products. This poll tests your knowledge about a critical invention that fundamentally changed retail operations worldwide. Do you know which technological breakthrough truly revolutionized inventory management and checkout efficiency?

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Universal Product Code (UPC) barcode system
Electronic price tags
RFID (Radio-Frequency Identification) tags
Electronic point-of-sale (EPOS) system