Which revolutionary IoT technology, first patented in 1973 but widely adopted by retail in the 1990s, fundamentally transformed inventory tracking and checkout processes worldwide?

The Internet of Things (IoT) has transformed modern retail, with innovative technologies reshaping how consumers shop and how retailers operate. One breakthrough technology particularly revolutionized inventory management and customer experience, becoming one of the most significant retail innovations of the past century. Test your knowledge about this groundbreaking technology that connects physical products to digital networks.

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RFID (Radio-Frequency Identification) tags
UPC barcode system
NFC (Near Field Communication) chips
Bluetooth Low Energy beacons