Which IoT technology innovation, first successfully implemented in retail in the early 2000s, replaced traditional barcodes and revolutionized inventory management by allowing contactless scanning of multiple items simultaneously?

The Internet of Things (IoT) has transformed the retail landscape through numerous innovations. One particular technology stands out as especially revolutionary, enabling retailers to track inventory in real-time and eliminate a longstanding retail challenge. This poll tests your knowledge of breakthrough retail technologies that bridged the gap between physical products and digital systems, forever changing how we shop and how stores operate.

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RFID (Radio-Frequency Identification) tags
NFC (Near-Field Communication) chips
QR (Quick Response) code system
BLE (Bluetooth Low Energy) beacons