What does the newest technology using high-frequency radio waves to track objects refer to?

The correct answer refers to radio frequency identification (RFID) technology, which utilizes high-frequency radio waves to identify and track objects wirelessly. RFID systems typically consist of tags attached to the objects and readers that emit radio signals. When a tag comes within range of a reader, it responds by transmitting its stored data, enabling real-time tracking and inventory management.

RFID is widely used in various industries for applications such as supply chain management, asset tracking, and inventory control, allowing for efficient and automated data collection without the need for a direct line of sight, distinguishing it from other technologies. This capability makes it particularly advantageous in environments where monitoring numerous items efficiently is crucial.

As for other technology options, while wireless communication encompasses a broad range of applications, it does not specifically highlight the unique tracking capabilities provided by RFID. Bluetooth technology is another form of wireless communication but primarily focuses on short-range connectivity for personal devices rather than object tracking. Infrared tracking, although useful in certain scenarios, is limited to line-of-sight applications and does not utilize radio waves in the same manner.