What are this technologies and how they function GPS and RFDI?

GPS (Global Positioning System) is a satellite-based navigation system that allows users to determine their precise location and time anywhere on Earth. It functions by using a network of satellites orbiting the Earth, which transmit signals to GPS receivers on the ground. These receivers then calculate the distance between the satellites and the receiver, based on the time it takes for the signals to reach the receiver. By triangulating the distances from multiple satellites, the GPS receiver can determine the user's exact location.

RFID (Radio Frequency Identification) is a technology that uses radio waves to identify and track objects or individuals. It consists of two main components: RFID tags and RFID readers. RFID tags are small electronic devices that contain a unique identifier and can be attached to or embedded in objects or even implanted in living beings. RFID readers emit radio waves and receive signals back from the RFID tags within their range.

When an RFID tag comes within the range of an RFID reader, it receives the radio wave signal and responds by transmitting its unique identifier back to the reader. The reader then captures this information and can use it to identify and track the tagged object or individual. RFID technology is commonly used in various applications such as inventory management, access control systems, contactless payment systems, and tracking assets or livestock.

Difference between GPS and GIS