RFID (Radio frequency identification) is an emerging IT that is used to describe a system that retrieves information on identity about a person or an object wirelessly by uing radio waves. An example of RFID would be the use of a SpeedPass in esso gas stations. The purpose of an RFID system is to transmit data of an identity by using a portable device called tag, which is accessed by an RFID reader. Then, it will retrieve all the neccesary information according to the needs of a situation. A RFID tag consists of a microchip attached to a radio antenna. The chip have a storage data capacity of 2 kilobytes. To retrieve the data stored inside of a RFID tag, a RFID reader is required. A reader is a machine that has one or many antennas that transmit radio waves and receive signals back from the tag. By acquiring the necessary data, the RFID reader passes the information into digital information that can be passed on to cmputers that can make use of it. To know more about RFID components, visit this website: "http://www.olympic-data-capture.com/rfid.htm"
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