Radio frequency identification (RFID) is a generic term that is used to describe a system that transmits the identity (in the form of a unique serial number) of an object or person wirelessly, using radio waves. It's grouped under the broad category of automatic identification technologies.
RFID is in use all around us. If you have ever chipped your pet with an ID tag, used EZ Pass through a toll booth, or paid for gas using Speed Pass, you've used RFID. In addition, RFID is increasingly used with biometric technologies for security.
