Radio Frequency Identification or RFID is the use of radio waves to identify objects. This means, unlike a barcode, one can track an item without actually having to come in contact with it. The way it works is that an identifying serial number is stored in a microchip which is then attached to an antenna. (Together these are called the transponder or tag.) The chip is now able to transmit any identifying information to the receiver. The reader will convert the information to a digital format to be read by computers.

Radio Frequency Identification isn