The RFID is one of the most transformational business technologies of the century. It is saving lives as well saving businesses billions of dollar. The technology basically has two components – the reader and the tag. The reader has two parts – a transceiver and an antenna. The transceiver generates a weak radio signal that may have a range from a few feet to a few yards. The signal is necessary to wake or activate the tag and is transmitted through the antenna. The signal itself is a form of energy that can be used to power the tag. There is now no longer count and record data on everything from airplane parts to jeans.