Many businesses use Radio Frequency Identification smart cards to open security doors and track the flow of people in a building. Each card contains data encoded on a machine-readable RFID chip and plays an integral part in a computerized security system. When the card comes within a few feet of the reader’s antenna, the RFID chip transmits its data, identifying the user to a security computer. RFID smart cards are programmable, easy to use and inexpensive. Writer Bio
