Dictionary of Computers - radio frequency identification

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Electronic tagging system used for tracking the movement of goods between manufacturers and their customers. Each RFID tag contains a microchip smaller than a grain of sand, on which can be written an electronic product code (EPC). The tag can be read when a radio wave is passed over it by a reader device, which can be linked via the Internet to a database containing information about the product. Tagging can be at the level of pallets and cases or at the level of each individual item. RFID is widely used in passports, travel tickets, library books, cattle tags, and in many other items.

A number of large manufacturers, supermarkets, and department stores have run RFID tagging trials, the success of which indicated that RFID technology would become the industry standard for tracking and distribution. Hospitals, government departments, and even nightclubs have experimented with RFID chips implanted in human bodies to track people's movements.

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