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RFID Microchip
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A type of microchip found on transponders used in conjunction with RFID (Radio Frequency Identification) systems in which the transponders are attached to a variety of goods, equipment, and documents in order to provide rapid identification, inventory management, and/or numerous security features. The most expensive read/write, active RFID transponders may have microchips with a memory capacity of up to one megabyte (1,000,000 characters). Most tags are inexpensive, passive transponders that can store only 32 to 128 bits (characters) of information, so an identification number is basically the only data that the read-only tag will contain. When the number is read, detailed information stored in a database in a computer can be accessed. This is similar to a barcode system in which data, such as a price, is accessed when the barcode is read; however, the barcode must come in direct contact with an optical scanner/reader and the RFID tag is capable of transmitting data to the reader via radio waves and therefore, it does not have to be in direct physical contact with the reader.
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