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Radio Frequency Identification in Education

Radio frequency identification (RFID) is the wireless recognition of, and communication with, uniquely identified electronic devices. RFID devices are commonly used in cell phones, car keys, building access systems, passports, and identification cards. This entry discusses how RFID works, its use in education, and controversy over RFID use and the privacy concerns it can raise.

Basic Technology

Each RFID device has its own identifier code, allowing it to tag a specific item or individual, so the devices themselves are commonly called tags. RFID codes are item specific, rather than universal product codes (UPCs) that only identify specific classes of items. While many identical products will have the same UPC, the code for each RFID tag is unique. The most common RFID identifier codes are International Mobile Equipment ...

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