This document discusses RFID technology and its applications. It defines RFID as using radio frequencies to electronically identify objects. The key components of an RFID system are RFID tags attached to objects, readers, and application software. Common RFID tag types are passive, semi-passive, and active. Current popular applications include logistics/supply chain management, libraries, and payment systems like credit cards. A survey found the top industries for potential RFID use are logistics, pharmaceuticals, and libraries. The document outlines opportunities for expanding RFID in medical and library uses.