id card supply
id card supply(Redirected from RFID)Some information in this article or section has not been verified and may not be reliable. Please check for any inaccuracies, modify and cite sources as needed. To meet Wikipedia's quality standards, this article or section may require cleanup. Please discuss this issue on the talk page, or replace this tag with a more specific message. Editing help is available. This article has been tagged since July 2006. An EPC RFID tag used for Wal-MartRadio Frequency Identification (RFID) is an automatic identification method, relying on storing and remotely retrieving data using devices called RFID tags or transponders. ID card systems, badge holders, lanyards, reels, and more. An RFID tag is an object that can be attached to or incorporated into a product, animal, or person for the purpose of identification using radio waves. Chip-based RFID tags contain silicon chips and antennas. Passive tags require no internal power source, whereas active tags require a power source. History of RFID tagsAn RFID tag used for electronic toll collectionIn 1945 Léon Theremin invented an espionage tool for the Soviet government which retransmitted incident radio waves with audio information. Soundwaves vibrated a diaphragm which slightly altered the shape of the resonator, which modulated the reflected radio frequency. Even though this device was a passive covert listening device, not an identification tag, it has been attributed as the first known device and a predecessor to RFID technology. Home party supplies computer power supplies power ranger party supplies wholesale restaurant supply esthetician supplies high voltage power supply bowflex power pro xtlu power blowers austin powers case power supply power tap pro computer power sony supply cable flexible power breakers circuit power high speed internet service customer services internet fax service web design services voip service providers website design services phone service local car moving services ip phone services dating services chicago campaign email marketing services magazine printing services serviced office space answering service detroit 800 number service atlanta dating services computer fax service new york city limousine services merchant services providers business web site hosting services tandem marketing offers internet services billing service software flowers delivery service call centre service automobile transport service online investment services isp internet service internet service provider rating broadband service uk |