NFC or Near Field Communications, is a form of contactless communications between two devices. The devices could be smart phones, tablets and other types of reader technology. The technology is based on Radio Frequency ID (RFID) and follows the ISO standard of 14443 to facilitate interoperability with other devices. Contactless communication allows a user to place the smartphone near an NFC compatible device to send information without needing to touch the devices together or go through multiple steps setting up a connection. Like RFID, NFC works in the 13.56MHz radio frequency spectrum.
Fast and convenient, NFC technology is popular in parts of Europe and Asia, and is quickly spreading throughout the United States. Both businesses and individuals benefit from near field communication technology. By integrating credit cards, subway tickets, and paper coupons all into one device, a customer can board a train, pay for groceries, redeem coupons or store loyalty points, and even exchange contact information all with the wave of a smartphone. Faster transaction times mean less waiting in line and happier customers. Fewer physical cards to carry around means the customer is less likely to lose one or have it stolen. (footnote to http://www.nearfieldcommunication.org/about-nfc.html)
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