Near-field communication (NFC) is a set ofcommunication protocols that enable two electronic devices, one of which is usually a portable device such as a smartphone, to establish communication by bringing them within 4 cm (1.6 in) of each other.[1]
NFC devices are used in contactless payment systems, similar to those used in credit cards and electronic ticket smartcards and allowmobile payment to replace/supplement these systems. NFC is used for social networking, for sharing contacts, photos, videos or files.[2]NFC-enabled devices can act as electronicidentity documents and keycards.[3] NFC offers a low-speed connection with simple setup that can be used to bootstrap more capable wireless connections.
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