<P> Near - field communication (NFC) is a set of communication 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 . </P> <P> NFC devices are used in contactless payment systems, similar to those used in credit cards and electronic ticket smartcards and allow mobile payment to replace / supplement these systems . This is sometimes referred to as NFC / CTLS (Contactless) or CTLS NFC . NFC is used for social networking, for sharing contacts, photos, videos or files . NFC - enabled devices can act as electronic identity documents and keycards . NFC offers a low - speed connection with simple setup that can be used to bootstrap more capable wireless connections . </P> <P> Similar ideas in advertising and industrial applications were not generally successful commercially, outpaced by technologies such as barcodes and UHF RFID tags . NFC protocols established a generally supported standard . When one of the connected devices has Internet connectivity, the other can exchange data with online services . </P>

What is the use of near field communication
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