Question

What is NFC and how it is useful for us ?

Answer 1

Near field communication (NFC) is a set of ideas and technologies that enable smartphones and other devices to establish radio-communication with each other by touching them together or bringing them into proximity, typically a distance of 10 cm (3.9 in) or less. All connected NFC enabled smartphones can be provisioned with dedicated apps, which gives any application hundreds of millions of potential dedicated readers in opposition of the traditional dedicated infrastructure of ticket, access control or payment readers. All NFC peers can connect a third party NFC device with a server for any action or reconfiguration.

Answer 2

Near Field Communication, it is useful because this is a short-range high frequency wireless communication technology which enables the exchange of data between devices over about a 10 centimeter distance.The technology is a simple extension of the ISO/IEC 14443 proximity-card standard that combines the interface of a smartcard and a reader into a single device. An NFC device can communicate with both existing ISO/IEC 14443 smartcards and readers, as well as with other NFC devices, and is thereby compatible with existing contactless infrastructure already in use for public transportation and payment