NFC: Near-Field Communication

Saw this posted on Forum Oxford. Very good introductory article on NFC:

Near-field Communication (NFC) is characterized as a very short-range radio communication technology with a lot of potential, especially when applied to mobile handsets. Imagine yourself using your cellphone to interact with posters, magazines, and even with products while at the store, and with such interaction initiating a request or search for related information in real-time. Other usages of NFC include the electronic wallet to make payments using your handset, the same way you do with your credit card. With NFC all this is possible. But NFC is still a young technology. That said, NFC-enabled handsets are being introduced into the market, and deployments and pilots around the world are occurring.

Near-field Communication or NFC is a standard defined by the NFC Forum, a global consortium of hardware, software/application, credit card companies, banking, network-providers, and others who are interested in the advancement and standardization of this promising technology.

NFC is a short-range radio technology that operates on the 13.56 MHz frequency, with data transfers of up to 424 kilobits per second. NFC communication is triggered when two NFC-compatible devices are brought within close proximity, around four centimeters. Because the transmission range is so short, NFC-based transactions are inherently secure; more on this shortly.

When compared to the other short-range radio technologies, NFC is extremely short ranged and what I call people-centric. Some of the other short-range communication technologies have similar characteristics, for example RFID, while others are completely different yet complimentary to NFC; for example Bluetooth and Infrared. A good scenario of such compliment is the combination of NFC and Bluetooth, where NFC is used for pairing (authenticating) a Bluetooth session used for the transfer of data.

Complete Article at Sun Developer Network.

More about NFC at NFC Forum homepage.

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