Q: WHAT IS NFC? Ans: 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 (1.6inch) of each other. 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. History NFC is rooted in radio-frequency identification technology (known as RFID) which allows compatible hardware to both supply power to and communicate with an otherwise unpowered and passive electronic tag using radio waves. This is used for identification, authentication and tracking. (1) 1983 The first patent to be associated with the abbreviation "RFID" was granted to Charles Walton. (2) 1997 Early form patented and first used in Star Wars character toys for Hasbro. The patent was originally held b...