NFC (Near Field Communication)

Near Field Communication (NFC) is a set of communication protocols that enable two electronic devices to establish communication by bringing them within close proximity, typically 4 cm (1.6 in) or less. Embedded with an antenna and a chip, NFC is used extensively in contactless payment systems and is integrated into devices such as smartphones, tablets, and contactless credit cards.

NFC operates at a frequency of 13.56 MHz and can be used for more secure, two-way interactions between devices. When an NFC-enabled device, like a smartphone, is waved over or brought close to an NFC reader, such as those found on payment terminals, the electromagnetic field generated by the reader activates the chip in the device. This activation allows data exchange required to complete a transaction without needing physical contact.

Overall, NFC technology provides a fast, convenient, and secure way for conducting contactless transactions and interacting between smart devices, playing a significant role in the growing field of digital communication and commerce.