Wi-Fi, short for Wireless Fidelity, is a wireless networking technology that enables devices to connect to a local area network (LAN) wirelessly using radio waves. Wi-Fi is widely used in homes, businesses, public spaces, and other locations to provide internet access and network connectivity without the need for physical cables.
Wi-Fi networks operate on various frequencies within the radio wave spectrum, such as 2.4 GHz and 5 GHz, and use standards like the IEEE 802.11 family to define communication protocols. Wi-Fi routers and access points transmit data wirelessly to devices equipped with Wi-Fi receivers, such as smartphones, laptops, tablets, and smart home devices.
Wi-Fi networks can offer different speeds and levels of security, depending on the Wi-Fi standard and configuration settings. Users can connect to Wi-Fi networks by entering a network password or using other authentication methods. Wi-Fi technology has enabled the proliferation of mobile devices and the Internet of Things (IoT) by providing convenient and flexible wireless connectivity for a wide range of applications.