WiFi, short for “Wireless Fidelity,” is a technology that allows devices to connect to the internet or communicate with each other wirelessly using radio waves. It’s widely used in homes, businesses, and public spaces to provide internet access without the need for physical wired connections. WiFi operates within the unlicensed radio frequency bands, typically 2.4 GHz and 5 GHz, and it’s governed by the IEEE 802.11 family of standards. These standards define different WiFi versions, such as 802.11n, 802.11ac, and the latest, 802.11ax (Wi-Fi 6), each offering various speeds, range, and features. WiFi routers and access points transmit signals that devices like smartphones, laptops, tablets, and smart home gadgets can receive, enabling them to access the internet or network resources.