Wi-Fi (Wireless Fidelity) is a technology that enables devices like smartphones, computers, tablets, and smart home gadgets to connect to the internet and communicate wirelessly within a specific range. Using radio frequency, Wi-Fi transmits data between devices and a wireless router, which connects to the internet through a modem. This allows multiple devices to access the internet without physical cables, providing flexibility in device placement and mobility.
Wi-Fi networks typically operate on two frequency bands, 2.4 GHz and 5 GHz, which allow for different speeds and range capabilities. Wi-Fi is widely used in homes, offices, and public spaces due to its convenience, allowing for both local network connections and internet access within a defined area, usually up to a few hundred feet.
There are various Wi-Fi standards: 802.11a, 802.11b, 802.11g, 802.11ac, 802.11n