WiFi means Wireless Fidelity. WiFi is the first, friendly name for Wireless communication over computer networks. Wi-Fi Alliance is a group that certifies wireless products.
Simply put, Wi-Fi is connectivity. At home, Wi-Fi connects you to your favorite content and communications over your mobile phone, computer, media players and other devices - all without cumbersome cables. When you're on the move, Wi-Fi let's you connect to the Internet or your office from an airport or coffee shop and helps you stay productive when you're away from home. Now, imagine doing all these things easily and quickly - without worrying about finding a wired network connection. That is Wi-Fi.
Wi-Fi networks use radio technologies called 802.11 to provide secure, reliable, fast wireless connectivity. A Wi-Fi network can be used to connect electronic devices to each other, to the Internet, and to wired networks which use Ethernet technology. Wi-Fi networks operate in the 2.4 and 5 GHz radio bands, with some products that contain both bands (dual band).
WiFi products are easy to connect together. The Wi-Fi Alliance has awarded thousands of product certifications to devices that have been tested for interoperability and will not interfere with other wireless products.
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