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What is a WiFi router?

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Quick Answer

A Wi-Fi router is a computer networking device that converts digital communication signals to radio signals to provide wireless Internet connectivity. These devices use communications protocols developed by the Institute of Electrical and Electronics Engineers under the 802.11 wireless standard.

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Full Answer

As of April 2015, there are multiple extensions to the original 802.11 standard, which include 802.11b, 802.11g, 802.11n and 802.11ac. Wi-Fi routers can use a combination of these protocol extensions to provide functionality with a range of Wi-Fi-enabled devices. Wi-Fi communication differs from other wireless network technologies, such as Bluetooth, 3G, 4G and WiMax, in object-interference limitations, transmission distance and bandwidth capabilities.

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