Saturday, August 23, 2008

What is Wi-Fi?

Wi-Fi stands for wireless fidelity and it refers to any system that uses the 802.11 standard. This system was developed by the Institute of Electrical and Electronic Engineers (IEEE) and was released in the year 1997. The term Wi-Fi can otherwise also spelled as WiFi, Wi-fi, Wifi or, wifi.

How Wi-Fi works?

Wi-Fi is a method of connecting the Internet wirelessly. In a Wi-Fi network, a PC with W-Fi network card is connected wirelessly to a wireless router. And the router gets connected to the Internet through a modem, mostly a cable or DSL modem. Any user who is present within 200 feet range of the access point can connect to the Internet wirelessly.

Wi-Fi networks can be of two types: Close and Open. In the closed system, the accessibility is restricted however, in the open system, anyone can access the Internet within a particular range. The Wi-Fi area is often called as wireless hotspot. Now, efforts are being made to turn entire cities as wireless hotspots. Wi-Fi computers, laptops and mobile phones are also available in the market.

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