Wi-Fi, which stands for “Wireless Fidelity”, is a radio technology that networks computers so they connect to each other and to the internet without wires.It refers to wireless LAN products based on the IEEE 802.11b specification.Users can share documents and projects,as well as an internet connection among various computer stations.
A Wi-Fi network operates just like a wired network, without restrictions imposed by wires .Not only does it enable users to move around and be mobile at home and at work, it also provides easy connections to the internet and business networks while travelling.
The technologies used in this field are one of the best in the wireless space. When compared with other fast improving technologies like Bluetooth and 3G, Wi-Fi is seen to have many advantages. We can setup networks at home and office using Wi-Fi . It is fairly easy to setup a Wi-Fi enabled network at home or a small office. Wi- Fi is several times faster than Bluetooth and operates like a high speed modem.
There are many security issues that come under Wi-Fi . The main problem that it has till now is that it is easy for hackers to attack the network. The security method that is used now is the WEP (Wired Equivalent Privacy).The new VPN (Virtual Private Network) method seems to correct everything that is wrong with WEP.
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