Wireless Fidelity


        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.

Virtual Private Networks (VPNs) 

        It provide the most robust security solutions for corporate LANs and are already widely used for intranets and remote access. A VPN typically utilizes a dedicated server that provides both authentication and confidentiality. Wireless Access Points are also beginning to include VPN technologies within their devices, allowing simplified VPN deployment.A VPN works through the VPN server at the company head quarters, creating an encryption scheme for data transferred to computers outside the corporate offices.


        Wi-Fi uses radio technology called IEEE 802.11b to provide secure ,reliable,fast wireless connectivity. A Wi-Fi network can be used to connect computers to each other, to the internet and to the wired networks. Though WLANs are easy to deploy, the network administrator or IT professional will benefit from some basic knowledge about radio wave propagation.




        Wi-Fi  provides freedom: freedom to physically move around your home or business and still stay connected to the internet or local network; freedom to grow and move an office or business without having to install new cables and wires, freedom to be connected while travelling and on the road .Wireless ‘hotspots’(airports, hotels, coffee shops, convention centers and any  other place where someone can connect to a wireless network ) are being installed world while .