Wi-Fi

The 802 .11b standard was developed at the end of 1990’s and finally approved at the beginning of 1999. The first data transmission devices based on the standard were launched in 2000. Wi-Fi devices were designed for corporate clients to replace traditional cable networks. A wire network required a thorough design of the network topology and manual laying of hundreds of meters of cable, sometimes in the most unexpected places. Whereas all it takes to organize a wireless network is to install several base stations at one or several spots in the office (a central receiver and transmitter with an antenna connected to an outside network or a server) and insert a network card with an antenna. After that, both people and computers can be moved freely, and even changing offices wouldn’t damage the network. In the United States, a company had offered in December 2003 to make the whole of San Francisco Wi-Fi. In Spain, Telephonic launched the services ADSL Wi-Fi, which has led it to sign various agreements with public centers, like hotels or convention centers, to install access points. The operator has created almost 400 hotstops. Some educational institutes offering Wi-Fi are Pathways World School, Guraon while most IITs and IIMs, Anna University, Annamalai University, and International School of Business (ISB) in Hyderabad, Mount Zion College of Engineering and Technology have also become hotspots.