Abstract:

          Today various new technologies helps  the people more convenient to do the work. In that WI-FI,GI-FI,LI-FI plays the major role among people in sharing of datas, folders etc. This paper deals about the wireless technologies. WI-FI,GI-FI,LI-FI are the wireless communications. They all are the cheap deployment of LAN. These wireless connections can be connected to a network resource such as the Internet via wireless network access point . They all can  provides service in to private homes, businesses, as well as in public spaces at Wi-Fi hotspots set up either of free-of-charge or commercially, often using a capitive portal webpage for the access. Organizations and several  busineses such as airports, hotels, and restaurants  provides a free-use hotspots to attract customers .They all offers a faster information and provide them in a les time and at less cost.Gi-Fi provides the high security and les consumption of time.

Key words: LAN, WI- FI, wireless network, hotspots