All this mobile computing expertise coming fast on the horizon has a couple of disadvantages with employers. WiMax (Wireless Interoperability for Microwave Entry) know-how represents the following generation of wi-fi networking and can transmit knowledge as much as a distance of forty-eight km. It might provide a most networking speed of seventy Mbps. It gives much better amenities than Wi-Fi akin to greater bandwidth and high data safety by using enhanced encryption schemes. It may well present service in each Line Of Sight (LOS) and Non-Line Of Sight (NLOS) areas, but range may vary accordingly. WiMax supports a number of communication protocols, and may act because the backbone network for an ISP(Web service supplier) as well as telecom service provider.