Ethernet controller is a component of computer hardware used for controlling the connection to wired networks. It is a vital component for managing Internet connections and other related network functions. Also, computers in a network communicate with each other with the help of Ethernet controller. It decodes the data received from the Internet cable into a form which could be easily recognized by the computer. Ethernet controller reviews each packet of data and determines whether the data is required for local computer or any other computer on the network. If the information is meant for local computer it will be accepted and information meant for other computers will be discarded. Most of the new generation computers have built in Ethernet controllers; however, older versions of computer used network interface cards having an Ethernet controller chip. Software drivers are used in order to manage the Ethernet controllers. Increased penetration of Internet and related serv...