*What is Internet
//Internet is a global area network where large numbers of computer systems are connected to each other . The advent of the Internet has revolutionized information technology & its making presence felt in almost all walks of life. This kind of linkage represents the fast growing from communication in history. You can sand & receive electronic mail as well as retrieve information on a variety of subject. It is not privately owned entity & there is no centralize control as such .The Internet can be utilized for three main activities like sending & receiving email , reading massages in newsgroups & for browsing the world wild web .Nowadays, the Internet is also being used effectively for online shopping, reservations as well as for paying the bills.