The Internet Today Internet has come a long way since 1960s. The Internet today is not a simple hierarchical structure. It is made up of very local and wide area networks joined by connecting devices and switching stations. Today Internet is run by private companies and not government. Most people know the Internet through its applications: the World Wide Web, email, streaming audio and video, chat rooms, and music (file) sharing. TheWeb, for example, presents an intuitively simple interface. Users view pages full of textual and graphical objects, click on objects that they want to learn more about, and a corresponding new page appears. Most people are also aware that just under the covers, each selectable object on a page is bound to an identifier for the next page to be viewed. This identifier, called a uniform resource locator (URL), uniquely names every possible page that can be viewed from your Web browser. For example, http://www.google.com/index.html is th
