It’s obvious that many people used internet without knowing about internet some do not even want to know about it that is if you ask them why they used internet they say to have some funs some to met friends and have new ones but internet is for educational purpose because it expose us the to the world of technologies that is it. Let’s hover to the main purpose why we are here. “WHAT IS INTERNET” internet, sometimes simply called “NET,” is a worldwide system of computer networks in which users at any one computer can get information from any other computer and sometimes talk directly to the user at other computers if they are permitted to do so. Internet was conceived by the Advance Research project Agency (ARPA) of the U.S Government in 1969 and was first known as “ARPANET”. The original aim was to create a network that would allow users of a research computer at one university to be able to talk to a research computers at other universities. A side benefit of ARPANET’s design was that, because massage could be routed or rerouted in more than one direction, the network could continue to function even if part of it were destroyed in the event of the military attack or other disaster. Today, internet is a public, cooperative and self-sustaining facility accessible to hundreds of millions of people worldwide. Physically, the internet uses a portion of the total resources of the currently existing public telecommunication networks. Technically, what distinguishes the internet is it us of a set of protocols called TCP/IP (Transition Control Protocol/Internet Protocol). Two resent adaptation of internet technology, “the internet and the extranet, also make use of the TCP/IP protocol. For many internet users, Electronic mail (e-mail) has practical replaced the postal service for short written transactions. Electronic mail is the most widely use application on the NETWORK can also carry on live conversation with other computer users using Internet Relay Chat (IRC). Most recently, internet telephony hardware and software allow real time conversations. The most used part of the internet is the World Wide Web (often abbreviated “www” or called “the web”). Its outstanding features is hyper text, a method of instant cross-referencing. In most website certain words or phrases appear in text of a different colour than the rest; often this text is also underlined. When you select one of this word or phrases, you will be transfer to the site or page.that is relevant to this word or phrase. Sometime there are button, images ore portion of images that are “click able.” If you move the pointer over the spot on a website and the pointer changes into a hand, this indicate that you can click and be transfers to another site. Using the web you have access to millions of pages of information. Web browsing is done with a Web browser, the most popular of which are:- Microsoft Internet Explorer and Netscape Navigator. The appearance of a particular website may vary slightly depending on the you use. Also later versions of the browser are able to render more “bells and whistles” such as animation, virtual reality, sound and music file than earlier versions. Now google chrome, mozilla firefox and many others are available then what news? We shall talk about that,Stay update.