Internet is revolutionizing our socitey, our economy and our tecnological system. No one knows for certain how far, or in what direction, the internet will evolve. But no one should underestimate its importance.Over the past centuary and a half, important tecnological developments have created a global enviroment that is drawing the people of the world closer and closer together. During the industrial revolution, we learned to put motors to work to magnify human and animal muscle power. In this new information age, we are learning to magnify brainpower by puting the power of information services on a global basis. Computer resources are infinitely flexible tools; network together, they allow us to generate exchange, share and manipulate information in an uncountable number of ways.
The internet as an integrating force, has melded the tecnology of comunications and computing to provide instant connectivity and global information services to all its users at very low cost.
Ten years ago, most of the world knew little or nothing about the internet.It was the private enclave of computer scientists and researchers who used it to intract with colleagues in their respective disciplines. Today, the internet's magnitude is thoudsand of times, what it was only a decade ago. It is estimate that about 60 millions host computers on the internet today serve about 200 millions users in over 200 counteries and territories. Today telephone system is still much larger : about 3 billion people around the world now talk on almost 950 million telephone lines (about 250 million of which are actually radio-based cell phone).
The internet is a standardlized, global system of interconnected computer networks that connects millions of people. The system uses the internet protocol suite (TCP/IP) standard rules for data representation, signaling, authentication and error detection. It is a network of network that consists of million ofprivate and public, acadmic, usiness, and goverment networks of local to global scope that are linked by copper wires, fibre-optic cables,wireless connection, and other tecnologies. The internet carries a vast array of information resources ans services, mostly notablle the inter-linked hypertext document of the world web wide (www) and the infrastructure to support electronic mail, in addition to popular services such as video on demand, on-lineshopping , on-line gaming, exchange of information from one-to-many or many-to-many by online chart online social networking, online publications, file transfer file sharing and voice over internet protocol(VoIP)
or tecnology, telepresence person to person communicating via voice or video.
- The internet is a global network of networks.
- People and organization connect into the internet so the can acess its massive store of sshare information.
- The internet is an inherently participate medium.Anybody can publish information to create new services.
- The internet is a cooperative endeavour-no organization is in charge of the net.
- The internet is a network of networks, linking computer's sharing the TCP/IP protocol. Each runs softwear to provide a "serve" information and/or to acess and view information.
1.1.1 Internet is not only the network of networks but it has three components
- Network of Networks
- Network with information and resources
- User's onthe network
1.1.2 Some facts about internet
- The internet is the transport vehicle for the information stored in files and folders on another computer.
- It can be compared to an international communication utility sericing computers.It sometimes compared to a giant international plumbing system.
- The internet itself does not contain any type of information. It a slight misstatement to say a "document was found ont he internet".It would be more correct to say it was found through or using the internet.What it was found in (or on) is one of the computers linked to the internet.
1.1.3 Computers on the internet may use one or allof the following onternet services
- Electronic mail(e-mail). it permits us to send and receive mails.
- Telnet or remote login. it permits your computer to log in to another computer and use it as if you were there.
- FTP or File Transfer Protocol. It allows your computer to rapidly retrieve complex files intact from a remote computerand view to save them on your computer.
- The world wide web(WWW). The largest, fastest growing activity on the internet.
- RSS Readers, interpreting XML in a way analogous to how browsers interpret HTML.
1.2 EVOLUTION OF INTERNET