How does the Internet Work?
* The Internet is a worldwide collection of computer networks, cooperating with each other to exchange data using a common software standard. Through telephone wires and satellite links, Internet users can share information in a variety of forms. * The size, scope and design of the Internet allows users to: * Allows easily through ordinary personal computers and local phone numbers; * Exchange electronic mail (E-mail) with friends and colleagues with accounts on the Internet; * Post information for others to access, and update it frequently; * Access multimedia information that includes sound, photographic images and even video; and * Access diverse perspectives from around the world.
* The conceptual foundation for creation of the Internet was largely created by three individuals and a research conference, each of which changed the way we thought about technology by accurately predicting its future: * Vannevar Bush - wrote the first visionary description of the potential uses for information technology with his description of the "memex" automated library system. * The theoretical father of the Web
* Norbert Wiener - invented the field of Cybernetics, inspiring future researchers to focus on the use of technology to extend human capabilities. * Marshall McLuhan - made the idea of a global village interconnected by an electronic nervous system part of our popular culture. * The 1956 Dartmouth Artificial Intelligence conference - crystallized the concept that technology was improving at an exponential rate, and provided the first serious consideration of the consequences. (Styne, 1998)
What is the Internet?
* The Internet is the world’s largest computer spanning nearly of the entire globe. * Used by people worldwide, the Internet is used to describe the global system of interconnected networks as these are of computers of any kind, either you are using a PC or a Mac, Unix, or any flavors of systems or software. * It is also referred to as Web, Cloud, Matrix, Cyberspace, I-Way, Information Superhiway, or simply the “Net”. * People who have access to the Net are called Net surfers, Cyber surfers, Internauts, or Netizens. * The Internet is a network of computers linked together. It started in 1969 as a US military experiment to share computer resources more efficiently. Later, it was expanded to include colleges and research facilities. * Today, the Net has grown into a massive public broadcast medium. It is an international network of mixed computer technology with more than 600 million users using several different computer languages called protocols . * The Internet is a worldwide system of interconnected computer networks. The computers and computer networks exchange information using TCP/IP (Transmission Control Protocol/Internet Protocol) to communicate with each other. * The computers are connected via the telecommunications networks, and the Internet can be used for e-mailing, transferring files and accessing information on the World Wide Web. But the meaning may depend on how you look at it. It can be correctly defined as a: * Computer network composed of thousands of similar networks (all of which use certain communication protocols) * As a community of people who build and use those networks. * As a worldwide network of millions of computers and servers that uses various telecommunication system technologies to carry information from one place to the other * An interconnection of computer networks or through a public connection – the global consortium of interconnected computer networks. The internet best fits what Information Technology has to offer – the convergence of technologies – Computer, Information, Telecommunications, Multimedia & People. (John & Edriel, 1999)
What Kinds of Information are Available?
* Text documents