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Topic 1 - Intro. to the Internet


What is the Internet?

  • In brief, Internet is a network of a computer network.
  • The network enables a user to share the information among several millions other computers throughout the world.
  • You can communicate via the Internet using any computer, which support a network protocol called TCP/IP (Transmission Control Protocol / Internet Protocol).
  • This porotocol enables the computers to communicate.

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Internet Evolution

  • Internet began in 1969 as an experimental project. The US Department of Defense (DOD) wanted to develop a network could withstand - outages.
  • A principal goal was creating a system that could send messages along alternate paths in the event part of the network was disabled.
  • Internet at first was call ARPANET that was named for the group that sponsored its development, the Advanced Research Projects Agency of the DOD.
  • Over the years, ARPANET became a connecting thread of protocols that tied together such disparate networks.
  • By the end of the 1980s, the Internet - renamed from ARPANET - could best be described as a tool that connected people throughout the world using electronic communication.
  • In 1989, a researcher named Tim Berners-Lee proposed the idea of a World Wide Web. The web concept would organize Internet information into pages linked together through selectable graphics on a display screen.
  • The web is only part of the Internet - not the entire Internet is organized like the web into easy-to-read pages - but it is by far the most popular and fastest-growing part today.

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Internet Community

  • The Internet community of today is populated by individuals working for their own purposes, companies, and a variety of other organizations located both at home and throughout the world.
  • Users
    • Users are people who available themselves of the information content of the Internet in their work.
  • Service Providers
    • Service providers - often called access providers - are organizations that supply Internet connections to others. Service providers usually charge each subscriber a monthly fee to access the Internet, and some charge setup fees to open accounts.
  • Content Providers
    • Content providers are the parties that furnish the information available on the Internet.
  • Software and Hardware Companies
    • A wide variety of software and hardware companies make and distribute internet-related products.
  • Other Organizations
    • Many other organizations influence the Internet and its users.

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Myths about the Internet

  • Myth 1 : The Internet is free
    • This falsehood has been perpetuated largely by the fact that people can freely engage in long-distance email or chat exchanges without paying extra.
  • Myth 2 : Someone controls the Internet
    • No one group or organization controls the Internet, although many would undoubtedly like to do so.
    • Governments in each country have the power to regulate content and use of the Internet within their borders.
  • Myth 3 : The Internet and WWW are identical
    • Many people think the Internet and the web is the same thing.
    • While the web is the fastest-growing component of the Internet, it's not even the largest one. More people, in fact, use the Internet's e-mail facility that the web.

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