Saturday, 21 December 2013

Internet VS WWW

Difference between Internet and World Wide Web 
                
Many people believe that the Internet is the same as the World Wide Web (WWW).
Internet
                   The Internet is a huge network of computers including servers connected by cables across the world.





WWW 
         is the collection of all the websites available on the Internet. 

                 To know about the invention of the Internet we might have to delve a little further.

             The first person who thought of the idea to transfer information between different systems was Leonard Kleinrock. His first paper titled 'Information Flow in Large Communication Nets' was published on May 31, 1961. He replaced the old circuit switching process with a new concept that involved transmission of data via packets.

The Idea of a Network

                         The Soviet Union had launched the first satellite, Sputnik I, that prompted the US President Dwight Eisenhower to create the ARPA (Advanced Research Projects Agency) to stay in the lead in the arms race. J.C.R. Licklider was appointed as the head of the new IPTO (Information Processing Technology Office) organization in 1962. He applied his vision of a 'Intergalactic Computer Network' which outlined most of what Internet today is, including concepts like cloud computing. His contribution is, however, mainly in terms of ideas.

Different things that contribute
  • E-mail: The most widely used form of communication today, the e-mail, was first developed in 1972, by Ray Tomlinson.
  • TCP: In 1973, Vinton Cerf and Robert Kahn designed the TCP (Transmission Control Protocol). This was a major improvement over the NCP (Network Control Program).
  • Ethernet: In 1973, Bob Metcalfe managed to develop the first Ethernet. By the eighties, it became vastly popular due to its adaptability to low-cost wiring.

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