Internet and web

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Internet and web

  1. 1. The Internet and the World WideWeb DJL
  2. 2. Source
  3. 3. A series of tubes?
  4. 4. World Wide Web “The World Wide Web (“WWW” or simply the “Web”) is a global information medium which users can read and write via computers connected to the Internet. The term is not a synonym for the Internet itself. The Web is a service that operates over the Internet, as e-mail does. The history of the Internet dates back significantly further than that of the World Wide Web.
  5. 5. 2008
  6. 6. World Wide Web Consortium (W3C)founded in 1994 by Tim Berners-Lee
  7. 7. Domain Name System  Hierarchical distributed naming system for computers, services, or any resource connected to the Internet or a private network.  Domain Name Service – DNS – is a database of names linked to Internet Protocol addresses (IP address). A DNS server is a special purpose computer that provides this service to web users.
  8. 8. IP Address mapped 127.0.0.1When IP addressing first came out, everyone thought that there wereplenty of addresses to cover any need. Theoretically, you couldhave 4,294,967,296 unique addresses (232) http://www.howstuffworks.com/dns.htm
  9. 9. Examples Top level domain suffixes: the root of the hierarchical name system See here for illustrative example
  10. 10. Domain Registration Through regstrar companies accredited by ICANN Why is it in America?

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