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Evolution of the Internet. 1960s. U.S.Department of Defense. • Created Arpanet - a group of networked computers. Need for global communication in case of enemy attack. - Cold War with communist countries. - Fear of Nuclear War. Arpanet. Advanced Research Projects Agency.

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1960s
1960s
  • U.S.Department of Defense

• Created Arpanet - a group of networked computers

  • Need for global communication in case of enemy attack

- Cold War with communist countries

- Fear of Nuclear War

arpanet
Arpanet
  • Advanced Research Projects Agency

Any one of the networked computers could connect

Communication system in case of enemy attack

Was text based, not point-and-click

1980s
1980s
  • Beyond defense
  • National Science Foundation created a network connecting:
  • Educational institutions &
  • Research labs
internet is born
Internet is Born
  • Arpanet(work) + NFS network

Internet = Network of networks

Connected by phone lines & trans-oceanic cables

1990s
1990s
  • Use of Internet by general public

Funding changed making it more affordable (cheaper)

Development of WWW (point & click) made it more

user friendly (easier to use)

Popularity of Internet exploded

internet or www
Internet or WWW?
  • Internet is network of networks

• World wide web is:

• a subset of the internet

•a system of linked hypertext documents

•a point & click system making easy web “surfing”

who owns regulates the internet
Who Owns/Regulates the Internet?
  • No one “owns” the internet
  • W3 Consortium
    • Sets language & protocal
  • IANA -Internet Assigned Numbers Authority
    • Guarantees no two domain names are identical
using the internet
Using the Internet
  • Search engines/directories
  • FTP - (file transfer protocol) uploads/downloads in packets
  • URL - uniform resource locator
    • http://www.w3.org
21st century the internet evolves
21st Century The Internet Evolves
  • FTP - file transfer protocal
  • World Wide Web - HTTP
  • Email
  • Instant messaging
  • Blogging
  • Social networking
  • Wireless/mobile/portable internet
  • What else?