1. THE INTERNET History and Origin

2. 19501950 1 computer filled an entire room Cost = $300,000+ Not found in homes Only in governments, some universities and large corporations

3. Late 1950s Tension between the USSR and the US USSR launches Sputnik, first artificial earth satellite Advanced Research Projects Agency (ARPA) formed by US Department of Defense Goal = develop technology to communicate during a nuclear attack

4. 1960s1960s Doug Engelbart makes an "oNLine System" (NLS) which does hypertext browsing, editing, email, and so on He invents the mouse to help navigate Massachusetts Institute of Technology (MIT) started sharing information in small, phone-linked networks

5. 1969 ARPANET Figured out that you could connect several computers together and “talk” Connected 4 sites: –University of California at LA –University of California at SB –Stanford Research Institute –University of Utah

6. 1970s1970s 63+ total organizations in network - including Harvard, NASA, and international organizations First email sent TCP (Transmission Control Program) begins UNIX developed at AT&T USENET developed – mother of all networked discussion groups

7. 1980s1980s 1000+ host computers in network TCP/IP protocol was introduced Name server developed The first registered domain = Symbolics.com Symbolics.com First widespread Internet worm affects thousands of computers

8. 1990s1990s HTML (Hypertext Markup Language) arrives 1991 - Tim Berners-Lee links components to form World Wide Web Annual growth of Internet 300,000+%!! Happy 25 th birthday, ARPANET

9. 1990s (cont.) RealAudio introduces streaming Internet Dial-up emerges (AOL, Compuserve) MCI, Microsoft and Netscape to have most popular Internet browser 70,000+ mailing lists exist

10. Early 2000s Code Red worm and Sircam virus cause security breaches in thousands of web servers and email accounts First real-time HDTV transmission across a wide-area network Blogs become popular Law creates kids-safe domain (kids.us) More DNS root servers internationally