1. Student Name Class Period The Internet

2.  Global system of interconnected computer networks  Serves billions of users  Millions of private, public, academic, business, and government networks

3. When? 1970 – DoD established four nodes on the ARPANET 1973 Ethernet method of network connection devised. 1979 computer “worm” discovered at Xerox PARC 1975 Telenet, the first packet- switching network was born 1971 The first e-mail is sent 1983 ARPANET splits into the ARPANET and MILNET 1979 USENET established as a means for providing mail and file transfers. 1985 Whole Earth ‘Lectronic Link (WELL) started 1985 NSFNET formed linking five supercomputers 1993 Mosaic web browser is released, first commercial software that allowed graphical access to content on the internet 1990 World Wide Web is born when Tim Berners- Lee develops HTML 1994 Mosaic now available for several operating systems such as Mac OS, Windows, and AmigaOS

4.  Xerox Palo Alto Research Center (PARC) – Palo Alto, CA – Ethernet developed  Duke University/University of North Carolina at Chapel Hill – USENET established  Geneva, Switzerland – Tim Berners-Lee invents HTML while a researcher at CERN

5.  Ray Tomlinson – sent the first e-mail, credited with adding the “@” sign in e-mail  Robert Metcalfe – devised the ethernet method of network connection  Larry Roberts – inventor of Telenet

6.  http://en.wikipedia.org/wiki/Internet http://en.wikipedia.org/wiki/Internet  http://www.computerhistory.org/timeline/?categ ory=net http://www.computerhistory.org/timeline/?categ ory=net  http://www.w3.org/People/Berners-Lee/ http://www.w3.org/People/Berners-Lee/  http://inventors.about.com/library/weekly/aa091 598.htm http://inventors.about.com/library/weekly/aa091 598.htm

7. Student Name Class Period The Internet