1. Using the Internet

2. A Brief History 1969 – ARPANET created by US Govt. to link defense installations with major universities 1972 – First email 1982 – TCP/IP is developed. 1983 – MILNET separates from ARPANET Mid 1980s – NSFNET replaces ARPANET 1989 – WWW developed by Tim Berners-Lee

3. Timeline Continued 1993 – First Web browser, Mosaic 2006 – Over 92 million Websites are online

4. URL (Uniform Resource Locator) The address of a Web site. Ex: http://www.youtube.com http://www.pmsd.org/pmehs/http://www.free.com/kerby/page4.html

5. Parts of a URL http://www.acme.com/support/techtips/2004.html ProtocolDomain Name PathFile Name Protocol: method of data transfer; defined by rules http Hypertext Transfer Protocol ftp File Transfer Protocol

6. Parts of a URL http://www.acme.com/support/techtips/2004.html Domain name: identifies the Web server Ex: www.youtube.com www.pmsd.org www.free.com ProtocolDomain Name PathFile Name

7. Parts of a URL http://www.acme.com/support/techtips/2004.html Path: folder document is stored in Works like the paths (or folders) on your H drive ProtocolDomain Name PathFile Name

8. Parts of a URL http://www.acme.com/support/techtips/2004.html File name: name of a Website file. Can be any file type including images, sound files, and documents like Word (.doc) and Adobe Reader files (.pdf) ProtocolDomain Name PathFile Name

9. Domain Suffixes:.com – commercial (for profit) based for business..com – commercial (for profit) based for business..gov - government agency.gov - government agency.mil - military agency.mil - military agency.org - business or independent organization,.org - business or independent organization, usually NOT for profit usually NOT for profit.int - large international organization like NATO.int - large international organization like NATO.net - large organization/network.net - large organization/network.edu - university or other educational facility.edu - university or other educational facility

10. Adding other initials after the domain identifies the country or country code..uk - United Kingdom.uk - United Kingdom.nz - New Zealand.nz - New Zealand.au - Australia.au - Australia.fr - France.fr - France.jp - Japan.jp - Japan.is - Iceland.is - Iceland.us - United States.us - United States

11. DNS (Domain Name Server) Converts Domain Names to IP Addresses Easier to remember the nameEasier to remember the name IP Address format: 999.999.999.999 Ex: 42.17.127.9 255.0.0.1 255.0.0.1

12. Questions?