The document provides an overview of the history and development of the Internet from its origins in the 1960s as a small network connecting a few computers to its current state as a global network with hundreds of millions of connected devices. It discusses how the Internet has grown from just a few hosts in the late 1970s to over 200 million hosts by 2002. It also describes some of the key organizations that help govern and set standards for the Internet as well as common services and website types found online like email, the World Wide Web, search engines, news sites, and others.

1. 01.Introduction to Internet-1 By Waruna Lakmal

2. What is Internet “ A communication network of computer networks which operates world-wide that exchanges data, news and opinions etc.” It started with four interconnected computers in 1969 and was known as ARPANET (Advanced Research Projects Agency NET). Today Internet connects every university, government, and research facilities in the world including many commercial sites.

3. What is Internet The Internet; Is a source of information Is a means of communication Is a medium through which to conduct business Is a source of getting fun and many more…

4. History of the Internet How did the Internet originate?

5. History of the Internet Who controls the Internet? No one c — c it is a public, cooperative, and independent network Several organizations set standards

6. Internet Usage http://www.internetworldstats.com/stats.htm http://www.internetworldstats.com/asia/lk.htm http://en-us.nielsen.com/rankings/insights/rankings/internet http://www.mit.edu/~mkgray/net/

7. Internet Growth Trends 1977: 111 hosts on Internet 1981: 213 hosts 1983: 562 hosts 1984: 1,000 hosts 1986: 5,000 hosts 1987: 10,000 hosts 1989: 100,000 hosts 1992: 1,000,000 hosts 2001: 150 – 175 million hosts 2002: over 200 million hosts By 2010, about 80% of the planet will be on the Internet

8. No. of Participating Hosts Oct. ‘90 - Apr. ‘98

9. Domain Name Registration Jan. ‘89 - Jul. ‘97 April 2001: 31,000,000 Domain Names!!!

10. The Internet was not known as "The Internet" until January 1984, at which time there were 1000 hosts that were all converted over to using TCP/IP. Chart by William F. Slater, III Sept. 1, 2002 Dot-Com Bust Begins Copyright 2002, William F. Slater, III, Chicago, IL, USA

11. The Internet Host Count in Real-time on September 1, 2002 - Over 204,000,000 IP Hosts!!! Chart showing Internet Growth from Sept. 1, 2001 to Sept. 1, 2002. Source Netsizer.com

12. History of the Internet Who controls the Internet? No one c — c it is a public, cooperative, and independent network Several organizations set standards World Wide Web Consortium (W3C) Oversees research, sets standards and guidelines Mission is to contribute to the growth of the Web Nearly 400 organizations around the world are members of the W3C

13. The Internet What are some services found on the Internet ? Electronic Mail WWW Service Chat and Video conferencing News Groups File Transfer etc

14. The World Wide Web What is the World Wide Web (WWW) ? A worldwide collection of electronic documents Each electronic document is called a Web page Also called the Web Can contain text, graphics, sound, video, and built-in connections A Web site is a collection of related Web pages

15. The World Wide Web What is a Web browser? Program that allows you to view Web pages What are the features of web browsers? Microsoft Internet Explorer Netscape Firefox Opera Safari Google Chrome

16. The World Wide Web What is a home page ? The first page that a Web site presents Often provides connections to other Web pages

17. The World Wide Web How do handheld computers and cellular telephones access the Web? Use a micro browser that displays Web pages that contain mostly text Must be Web-enabled WAP/GPRS

18. The World Wide Web What is downloading ? The process of a computer receiving information Depending upon connection speed, downloading can take from a few seconds to several minutes/hours

19. The World Wide Web What is a URL ? Unique address for a Web page A web server delivers the Web page to your computer

20. The World Wide Web What is a hyperlink (link) ? Item found elsewhere on same Web page Different Web page at same Web site Web page at a different Web site Built-in connection to another related Web page location

21. The World Wide Web What is a search engine ? Program used to find Web sites and Web pages by entering words or phrases called search text Also called a keyword

22. Advocacy Blog Wiki Social Network Content Aggregator Personal Portal News Informational Business/ Marketing Educational Entertainment The World Wide Web Basic types of Web sites?

23. The World Wide Web Basic types of Web sites? Portal News Informational Business/marketing Educational Entertainment Advocacy Personal

24. The World Wide Web What is a portal ? A Web site that offers a variety of services from one, convenient location, usually for free Searching, sports, e-mail, news, weather, auctions, Web communities (Web sites that join people with similar interests) Eg; www. Yahoo.com www.wow.lk

25. The World Wide Web What is a news Web site ? Contains newsworthy material Stories and articles relating to current events, life, money, sports, and weather Eg: www.lankadeepa.lk www.dailynews.lk

26. The World Wide Web What is an informational Web site ? Contains factual information Created by organizations and government agencies

27. The World Wide Web What is a business/marketing Web site ? Contains content that promotes products Allows you to purchase products or services online Eg; www.sampath.lk

28. The World Wide Web What is an educational Web site ? Some companies offer online training for employees Some colleges offer online classes and degrees Offers avenues for formal and informal teaching and learning Source: www.howstuffworks.com

29. The World Wide Web What is an entertainment Web site ? Offers an interactive environment featuring music, video, sports, games, and more

30. The World Wide Web What is an advocacy Web site ? Contains content that describes a cause, opinion, or idea Eg; www.petition.com

31. The World Wide Web What is a Web Blog ? A blog (a contraction of the term "Web log") is a Web site, usually maintained by an individual with regular entries of commentary, descriptions of events, or other material such as graphics or video. Entries are commonly displayed in reverse-chronological order. "Blog" can also be used as a verb, meaning to maintain or add content to a blog . Many blogs provide commentary or news on a particular subject; others function as more personal online diaries.

32. The World Wide Web What is a Content Agregator ? A content aggregator is an individual or organization that gathers Web content (and/or sometimes applications) from different online sources for reuse or resale.

33. The World Wide Web What is a Wiki ? A wiki is a page or collection of Web pages designed to enable anyone who accesses it to contribute or modify content

34. The World Wide Web What is a personal Web site ? Web page maintained by private individual Reasons: sharing life experience with the world or job hunting

35. What is HTML? Hypertext Markup Language is the authoring software language used on the Internet's World Wide Web. HTML is used for creating World Wide Web pages How do we create interactive multimedia web pages No need to know HTML Microsoft Word Macromedia Dreamweaver Microsoft FrontPage etc... .

36. Q & A ?

37. Thank you…