Chapter 2

Well its the second day of the class after a public holiday for us all to celebrate Malaysia's Independence day which was held on the 31st of August.Class started as usual at 8 am on a rather cold and damp Thursday morning,not the most ideal way to start a day but you have to do what you have to do.

Fundamentals of The World Wide Web and Internet.

Objectives :~ 

Discuss the evolution of the Internet
Identify and briefly describe various broadband Internet connections and state differences between broadband Internet connections and dial-up connections
Describe the types of Internet access providers
Describe the purpose of an IP address and its relationship to a domain name
Explain the purpose of a Web browser and identify the components of a Web address
Describe how to use a search engine to search for information on the Web and differentiate between a search engine and a subject directory

Describe the types of Web sites

Explain how Web pages use graphics, animation, audio, video, virtual reality, and plug-ins

Identify and briefly describe the steps required for Web publishing

Describe the types of e-commerce

Explain how e-mail, mailing lists, instant messaging, chat rooms, VoIP, newsgroups and message boards, and FTP work

Identify the rules of netiquette

The Internet? :~

The Internet is a worldwide collection of networks that links millions of businesses, government agencies, educational institutions, and individuals.The internet is what makes everything work nowadays as us humans depend more and more on it.

The Evolution of the Internet :~

The Internet originated as ARPANET in September 1969 and had two main goals :~

*Allow scientists at different physical locations to share information and work together

*Function even if part of the network were disabled or destroyed by a disaster

1969 ARPANET becomes functional ~> 1984 ARPANET has more than 1,000 individual computers linked as hosts ~> 1986 NSF connects NSFnet to ARPANET and becomes known as the Internet ~>1995 NSFNet terminates its network on the Internet and resumes status as research network ~> 1996 Internet2 is founded ~> Today More than 550 million hosts connect to the Internet.

Evolution of Internet Connectivity :~

Cable Internet service ~> DSL ~> Fiber to the Premises (FTTP) ~> Fixed wireless ~> Cellular Radio Network ~> Wi-Fi ~> Satellite Internet Service

How does a data travels the Internet using a cable modem connection :~

The World Wide Web :~

The World Wide Web, or Web, consists of a worldwide collection of electronic documents.
A Web site is a collection of related Web pages and associated items.
A Web server is a computer that delivers requested Web pages to your computer.

Web 2.0 refers to Web sites that provide a means for users to interact.

A Web page has a unique address called a URL or Web address

Two types of search tools are search engines and subject directories

*Search Engines : Find information related to a specific topic
*Subject Directory : Classifies Web pages in an organized set of categories

A search engine is helpful in locating items such as :~

Images,Videos,Audio,Publications,Maps,People or Businesses,Blogs.

Types of Web Sites :~ 

*Portal

*News
*Informational
*Business/Marketing
*Blog
*Wiki
*Online Social Network
*Education

*Entertainment

*Advocacy

*Web Application

*Content Aggregator

*Personal

Multimedia refers to any applications that combines text with :~

Graphics : A graphic is a digital representation of non-text information.

Animation : The appearance of motion created by displaying a series of still images in sequence.

Audio : Includes music, speech, or any other sound.

Video : Images displayed in motion.

Virtual Reality : Use of computers to simulate a real or imagined environment that appears as a 3D                                space.

A plug-in is a program that extends the capability of a Web browser.

E-Commerce :~ 

E-commerce is a business transaction that occurs over an electronic network.

Different types of E-Commerce :~

Business to Business (B2B)

Consumer (B2C)

Business to Government (B2G) 

Consumer to Consumer (C2C)

Mobile Commerce (m-commerce)