20070401210417KPT5033_K11

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The Internet and the Web

Large network that connects smaller

networks globally Launched in 1969

± National computer network

± US funded project called ARPANET

World Wide Web introducedin 1992 at C ERN

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The Internet and the Web

It is made up of wires, cables, and satellites.

The Web provides a multimedia interface for resources on the Internet.

It is also known as the World Wide Web(WWW).

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Common Internet Uses

Communicating

± Exchange e-mail ± Chat

± Vidoe conference

± IM

± Discussion Groups

Shopping Searching

Entertainment

Education or e-learning

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Access Providers

Common way to access the Internet

Commercial Internet Service Providers (ISP )± National

± Regional

± Wireless serviceproviders

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Browser

Basi

cs

Programs that provide access to Web resources or allow us to surf the Internet

Well-known browsers

± Netscape Navigator

± Mozilla Firefox

± Opera± Microsoft Internet Explorer

Address or location of the specified resource known as

URL

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URLs

Uniform Resource Locator

± All URLs have at least two parts

Protocol

Domain name

Locates Web sites

http://www.upsi.edu.my

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More on Browsers

Browsers interpret H TML commands± Hy pertext Markup Language

± Contained in a document

Display document as a Web page

The Web page provides links to other related pages.

A Web server stores and shares related Web pages.

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Communication

Most popular Internet activity

Types of communication± E-Mail

E-Mail Address

± Discussion Groups

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E-Mail

Transmission of electronic messages over theInternet

Basic parts± H eader

Address

Subject

Attac hment

± Message

± Signature

Instant Messaging

Page 34Return

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E-Mail Address

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Return

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Discussion Groups

Mailing lists

Newsgroups

Chat groups

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Return

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Discussion Groups

Discussion groups use e-mail for

communication.

Mailing lists members communicate by

sending messages to a list address.

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Discussion Groups

Newsgroups use a special network of

computers called UseNet. Chat groups:

± Chat groups allow direct communication.

± Internet Relay Chat (IRC) is a popular chat

service.

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Discussion Group Terms

Someone who has comprehensive knowledge about a subjectWizard

A sequence of ongoing messages on the same subjectThread

Someone who aids new users by answering questionsSaint

Request for discussionRFD

Reading news but not joining in to contributeLurking

Insulting, putting down, or attackingFlaming

DescriptionTerm

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Sear ch Engines

Specialized programs to assist in locating

information Types of searches

± K ey word searc h

± Director y searc h

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Sear ch Engines

Yahoo¶s

search

engine

provides

keywords

and

directory

search

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Web Utilities

Web utilities are programs that make Internet

and Web access easier and safer. Telnet & File Transfer Protocol (FTP) are

Internet standards.

Plug-ins are programs that operate as a part

of the browser. Filters block access to selected Web sites.

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Web Utilities

Telnet

FTP Plug-ins

Filters

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Plug-in Source

Acrobat Reader www.adobe.com

Media Player www.microsoft.com

QuickTime www.apple.com

RealPlayer www.real.com

Shockwave www.macromedia.com

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Summary

The Internet is a network that connects smaller networks.

The Web provides an interface for resources on the Internet.

The most common means to access the Internet is through an Internet ServiceProvider.

Browsers provide access to Web resources

The common types of Web pages are portals and directories, news andinformation, exploration and education, business, advocacy, and personal.

The most popular types of Internet communication are e-mail, instantmessaging, and discussion groups.

Search engines are used to locate information on the Web. Web utilities are programs that make Internet and Web access easier and

safer.

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Any Question @ Comment

Thank you

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Exer cise

Create your own email account:

± http://www.yahoo.com Send email with an attachment file.

± The email should contain Name & Student ID.

± The attachment file should contain school name & address.

± The email should send to the address below:

[email protected]

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