World Wide WebPresented By

Al Mamun Khan

(WWW”, "Web" or "W3“)

➢What is World Wide Web?➢History of the World Wide Web➢Structure➢WWW Components ➢Web Fundamentals➢How to access the web?➢Full Structure of a Public URL➢The Difference Between Internet and WWW➢Growth of World Wide Web➢Total number of Websites➢Examples➢Comment

Overview

❖ Commonly known as “www” or triple w (w3)” also

called as “web” .

❖Way of exchanging information.

❖A document on the web is called a Web page ,

identified by a unique address called URL[1].

❖Uniform Resource Locator (URL) commonly referred

to as a Web address.

What is World Wide Web

❖Invented By : Tim Berners-Lee

❖In 1989 invents the World Wide

Web (www) at CERN [2].

❖ Published in 1992

❖Text mark up language

❖Not invented by Berners-Lee

❖Simple and easy to use.

Tim Berners-Lee

History of the World Wide Web

Tim Berners-Lee

Structure

❖Web pages constructed by HTML.

❖Clients use browser application to send URIs via HTTP

to servers requesting a Web page.

❖Servers respond with requested Web page or with error

message.

❖ Page is written using Hyper Text Markup Language

(HTML)

❖Displaying text, graphics and sound in browser[3].

WWW Components

❖ Structural Components:

✓Clients/browsers

✓ Servers

✓Caches

✓ Internet [4].

❖ Semantic Components:

✓Hyper Text Transfer Protocol (HTTP)

✓ Hyper Text Markup Language (HTML)

✓Extensible Markup Language (XML)

✓Uniform Resource Identifiers (URIs)[3].

World Wide Web (WWW)

✓Global hypertext network of millions of Web

servers & browsers

✓Connected by Hypertext Transfer Protocol

(HTTP)

✓Web pages can be designed by Hypertext

Markup Language (HTML)

Web Fundamentals

Web Fundamentals

❑ Web Browser

✓A web browser displays a web

document and enables users to access

web documents.

❑ Web Server

✓Servers respond with requested Web page

or with error message.

❑ Uniform Resource Locator(URL)

✓These are the web addresses.

We type URL in address bar of the browser then hit on

enter then URL request a web pages to the web server [5].

How to access the web?

❖Follow these steps, Open your web

browser .

❖Write the address in the address bar.

❖Hit the ENTER key or click on the

GO button.

Full Structure of a Public URL

It is the Hypertext

Transfer Protocol

The domain

name of web

server on which

page is located.

It identifies

the location of

the document

on internet

It identifies

the resource

name.

Difference Between Internet & WWW

➢Internet is a global system of interconnected computer

network.

➢Massive network of networks.

➢connecting millions of computers.

❑ Internet

❑ World Wide Web

➢WWW is one of the services that run on internet.

➢WWW is a system of interlinked hypertext

documents accessed via Internet.

➢Simply, Large portion of internet [6].

Growth of World Wide Web

Total number of Websites

Examples Of WWW

✓http://www.juw.edu.pk/

✓http://almamunkhan.webs.com/

✓http://www.google.com

✓https://www.twitter.com/

✓http://almamunkhan.wordpress.com/

http://www.juw.edu.pk/http://almamunkhan.webs.com/http://www.google.com/https://www.twitter.com/http://almamunkhan.wordpress.com/

Comment

❖ WWW is a global information space which people

can read and write via computers connected to the

Internet .

❖ Web has revolutionized the way we communicate,

do business, access entertainment and share

information.

Reference

1. http://www.answers.com/topic/world-wide-web2. http://home.web.cern.ch/topics/birth-web3. http://www.tcpipguide.com/free/t_WorldWideWebSystemConceptsa

ndComponents.htm4. http://zeltser.com/web-history/5. http://www.webdevelopersnotes.com/basics/the_world_wide_web.p

hp36. http://www.webopedia.com/DidYouKnow/Internet/Web_vs_Internet

.asp7. http://www.google.com/8. http://www.wikipedia.org/

http://www.answers.com/topic/world-wide-webhttp://home.web.cern.ch/topics/birth-webhttp://www.tcpipguide.com/free/t_WorldWideWebSystemConceptsandComponents.htmhttp://zeltser.com/web-history/http://www.webdevelopersnotes.com/basics/the_world_wide_web.php3http://www.webopedia.com/DidYouKnow/Internet/Web_vs_Internet.asphttp://www.google.com/http://www.wikipedia.org/

Thank You for Listening

☺