innovation of web

INNOVATION OF WEB

Agenda

What is Web?HistoryFunction of WebBasic Web entitiesWeb StandardizationWeb GenerationsReferences

What is Web

Defination-It is a hypertext system that operates over the internet.It is a global information medium which users can read and write via computers connected to the Internet.

Difference between Internet And Web

Internet- Collection of interconnected computer networks.

World wide web-Infinitely larger collection of interconnected documents or content.

I have a dream for the Web [in which computers] become capable of analyzing all the data on the Web the content, links, and transactions between people and computers. A Semantic Web, which should make this possible, has yet to emerge, but when it does, the day-to-day mechanisms of trade, bureaucracy and our daily lives will be handled by machines talking to machines.

Tim Berners-Lee, 1999

History

1980-ENQUIRE by Tim Berners-Lee at CERN,which was the predecessor to the World Wide Web.It was a simple hypertext program.-ENQUIRE had pages called cards and hyperlinks within the cards.-There was a need that people were able to create cards independently of others and to link to other cards without updating the linked card.

To be Continued.....

1984Berners-Lee considered its problems of information presentation: physicists from around the world needed to share data, and with no common machines and no common presentation software. He wrote a proposal in March 1989 for "a large hypertext database with typed links".

September 1990Berners-Lee and Cailliau pitched their ideas to the European Conference on Hypertext Technology.


Christmas 1990Berners-Lee had built all the tools necessary for a working Web: 1.HyperText Transfer Protocol (HTTP)2.HyperText Markup Language (HTML)3.First Web browser (named WorldWideWeb, which was also a Web editor)4.First HTTP server software (later known as CERN httpd)5.First web server6.First Web pages that described the project itself.The browser could access Usenet newsgroups and FTP files as well


August 6, 1991-The debut of the Web-Berners-Lee posted a short summary on the alt.hypertext newsgroup.-Project aims to allow all links to be made to any information anywhere.-To allow high energy physicists to share data, news, and documentation.

1992-1995:Growth of www-Graphical browser-Mosaic-Microsoft windows browser-Cello-May 1994- the first International WWW Conference-September 1994- the World Wide Web Consortium (W3C)


1996-1998:Commercialization of www-Public web presence-Free publishing-E-commerce

1999-2001:'Dot Com' Boom

2002-present

-Google search engine-Social networking sites-Online departent stores-Advertising sites & auction sites

Client(Browser)

Web Server

Client(Browser)Client(Browser)Internet

1) Client makes webpage request using HTTP request msg.

2) It sends request from client to Web server

Web server stores collection of web-pages created using markup language.

Port 80

3) When requst arrives , server locates the requested page and send it to client using HTTP response msg.

Function of Web

Basic Web Entities

1) HTML : Hypertext Markup Language It is used to create web page that is stored on web-server and provides information to client.2) HTTP : Hypertext transfer protocol It is a protocol for transmitting web page over the internet.

3) URL : Uniform Resource Locator User types URL into browser(client) specifying the server hosting web page.

Web Standardiztion :

Web standard is general term for formal standards and other technology specification that define and describe aspect of WWW

World Wide Web Consortium W3C is main international standard organization for www founded by Tim Berners-Lee in 1994.

W3C standard: HTML, CSS, SOAP, XML, XSLT, Xquery, XHTML

HTML :Markup language for creating web page allows images and objects to be embedded and support intreactive formsVersions :1) HTML 2.0 : Nov. 1995 by IETF HTML working group2) HTML 3.2 : Jan 1997 W3C recommendation New features such as fonts tables, applet etc.3) HTML 4.0 : Dec 1997 W3C recommendation Introduced CSS4) HTML 4.1 : Dec 1999 W3C recommendation Just fixes bugs/error from HTML 4.05) XHTML 1.0: Jan 2000 W3C recommendation Reformulates HTML 4.01 into XML6) HTML5: New generation for HTML Still in progress

Highlight of HTML5

Co-operation between W3C and WHATWG

Modern browser support HTML5

New Elements:

1) Media element: :- sounds, audio streams (mp3, wav) :- movie, video stream (mpeg4, webM) :- For embedded content such as plug in2) Canvas Element: To make drawing on web page. Uses JavaScript to make drowing on Web page.3) Input Element: tel,search,url,email,date

Web Generations

Web 1.0-Mostly read-only web

Web 2.0-Wildly read-write web

Web 3.0-Portable personal web

Web 1.0

Put content in web and push it to users

Static pages instead of dynamic user-generated content.

The use of framesets.

The use of tables to position and align elements on a page.

Online guestbooks.

GIF buttons, typically 88x31 pixels in size promoting web browsers and other products.

HTML forms sent via email.

Defects-

1-Limited Content2-Limited Creativity3-Limited Business

Characteristics:Rich user experience

User participation

Dynamic content

Metadata

Web standards

Scalability

Openness

Collective intelligence

Web 3.0

Next generation of web

Web 3.0 browser will act like personal assistant

Understood information over web

Instead of only keyword search ,it employs context based search

An approach to implement web 3.0 is semantic web

Ontologies

References

http://info.cern.ch

http://oreilly.com/web2/archive/what-is-web-20.html

http://en.wikipedia.org/wiki/History_of_the_World_Wide_Web

http://en.wikipedia.org/wiki/Semantic_Web

Thank You.....

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