Created by:- Group No 03 Class Intake KDU 32BSc (IT)

WEB BROWSERS

What is a Web Browser?

Definition

In simple Words a web browser is a program used toInterpret and view HTML documents.

OR

A web browser is a software application for retrieving, presenting, and traversing information resources on the World Wide Web.

The first web browser was invented in 1990 by Sir Tim Berners-Lee. It was called WorldWideWeb (no spaces) and was later renamed Nexus.

In 1993, browser software was further innovated by Marc Andreessen with the release of Mosaic (later Netscape)

Microsoft responded with its Internet Explorer in 1995, also heavily influenced by Mosaic, initiating the industry's first browser war.

Opera debuted in 1996.

January 1998 was also the month that Netscape started the open source Mozilla project.

Google's Chrome, the most famous major entrant to the browser market, first released in September 2008.

How all this started?

History

How Browser Work?

The browser main functionality is to present the web resource you choose, by requesting it from the server and displaying it on the browser window.

The resource is usually an HTML document, but may also be a PDF, image, or other type.

The location of the resource is specified by the user using a URI (Uniform resource Identifier).

As You Write URL and hit GO button browser program sends a request (Could I have the web page please?)  to a web server program running on the remote computer.

The server program, gathers the request from the web browser, tries to hunt for the web page and then formulates a response.

How Browser Work? Contd.

If server was able to locate the web page, it sends the HTML file to the web browser.

The browser picks up all the information coming in from the server and does its best to display the web page. 

A typical web page not only has text but also images and these are separate files that need to be transferred from the server to the browser.

The browser-server communication goes on till all the files have been transferred to the browser.

After that Browser-server connection is disconnected and Web Page is Displayed on the browser window.

POPULAR BROWSERS

First Browser War started…

INTERNET EXPLORER

Microsoft licensed Mosaic from Spyglass as the basis of Internet Explorer 1.0.

First version came in 1995.

3 And thus it all started...

2

1

A new Entry in Browser’s war

OPERA

Development of Opera web browser began in 1994 when it was started as a research project at Telenor.

In 1995, the project branched out into a separate company named Opera Software ASA.

3First publicly available version released in 1996.

2

1

Mozilla is formed…

MOZILLA

Netscape starts the open source Mozilla project.

It was produced to build a competitive open source browser.

3 First release was in 2004.

2

1

Steve Jobs enters in Browser market

SAFARI

Until 1997, Apple Macintosh computers were shipped with the Netscape Navigator.

Later for Mac OS Internet Explorer is used as default browser.

3On January 7, 2003, at San Francisco, Steve Jobs announced Safari.

2

1

Browser war Intensifies

CHROME

A free Web Browser developed by Google.

It uses the same Engine which is used by Apple’s Safari i.e. Web Kit

3 It was first released as a beta version for Microsoft Windows on September 2, 2008.

2

1

Your own footer Your Logo

Question from us

Who is #1…

Any Queries…

THANK YOU!