DESCRIPTION AND SIGNIFICANCE OF WORLD WIDE WEB,URL ,WEB BROWSER ..AND WORKING PRINCIPLE OF IT......

DESCRIPTION OF WORLD WIDE WEB:

Definition of world wide web:

www  is another way of describing about internet.

WORLD WIDE WEB(www)  is group internet sites interconnected by means of hypertext  and provides  audio,video ..in addition to graphics.


The  complete system of interlinked documents that uses  protocol  like http protocol that availed on the internet  and documents that are accessible to users through a web browser.......



cOllectively all the webpages on the internet are linked with each other ..it also includes  different kinds of documents and graphical media content... 

Internet resources are retrieved using http protocol...

WWW CONSTITUTES

WORLD WIDE WEB PROVIDES LARGE AMOUNT OF INFORMATION THAT IS REQUIRED

WORLD WIDE WEB IS FOR THE FOLLOWING  PROVIDING INTERNET,
SEARCH
BROWSER SUPPORT
ONLINE
WEB
HYPERTEXT(INTER LINKED DOCUMENTS)

WORLD WIDE WEB

                   Description of  HTTP:

 Hyper Text Transfer Protocol (HTTP) .

 The HTTP protocol forming the basis of today’s Web was invented by Tim Berners-Lee.

who also helped to create the World Wide Web Consortium (W3C) and who once stated that the World Wide Web is actually a universe of network-accessible data.







                                DESCRIPTION OF URL

                   (UNIFORM RESOURCE LOCATOR):

URL STANDS FOR UNIFORM RESOURCE LOCATOR...PREVIOUSLY IT WAS UNIVERSAL RESOURCE LOCATOR..


It is the address of a web page .. Each page has a unique web address(url)..

BY this the computer  locates the web page (i.e., pages will be on the server) that we want to find on the internet ....

example of url:
http://www.gmail.com/inbox.html
gmail is the domain name
com is the commercial extension
inbox.html  refers to specific page...

DESCRIPTION WEB BROWSER AND TYPES OF WEB BROWSERS:

Definition of web browser:

web browser  is basically a computer program 
(or)

web browser is group of programs with a graphical 

user interface for displaying html,jsp,asp files used 

to navigate from one link to other around the world 

wide web (or) internet.

"A WEB BROWSER IS A SOFTWARE APPLICATION"
used for retrieving and presenting the information 

from various information resources on the world 

wide web... 


An information resource is identified by URL/URI.

URI ---UNIFORM RESOURCE IDENTIFIER
URL ---UNIFORM RESOURCE LOCATOR


Resource may include web pages,images,videos or other piece of contents...

HYperlinks also present in the resources...Which help users to easily and quickly navigate their browsers to the related resources... 


Although web browsers are mainly intended to  use the world wide web,they can also  be used to access  information provided by web servers  in private networks or the files in file  system...

EXAMPLES OF BOWSERS:

• IE (INTERNET EXPLORER) BROWSER

                                              ------(FOR WINDOWS PC)

•  
• CHROME (GOOGLE CHROME) BROWSER

                             ------(FOR WINDOWS PC)

• 
  
• OPERA MINI BROWSER

                   ----(BOTH FOR PC AND MOBILE USERS)

• 
  
• SAFARI BROWSER

       ----- (FOR MAC(MACINTOSH)  AND
APPLE IOS(IPHONE OS))

• 
  
• NETSCAPE NAVIGATOR 

                       ---(FOR WINDOWS OLD VERSIONS)

• ECLIPSE BROWSER.

• MOZILLA FIREFOX BROWSER

                ------(FOR UNIX AND LINUX OS)

conclusion:

thus with url having unique address to website.. and  the browser software application  retrive what ever information  required from the world wide web......