Internet 


                      
How WWW works?
WWW means world wide web It consists of large number of websites that contains a number of webpages maintained by various web servers around the world.The WWW works on a client server approach whenever a user wants to retrieve a webpage the WWW work as follows:
                                 

 1.A user enters the url of the webpage in the address bar of  the webpage browser.

 2.The web browser requests the domain name server for the Ip address corresponding to www.yahoo.com.

 3.After receiving the Ip address your browser sends the request for the webpage to the internet using HTTP protocol which specifies the way the browser and web server communicates the internet router sends the request to the intended web server.

 4.then the web server receives the request using HTTP protocol it then examines its hard disk or memory and if the requested file is found it returns it back to the web browser and closes the HTTP connection.

 5.The web browser then interprets the file and displays the contents of the webpages in the browser window.