By the time you are reading this article, certainly you are already using a web browser which is presenting this article content in a rich text/graphical format on your computer screen. A web browser or frequently called as browser is an application software that is installed on a computer to provide access to the World Wide Web. I t fetches the web pages from the server along with the necessary files like, images, flashes, videos etc, interprets them and then displays it on the screen. All you have to do is simply type the URL (Uniform Resource Locator) of a webpage in the address bar and the browser will bring the web page on your screen.