Web browsers, often referred to just as browsers, are software applications used to locate and display Web pages on the World Wide Web. While this is the most popular usage, browsers can also be used to access and view content on a private or local network as well. Most, but not all browsers are graphical browsers, which means that they can display graphics as well as text. In addition, most modern browsers can present multimedia information, including sound and video, though they require plug-ins for some formats.
Web browser is actually a software application that runs on your Internet-connected computer. It allows you to view Web pages, as well as use other content and technologies such as video, graphics files, and digital certificates, to name a few. Some browsers will translate only text while others do support graphics and animation. Web browsers are not all created equal, and Web pages also will not be displayed the same in different browsers.
All About Web Browsers
By Vangie Beal, March 06, 2009