A Web browser is a software application which enables you to access and view information on the World Wide Web. Web pages are written in a language called HTML (for more information about HTML, refer to the topic HTML -- the Language of the Internet). The Web browser interprets (or "parses") the HTML, and displays the Web page that you see. With a Web browser, you can navigate from Web page to Web page ("browsing" or "surfing" the Internet). The two most popular Web browsers today are Microsoft Internet Explorer and Netscape Navigator.
Both of these browsers are available for free from their respective Web sites (www.microsoft.com and www.netscape.com).