If this is still confusing, it may help to think of a Web page as a library reference book and the URL as the instructions on how to get to the library and find the book. The server resides within a specific domain, just like the library is located in a specific city. In addition to links to other pages with related information, Web pages can contain embedded objects and links which launch other Internet services. A page can link to an FTP server to enable the user to download software and data files. A link in a page can allow e-mail to be sent to the webmaster or key individuals at the organization responsible for the site.
Embedded objects can include sound, video and animated graphics.
A page can contain small programs called applets, written in a language called Java, which are designed to run on any computer, regardless of chip set or operating system. A Web page can also be set up as a form to allow users to query a database. A browser is a program that interprets the HTML instructions contained in a Web page and displays the information to the user. The most common browsers are Netscape's Navigator and Microsoft's Internet Explorer . Netscape and Microsoft have also included in their browsers the ability to support proprietary extensions to the HTML standard.