A protocol prefix tells your web browser what type of document is being accessed and which protocol it should use to access that document. The second part of the URL, the domain name, is probably the most important part. This tells your web browser which Internet site the requested data is located on. If a more specific URL is desired, a path and filename must be added. Usually, the file index.html is the main page, or home page, for the specified Internet site.
Graphics can be in the forms of icons, colored lines, backgrounds, or even photographs.
Whether you can expreience the full multimedia effect of the Web depends primarily on your web browser, as well as your computer. Although most web browsers today do allow graphics, people using Shell accounts typically use a browser called Lynx, which does not support graphics. Your ability to download and listen to audio files on the Web depends not only on your Web browser, but also on your computer. Every graphic you will find on the Web is simply an image file that your computer must download from the Internet site hosting the Web page. The image files are usually either GIF's or JPEG's.