HTTP is one of several network protocols the common Web browser uses. When a Web browser requests a page, it makes this request in the form of a Uniform Resource Locator (URL). This URL contains important information about the resource being requested, using the following syntax.
<protocol>://<server name>[:<port number>]/<location>
The protocol requested can be one of many different protocols, but most commonly is either HTTP, ftp for file transfer protocol, or file for a file on the local machine. Table 27-2 provides a more complete list of protocols that most browsers will accept.
|http://||World Wide Web server|
|ftp://||FTP server (file transfer)|
|news://||Usenet newsgroups ...|