Page/Application Server, Host

A Web Server is a computer with special software to host web pages and web applications. Web server's traditional function has been to serve static HTML (and more recently XML) pages. As the Internet has become more functional, i.e. e-commerce and dynamic sites, increasing emphasis is placed on a servers ability to host web applications.
 
Many different servers are in use on the Internet. Some of the more popular ones are:

• Apache Free open source server
• Internet Information Server (IIS) Microsoft's web server included with Windows NT/2000
• Netscape Enterprise Server Popular server runs on NT and UNIX