What is it?
Web servers are computers that deliver Web pages. Every Web server has an IP address and possibly a domain name. Any computer can be turned into a Web server by installing server software and connecting the machine to the Internet. There are many Web server software applications, including public domain software and commercial package.
What is it used for?
The primary function of a web server is to store, process and deliver web pages to clients. The communication between client and server takes place using the HTTP Pages delivered are most frequently HTML documents, which may include images, style sheets and scripts in addition to text content