<Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (March 2009) (Learn how and when to remove this template message) </Td> </Tr> <P> Web server refers to server software, or hardware dedicated to running said software, that can serve contents to the World Wide Web . A web server processes incoming network requests over the HTTP protocol (and several other related protocols). </P> <P> 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 Hypertext Transfer Protocol (HTTP). Pages delivered are most frequently HTML documents, which may include images, style sheets and scripts in addition to the text content . </P> <P> A user agent, commonly a web browser or web crawler, initiates communication by making a request for a specific resource using HTTP and the server responds with the content of that resource or an error message if unable to do so . The resource is typically a real file on the server's secondary storage, but this is not necessarily the case and depends on how the web server is implemented . </P>

What is the role of the web server