Servers:-

                 Servers are computers that hold shared files, programs and the network operating system. Servers provide access to network resources to all the users of the network. A server is a software or hardware device that accepts and responds to requests made over a network. The device that makes the request, and receives a response from the server, is called a client. On the Internet, the term “server” commonly refers to the computer system that receives requests for a web files and sends those files to the client.