Server Is a computer system that provides certain types of services (services) in a computer network. The server is supported by a processor that is scalable and has a large RAM, also equipped with a special operating system, which is called the network operating system (network operating system). Servers also run administrative software that controls access to the network and the resources contained in it, such as files or printers. and provide access to network member workstations.

The server is divided into several types according to its function, the following types of servers

1. Application Server (Application server)
2. Data Server (Data Server)
3. Proxy Server.

The main task of the server is to serve the client computer, and is divided into several functions according to the type of server,