The server is a computer system that provides a specific kind of service in a computer network. Server powered by a processor that is scalable and large RAM, also equipped with a special operating system, which is referred to as the network operating system or network operating system.Generally, at the top of the server operating system there are applications that use client / server architecture. Examples of these applications are DHCP Server, Mail Server, HTTP Server, FTP Server, DNS Server, and so forth. Each server operating systems generally bundle those services or those services can also be obtained from third parties. Each service will respond to requests from clients. For example, the DHCP client will request to the server running the DHCP server; when a client requires an IP address, the client will give the command / request to the server, the language understood by the DHCP server, the DHCP protocol itself.Examples of server operating system is Windows NT 3.51, followed by Windows NT 4.0. Currently the system is quite popular is Windows 2000 Server and Windows Server 2003, and Sun Solaris, Unix, and GNU / Linux.The server is usually connected to the client with UTP cable and a network card. This network card is usually a PCI or ISA card.Server function very much, for example for internet sites, science, or simply data storage. However, the most common is to connect a client computer to the Internet.What is the ClientClient computers that are allowed to enter the network and take / use all available resources within the network. Devices that are in the client computer such as memory, processor, not as strong as it is on the server.
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