A resource management and provides services for users of computer software, usually divided into file server (enables users in other computer access files), database server and application server. The implementation of the above software of computer.


Sometimes, these two kinds of definition will cause confusion, such as Web server. It is possible to refer to the computer for the site, may also refer to the software such as Apache, to perform in such computer to manage Webpage element Webpage browser request and response.

Server as hardware, usually refers to those with high computing capability, can provide more than one user computer. Different servers and PC machine too much, such as PC in a moment usually only a user service. The server and the host is different, the host is through the terminal to the user, the server through the network to the user end user.

According to different computing power, server and divided into working group level server, departmental server and enterprise class server. Server operating system refers to the implementation of operating system on the server hardware. Server operating system needs to manage and make full use of the computing capacity of the server hardware and provide the server hardware software.

Now, there are many as a platform for server operating system market. Unix like operating system, as is the offspring of Unix, mostly have better as the server platform function. The Unix server class operating systems often have AIX, HP-UX, IRIX, Linux, FreeBSD, Solaris, Mac OS X Server, OpenBSD, NetBSD, and SCO OpenServer. Microsoft also published Microsoft Windows server version, like the early Windows NT Server, Windows Server and Windows modern 2000 Server 2003. But the latest version of Windows Server 2008 has already appeared.

Server software
As previously mentioned definition of server software, server software in the user terminal server or browser – server mode, there are many types of servers, including commonly used.

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