服务器程序。它是网络上一种为客户端计算机提供各种服务的高性能的计算机，它在网络操作系统的控制下，将与其相连的硬盘、磁带、打印机、Modem及各种专用通讯设备提供给网络上的客户站点共享，也能为网络用户提供集中计算、信息发表及数据管理等服务。-It is a network to provide various services for the client computer of high performance computer, it is in the control of network operating system, will be connected with the hard disk, tape, printer, Modem and all kinds of special communication equipment available to clients on the network sharing site, can also provide a centralized computing, information publishing and data management service for network users.