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由于技术、经济和政治等原因,分布系统正在更加广泛的使用。这些系统由通信子网(CS)互连的若干个计算机组成,以便获得常驻系统中处理之间的协作。因此,我们在分布系统的设计中能够区分两种主要的设备关系:第一包括把带有适当有关软件的通信子网与计算机相连,以便获得系统中有效信息的传输;第二包括为了获得常驻系统中处理之间的协作所使用的软件包。用于分布系统重要的结构是ISO提议的OSI(开放系统互连)模式。这种结构由七层组成:
Due to technical, economic and political reasons, distribution systems are being used more widely. These systems consist of several computers interconnected by a communications subnet (CS) in order to obtain collaboration between processes in the resident system. Therefore, we can distinguish two main types of device relationships in the design of a distributed system: the first involves connecting a communications subnet with the appropriate software to the computer in order to get the transmission of valid information in the system; the second involves including The software packages used to handle the collaboration between systems. The important structure for distributing the system is the OSI (Open Systems Interconnection) mode proposed by the ISO. This structure consists of seven layers: