本书向读者介绍了分布式系统特有的有关设计方面的一些内容。本书着重于设计的软件部分，因为大部分相应的硬件部分在许多有关计算机网络和并行计算机的教科书中都已得到很好的介绍。这本书中的所有高级设计和算法都使用建议的类CSP分布式控制描述语言（DCDL）表示（CSP代表通信顺序进程）。虽然这本书不可能覆盖分布式计算系统的所有问题，但我们的目标在于给出有关每个涉及到的问题的基本方面。-This book introduces readers to the unique distributed system, some of the elements of the design aspects. This book focuses on the design of software components, because most of the hardware part in many of the computer networks and parallel computers have been a very good textbook introduction. In this book all the advanced design and algorithms use the proposed class of CSP Distributed Control Descr iption Language (DCDL) said (CSP on behalf of Communicating Sequential Process). Although this book can not cover all the problems of distributed computing systems, but our goal is to give information about each related to fundamental aspects of the problem.