摘要
论述了可靠性设计的重要作用及提高系统可靠性的途径和方法。介绍了容错技术的概念和主要研究内容，具体介绍了硬件、软件、时间和信息等资源的冗余方案、特点及对系统可靠度的改善。
The importance of reliability design and the effective way to lmprove system reliability. The concept of fault tolerence technique and main study contents. The characteristics of hardware, software, time and information redundancy scheme by which system reliability were improved.
关键词
可靠性
容错技术
冗余
计算机系统
Fault Reliability Fault tolerence technique Redundancy
