本文提出了用于微机系统故障~*诊断的新方法——动态模拟法。该方法简单而易于实现。我们将该方法和“特征码分析”法相结合,实现了微机系统故障定位。文中还介绍了我们采用的一种检测电路结点的信息流的独特方法,介绍了一个“假想的被测微机系统信息流模型”以及故障追踪定位算法。应用上述技术研制出了“便携式微机系统故障诊断仪”~(**)。 This paper presents a new method for computer system fault diagnosis * - dynamic simulation method. The method is simple and easy to implement. We combine this method with the “signature analysis” method to realize the computer system fault location. The article also introduces a unique method we use to detect the flow of information in circuit nodes, and introduces an “imaginary measured information flow model of microcomputer system” and fault location algorithm. Application of the above technology developed a “portable computer fault diagnostic system” ~ (**).