该书作者从事计算机设计、研究、教学和应用开发工作三十余年，在多年来讲授“计算机原理与系统结构”、“数字逻辑”、“微机原理与接口技术”、“计算机网络”等课程教学材料基础上，集以上各门课程的精华进行精炼加工写成此书。作者曾提出“计算机认知方法论”（见本刊1998 The book author engaged in computer design, research, teaching and application development work for more than 30 years, teaching “computer theory and system architecture”, “digital logic”, “microcomputer principle and interface technology”, “computer network” and other courses On the basis of teaching materials, set the essence of the above courses for the refining process written into this book. The author has put forward “Computer Cognitive Methodology” (see this issue 1998)