Principles of Computer Organization is one of the required courses in the undergraduate course of computer science. It plays an important role in the teaching plan of computer related major. This course introduces the composition and working mechanism of the computer system, including the internal structure, working principle, logic realization, design method and the technology of the computer. This course aims to enable students to master computer hardware subsystem composition principle and realization technology, understand of how program is executed on the computer hardware, establish the overall concept of the computer system, has an important role to cultivate the ability of students to design and development of computer system. To lay a good foundation for the future study of computer network, operating system, computer architecture and other professional courses.