The Analyzing Of Minix2.0 Operating System

With the booming of Linux-based application, the research on LINUX OS becomes more and more important. However, in terms of the complication of the system design and the amount of source codes, it is very difficult to analyze the whole LINUX OS in such a limited time. As the origin of LINUX OS, based on its small size and more modular design MINIX OS having the kernel functions of LINUX OS is a good alternative of researching LINUX OS.In contrast to the layered structure of MINIX OS, the analyzing of MINIX2.0 OS is based on the layered methods: the subsystem of process management is analyzed first, then the subsystem of device management, then the subsystem of memory management and finally the subsystem of file management. Meanwhile, the analyzing of each subsystem strictly complies with the methods of software engineering, consisting of the analyzing of functions, implementation polices, interfaces, program controls and program flows. Compared with the previous analysis of operating systems, the analysis of MINIX2.0 operating system more emphasizes on the combination of theory and practical. The results of the analysis include not only the design principles and implementation policies of subsystems in MINIX2.0 operating system but also the detailed program flow charts and program control diagrams.The detailed analysis results of MINIX2.0 OS will build a solid foundation not only for the further researching on LINUX OS but also for our school's Linux-base development platform.