Introduction - If you have any usage issues, please Google them yourself
(1) to allow multiple users to log on, for each user establish a process or thread, and process management (2) to allocate memory for the process simulation and design of a follow-up simulation of the memory allocation process or thread, recording the results of memory allocation (3) can simulate the file system management, the process can file system (including files and directories) to read, write, create, delete, open, closed and other operations (4) can simulate the process of communication management, the user communication between each other (5) be much better to use a window similar to Windows interface