说明：  将操作系统的四个实验进行合成，组成界面，用于实现操作系统的四大功能的模拟，分别进行进程管理、处理机调度-作业调度、存储管理-页面调度以及设备管理-磁盘调度
(The four experiments operating system synthesis, composition interface, the operating system used to implement the four functions of the simulation, respectively, process management, processor scheduling- job scheduling, storage management- paging and device management- Disk Scheduling)