说明：  加深对于操作系统设备管理技术的了解，体验磁盘移臂调度算法的重要性；掌握 几种重要的磁盘移臂调度算法，练习模拟算法的编程技巧，锻炼研究分析试验数 据的能力。
(Deepen the understanding of the operating system device management technology and experience transfer disk arm scheduling algorithm importance master disk transfer arm of several important scheduling, training simulation algorithm programming techniques, exercise test data analysis capability.)