1、　　题目的要求是通过磁盘调度算法的模拟设计，了解磁盘调度的特点，其主要任务是模拟实现FCFS、SSTF、SCAN、C-SCAN算法，并计算及比较磁头移动道数。-1, the subject request is simulated through the disk scheduling algorithm designed to understand the characteristics of disk scheduling, to achieve its main task is to simulate FCFS, SSTF, SCAN, C-SCAN algorithm, and calculate and compare the head movement and channel number.