先来先服务算法（FCFS），短作业算法（SJF），高响应比算法（HRN）和高优先权优先算法是作业调度总经常采用的，通过上述算法的模拟加深对作业控制块JCB的理解和作业调度过程的实现技巧。-First-come first-serve algorithm (FCFS), a short operating algorithm (SJF), a high response ratio algorithm (HRN) and high-priority priority scheduling algorithm is often used in total, through the above-mentioned algorithm for better understanding of the operation of the analog control block understanding JCB and the realization of the process of job scheduling techniques.