1. 模拟操作系统的主存分配，运用可变分区的存储管理算法设计主存分配和回收程序，并不实际启动装入作业。

2. 采用最先适应法、最佳适应法、最坏适应法分配主存空间。

3. 当一个新作业要求装入主存时，必须查空闲区表，从中找出一个足够大的空闲区。若找到的空闲区大于作业需要量，这是应把它分成二部分，一部分为占用区，加一部分又成为一个空闲区。

4. 当一个作业撤离时，归还的区域如果与其他空闲区相邻，则应合并成一个较大的空闲区，登在空闲区表中。

5. 运行所设计的程序，输出有关数据结构表项的变化和内存的当前状态。

-A simulated operating system s main memory allocation, the use of variable storage management algorithm design partitioning main memory allocation and recovery procedures, does not actually start loading operations.

(2) using the first method to adapt to best adapt to the law, the worst adaptation of main memory space allocation method.

3 When a new job requirements into the main memory, you must check the free zone table, to find a large enough spare area. If you find the free zone is greater than the job requirements, which is to be divided it into two parts, one for the occupied area, plus a free zone has become a part of.

4 When a job to evacuate the area if returned free zone adjacent to the other, should be merged into a larger free zone, free zone registered in the table.

5 is designed to run a program, the current state of the output data structure entries changes and memory.