内存管理，1、在该实验中，采用可变分区方式完成对存储空间的管理（即存储空间的分配与回收工作）。

2、设计用来记录主存使用情况的数据结构：已分区表和空闲分区表。

3、在设计好的数据结构上设计一个主存分配算法，要求实现的基本功能操作有：寻找空闲分区，空闲分区表的修改，已分区表的修改。

4、在设计好的数据结构上设计一个主存回收算法。其中，若回收的分区有上邻空闲分区和（或）下邻空闲分区，要求合并为一个空闲分区登记在空闲分区表的一个表项里。-Memory management, 1, in the experiment, the variable partition manner of storage space management (ie, storage space allocation and recycling). 2, designed to record the use of main memory data structures: a partitioned table and free partition table. 3, in the design of a good data structure design of main memory allocation algorithms, required to achieve the basic functions of operation are: looking for free partition, free partition table changes, the partition table has been modified. 4, in the design of a good data structure design of main memory recovery algorithm. Which, if the recovery partition with the adjacent free partitions, and (or) o-free partitions, partition requires free registration into a single partition in the free entry in a table.