说明：  主存储器空间的分配和回收。 在可变分区管理方式下，采用最先适应算法实现主存空间的分配和回收。 计算机系统不仅要有足够容量、存储速度高、稳定可靠的主存储器，而且要能合理的分配和使用者且存储空间。主存的分配和回收的实现是与主存储器的管理方式有关的。本实验有助于了解在不同的存储管理方式下，应怎样实现主存空间的分配和回收。
(Main memory space allocation and recovery. Variable partition management mode, using the first algorithm to adapt to the distribution of main memory space and recycling. Computer system must not only have sufficient capacity, storage, high-speed, stable and reliable main memory, but also to ensuring a reasonable allocation and users and storage space. Main memory allocation and recovery with the main memory to achieve the management-related. This experiment will help to understand the storage management in different ways, how to achieve the main memory space allocation and recovery.)