Description: (1) variable partitioning method is based on the size of main memory space required to split the job partition. When you want to load a job, according to the operating needs of main memory to see if there is enough free space, and if so, according to need, otherwise, the job can not be loaded. Memory size is assumed to 128K, free zone description table format:
• Starting Address- indicate the start address free zone
• Length- the length of a continuous free area
• Status- There are two states, one is "unassigned" state another "empty entry" status, which means that there is no use in front of the menu item.
(2) using the first-fit algorithm reclaim allocated memory space. Run, enter a series of allocation requests and recovery requests. Space required to accept the application and release request from the keyboard can display memory layout of the recovery partition and after.
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