With a VM system, you have two primary areas that store information about the active applications and the data it USES — the physical randomaccessmemory (RAM) and space allocated on hard drives.
Every computer has a processor and some random-accessmemory (RAM), also known as physical memory.
每台计算机都有一个处理器和一些随机存取存储器(RAM),后者也称为物理内存。
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Paging space, or swap space, is a type of logical volume that serves as a staging area for processes that are not using active random-accessmemory (RAM).