These provide physical access to memory devices, and are not used directly.
这些模块提供对内存设备的物理访问，但并不直接使用它们。
It is physical memory that is the key to fast access.
物理内存是加快访问的关键。
Every computer has a processor and some random-access memory (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。
Every computer has a processor and some random-access memory (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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