除了执行其指令之外，进程有时还会管理打开文件、处理器上下文、地址空间以及与程序相关的数据等。
Apart from executing its instructions, a process might be engaged in managing open files, processor context, address space, and data related to the program, among other things.
这个语言指令告诉计算机：在内存中，为那个被程序员命名为X的变量寻找一个地址，并把数值2存储进去。
The language instruction tells the computer to find a place in its memory, which the programmer wants to call X and to put 2 in there.
每次为程序指令或数据处理内存位置时，都需要将虚拟地址转换成物理(或实际)内存地址。
Every time a memory location is addressed for program instructions or data, a virtual address is translated into a physical or real memory address.
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