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.
在电传打字机上键入几条指令，几秒钟后程序数据处理机即会反馈回信息。
Type in a few instructions on the teletype machine and a few seconds later the PDP would type back its response.
采用编译控制的译码方法，具体分析了译码的数据处理流程，介绍了模态指令处理等相关问题。
The way of compiling control coding is adopted, and coding data process flow is analyzed detailed, while some relevant problems such as modal instrument procession are introduced.
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