指令和数据在计算机的内存中一时用不到的话，就要用辅助存储单元来对它们进行保存。
Auxiliary storage units are used to store instructions and date when they are not being used in main memory of the computer.
在具有微程序控制的指令集的微型计算机中，它包含另外的控制存储单元。
In a microcomputer with a microprogrammed instruction set, it contains an additional control-memory unit.
大多数指令有一个或多个操作数，赋予具体源值以备执行操作以及目标存储单元显示结果参考。
Most instructions have one or more operands, specifying the source values to references in performing an operation and the destination location into which to place result.
辅助存储单元也称为第二存储单元，用来存储处理器单元当前没有使用的指令和数据。
Auxiliary storage, also called Secondary storage, stores instruction and data when they are not being used by the processor unit.
若俘获状态触发器处于置位状态时，程序停在即将执行而尚未执行的下一条指令上，该指令是从存储单元n中取出来的。
If the trapping mode flip-flop is set and the program includes any one of certain instructions, the instruction is not performed but the next instruction is taken from location n.
若俘获状态触发器处于置位状态时，程序停在即将执行而尚未执行的下一条指令上，该指令是从存储单元n中取出来的。
If the trapping mode flip-flop is set and the program includes any one of certain instructions, the instruction is not performed but the next instruction is taken from location n.
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