Arithmetic unit: arithmetic unit is a data processing unit that consists of arithmetic logic unit (ALU), accumulator, data buffer, ect.

运算器：运算器是数据加工处理部件，它是由算术逻辑单元(alu)、累加器、数据缓冲器等组成。

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Thee Arithmetic-Logic Unit——The arithmetic-logic unit, usually called the ALU, performs twotypes of operations—arithmetic and logical.

算术-逻辑单元算术-逻辑单元，通常被称为ALU，完成两类运箅一算术和逻辑。

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