In a computer, a functional unit that interprets and executes instructions. Note: A processor consists of at least an instruction control unit and an arithmetic and logic unit. 计算机中，解释并执行指令的一种功能单元。注：处理器至少包含有一个指令控制器和一个算术与逻辑运算器。
A procedure in which an instruction is broken down into the microcode operations necessary for its execution by a control unit. 一种处理过程，其间由控制器将一条指令分解成为它的执行所必须的微码操作。
