计算机指令系统 meaning in English

computer instruction set
repertoire of computer
repertoire of computor

Programming languages are divided into three types : machine language , which is also called an instruction system , is the only one used directly by computers
程序设计语言分为机器语言、汇编语言和高级语言三类。机器语言是计算机唯一能直接使用的语言，也叫做计算机指令系统；
At last they finished the compatible mcu core . this paper generally introduces the development of computer instruction system and then further analyzes the mcu architecture and its pipline characterization . then this paper illustrates the principle and design of every module and explains the operation of every instuction by analyzing the behavior of alu
本文先简要介绍了计算机指令系统的发展，然后深入分析了微控制器的组成架构以及指令的两级流水，接着详细论述了的各个功能模块的工作原理和电路的设计考虑，通过算术逻辑单元alu的深入分析来探究了每条指令在mcu中执行情况。