这是从维基百科上找的英文词条：An operating system (OS) is a collection of software that manages computer hardware resources and provides common services for computer programs. The operating system is an essential component of the system software in a computer system. Application programs usually require an operating system to function.如果需要具体的自己去看，或者其实可以找本英文的操作系统书来抄（电子版还可以CV）
温馨提示：答案为网友推荐，仅供参考