the primary job of the operating system is to manage
Operating system An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs.
Unix Unix (/ˈjuːnɪks/; trademarked as UNIX) is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, development starting in the 1970s at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others.[3]