- Software controlling the overall operation of a multipurpose computer system, including such tasks as memory allocation, input and output distribution, interrupt processing, and job scheduling.
- is an interface between hardware and software in a computer system. The OS is responsible for the management and coordination of activities and the sharing of the limited resources of the computer.
- System that consists of several programs that help the computer manage its own resources, such as manipulating files, running programs and controlling the keyboard and screen.
