Operating System (OS) is a computer program that manages and controls computer hardware and software resources. It is the most basic system software running directly on the "bare machine". Any other software must be supported by the operating system to run.

The operating system is the interface between the user and the computer, as well as the interface between the computer hardware and other software. The functions of the operating system include managing the hardware, software and data resources of the computer system, controlling the operation of the program, improving the man-machine interface, providing support for other application software, making all the resources of the computer system work to the maximum extent, providing various forms of user interface, and providing users with a good working environment. Provide necessary services and corresponding interfaces for the development of other software. In fact, users do not have to touch the operating system, which manages computer hardware resources and allocates resources according to the application's resource requests.

1.Shielding hardware physical characteristics and operation details, provides users with the convenience of using computers.

2.Effective management of system resources to improve system resource utilization efficiency