Computer operating system, computer operating system pdf

Computer operating system, computer operating system pdf
Operating System (OS) is a computer program that manages and controls computer hardware and software resources. It is the most basic System software that runs directly on bare metal, any other software must be supported by the operating system. The operating system is the interface between users and computers, and also the interface between computer hardware and other software. The operating system functions include managing hardware, software, and data resources of the computer system, controlling program running, improving man-machine interfaces, and providing support for other application software, so that all resources of the computer system can play a maximum role, provides various forms of user interfaces so that users can have a good working environment and provide necessary services and corresponding interfaces for the development of other software. In fact, users do not need to access the operating system. The operating system manages computer hardware resources and allocates resources according to Application resource requests, such as dividing CPU time and opening up memory space, call the printer. Location of the operating system: the operating system is a software between the computer hardware and software. It manages hardware resources based on the kernel state and provides corresponding interfaces for the user program based on the user State. i. The role of the operating system is mainly reflected in two aspects: 1. hardware physical features and operation details are shielded to facilitate the use of computers.