An operating system (OS) is system software that manages computer hardware and software resources, and provides common services for computer programs.

This is a list of operating systems.Computer operating systems can be categorized by technology, ownership, licensing, working state, usage, and by many other characteristics. In practice, many of these groupings may overlap. Criteria for inclusion is notability, as shown either through an existing Wikipedia article or citation to a reliable source.

An operating system (OS) is a kind of computer program that helps a computer to interact with other machines or with people. An OS is not actually one single program but a group of small programs, like file managers, device drivers, and kernels.

This article presents a timeline of events in the history of computer operating systems from 1951 to the current day. For a narrative explaining the overall developments, see the History of operating systems. BSD/386, by BSDi and later known as BSD/OS.

This is a list of operating systems for computers. OPENSTEP NeXTSTEP on Intel x86, HP PA-RISC, and different architectures. OS/2 Windows / MS-DOS compatible operating system made in a Microsoft and IBM project, but later Microsoft stopped when they wanted to work on Windows NT more; which was better than early Windows versions and MS-DOS.

Linux is the leading operating system (OS) on servers such as mainframe computers, and the only OS used on supercomputers [13] (at least on the TOP500 list, since November 2017). It is used by around 2.3% of desktop computers.

2024年12月28日 · An Operating System is essential system software that manages computer resources, provides an interface between hardware and applications, and ensures efficient operation, security, and multitasking capabilities.

2024年12月28日 · An operating system is a type of software that acts as an interface between the user and the hardware. It is responsible for handling various critical functions of the computer and utilizing resources very efficiently so the operating system is also known as a resource manager.

2025年2月15日 · operating system (OS), program that manages a computer ’s resources, especially the allocation of those resources among other programs. Typical resources include the central processing unit (CPU), computer memory, file storage, input/output (I/O) devices, and network connections.

2025年1月31日 · What is an Operating System? An Operating System (OS) is essential software that manages hardware and software resources, enabling interaction between users and the computer while performing critical functions like process and memory management.