![]() Security-focused operating systems also exist. Other specialized classes of operating systems (special-purpose operating systems) ), such as embedded and real-time systems, exist for many applications. ![]() Linux distributions are dominant in the server and supercomputing sectors. In the mobile sector, including both smartphones and tablets, Android is dominant with a market share of 71%, followed by Apple's iOS with 28% for smartphones alone, Android has 72% and iOS has 28%. is in second place (15.33%), and the varieties of Linux are collectively in third place (2.91%). Operating systems are found on many devices that contain a computer – from cellular phones and video game consoles to web servers and supercomputers.Īs of January 2023, the dominant general-purpose desktop operating system is Microsoft Windows with a market share of around 74.14%. ![]() ![]() Time-sharing operating systems schedule tasks for efficient use of the system and may also include accounting software for cost allocation of processor time, mass storage, printing, and other resources.įor hardware functions such as input and output and memory allocation, the operating system acts as an intermediary between programs and the computer hardware, although the application code is usually executed directly by the hardware and frequently makes system calls to an OS function or is interrupted by it. An operating system (OS) is system software that manages computer hardware, software resources, and provides common services for computer programs. ![]()
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