What is an Operating System?
An operating system (OS) is simply a system software that handles computer hardware, software resources, and implements standard services for computer programs.
Time-sharing operating systems work on tasks schedule for efficient use of the system and may also involve cost allocation of processor time, mass storage, accounting software, and printing.
Regarding Hardware functions such as output and input and memory allocation, the operating systems serve as an emissary between programs (computer software) and the computer hardware.
However, the application code normally is completed directly by the hardware and regularly makes calls to the system to an OS function or, likewise, is interrupted by it. Operating Systems are known to be found on devices that contain a computer. (cellular phones, supercomputers, video-game consoles, and web servers).
Although The authoritative desktop operating system is Microsoft Window, holding a market share of over 82.74%. macOS by Apple Inc. taking second place with 13.23% and Linux is taking third place with 1.57%. In the mobile, (involving the tablets and smartphone) sector, Google Android’s share hits up to 705 in the year of 2017.
Based on third-quarter 2016 data, The Androids share on smartphones is much more vast and authoritative with an 87.5 percent, with a steady growth of 10.3 percent per year, which is followed up by the Apple iOS with a 12.1 % decrease in market share of 5.2 percent.
Linux distributions are authoritative in the supercomputing and servers category. Technoscientifically category/levels of operating system such as real-time systems, and embedding.