operating systems

first of all we need to know "what is opreating system?".

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

* Operating systems are found on many devices that contain a computer – from cellular phones and video game consoles to web servers and supercomputers.

* 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.

For hardware functions such as input and output and memory allocation, the operating system acts as an intermediary between programs and the computer hardware

*The dominant general-purpose[3] desktop operating system is Microsoft Windows with a market share of around 76.45%. macOS by Apple Inc. is in second place (17.72%), and the varieties of Linux are collectively in third place (1.73%).[4] In the mobile sector (including smartphones and tablets), Android's share is up to 72% in the year 2020.[5] According to third quarter 2016 data, Android's share on smartphones is dominant with 87.5 percent with also a growth rate of 10.3 percent per year, followed by Apple's iOS with 12.1 percent with per year decrease in market share of 5.2 percent, while other operating systems amount to just 0.3 percent.[6]Linux distributions are dominant in the server and supercomputing sectors. Other specialized classes of operating systems (special-purpose operating systems),[3][7] such as embedded and real-time systems, exist for many applications. Security-focused operating systems also exist. Some operating systems have low system requirements (e.g. light-weight Linux distribution). Others may have higher system requirements.

Now, we that ,how many types of OS (opreating system).

• 1Types of operating systems

  • 1.Single-tasking and multi-tasking

  • 2.Single- and multi-user

  • 3.Distributed

  • 4.Templated

  • 5.Embedded

  • 6.Real-time

  • 7.Library

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