en.wikipedia.org/wiki/Operating_system

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

en.wikipedia.org/wiki/List_of_operating_systems

Domain/OS – One of the first network-based systems. Run on Apollo/Domain hardware. Later bought by Hewlett-Packard.

edu.gcfglobal.org/en/computerbasics/understanding-operating-systems/1

An operating system is the most important software that runs on a computer. It manages the computer's memory and processes, as well as all of its software and  ...

smallbusiness.chron.com/five-common-operating-systems-28217.html

Whether it's a desktop or laptop computer, a smartphone or a video game system, every modern computer needs an operating system. That's the core software ...

www.tutorialspoint.com/computer_fundamentals/computer_operating_system

Computer Operating System - Learn computer fundamental concepts in simple and easy steps starting from Overview, Applications, Generations, Types, ...

www.howtogeek.com/361572/what-is-an-operating-system

Aug 8, 2018 ... An operating system is the primary software that manages all the hardware and other software on a computer. The operating system, also ...

www.howtogeek.com/190217/10-alternative-pc-operating-systems-you-can-install

Jul 29, 2016 ... However, SteamOS is being positioned as a new PC gaming operating system. The old Linux desktop is there underneath, but the computer ...

www.computerhope.com/os.htm

Jan 24, 2018 ... Computer operating system help and information with links to all the major computer operating systems including all versions of Windows, ...

www.lifewire.com/operating-systems-2625912

Feb 8, 2019 ... An operating system is computer software that manages hardware and other software. Some operating system examples include Windows, ...