All the windows (7, 8, 10 etc.) are out thereandforuse. Others are Mac OS for the Apple fanboys (ha ha) and of course Linux which is great, but notforeveryone. Just a certaingroup of people.
An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs. The operating system is a component of the system software in a computer system. Application programs usually require an operating system to function.
That in a nutshell. Now you have Android and Mobile OS, both are for Android smartphone or the expensive Apple iPhones.
Coming up next: in depth What happened to the Windows phone. What will be the future of Windows.Future trending from Microsoft and more.
So.. stay tuned!