What is Operating System (OS)

What is Operating System (OS):-

Operating system is the most importent things of computer, without a operating system computer is nothing. A operating system is the heart of computer. For example we have all a heart in ouer body but we can't see it if we have no heart we can't live a second, similearly a OS or operating system is the main part of computer.

Types Of OS:-

In this world we have five types of  OS Like Windows, Mac, Android, Linux, Solaric, BSD.