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What is operating system ?

Operating System : Operating system is a program that act as an interface between user of computer and computer hardware.

Some operating systems.


 1.Windows : Windows, is a metafamily of graphical operating systems developed, marketed, and sold by Microsoft. It consists of several families of operating systems, each of which cater to a certain sector of the computing industry with the OS typically associated with IBM PC compatible architecture.



 2.Macintosh : macintosh operating systems developed by Apple Inc. includes the graphical user interface-based operating systems it has designed for use with its Macintosh series of personal computers since 1984, as well as the related system software it once created for compatible third-party systems.



3.Unix : Unix is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, developed starting in the 1970s at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others.


4.Linux : Linux is a Unix-like computer operating system assembled under the model of free and open-source software development and distribution.






5.Ubantu : Ubuntu is an open source operating system software for computers. It is one of the distribution systems of Linux, and is based on the Debian architecture.

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