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Operating system

* operating system
 Operating system is a system software. Which is used to operate a computer. It provide a interface between user and machine.its may enable to computer hardware. In other word we can say that its interact with computer hardware and some software. Its provide a platform to implement another software. So it is called system software. On the basis of user site operating system divided into three types
* single user single tasking
* single user multi tasking
* multi user multi tasking
 Single user single tasking_-
In this type of operating system a single user can create a single task in a same time..it is only design for using personal computer..
Ex- dos.

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