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Functions of Operating System

Following are some of important functions of an operating System

1) Memory Management

Memory management refers to management of Primary Memory or Main Memory. Main memory is a large array of words or bytes where each word or byte has its own address. Main memory provides a fast storage that can be access directly by the CPU. So for a program to be executed, it must in the main memory. Operating System does the following activities for memory management.

2) Processor Management

In multiprogramming environment, OS decides which process gets the processor when and how much time. This function is called process scheduling. Operating System does the following activities for processor management.

3) Device Management

OS manages device communication via their respective drivers. Operating System does the following activities for device management.

4)File Management

A file system is normally organized into directories for easy navigation and usage. These directories may contain files and other directions. Operating System does the following activities for file management.

5)Other Important Activities

Following are some of the important activities that Operating System does.

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