FUNCTIONS OF OPERATING SYSTEM

  FUNCTIONS OF OPERATING SYSTEM

Important functions of an operating system are:

1. Security: the operating system uses password protection to protect user data and similar other techniques. It also prevents unauthorized access to programs and user data.

2. Control over system performance: monitors overall system health to help improve performance, records the response time between service requests and system response to having a complete view of the system health.

3. Job accounting: operating system keeps track of time and resources used by various tasks and users, this information can be used to track resources usage for a particular user or group of users.

4. Error detecting data: the operating system constantly monitors the system to detect errors and avoid the malfunctioning of a computer system.

5. Coordination between other software and users: operating system also coordinate and interpreters, compilers, assemblers, and other software to the various users of the computer systems.

6. Memory management: the operating system manages the primary memory or main memory. Main memory is made up of a large array of bytes or words where each byte or word is assigned a certain address.

7. Processor management: in a multi-programming environment, the OS decides the order in which processes have access to the processor, and how much processing time each process has. This function of OS is called process scheduling.

8. Device management: an OS manages device communication via their respective drivers.

9. File management: a file system is organized into directories for efficient or easy navigation and usage.