Function of Operating system

System is a collection of programs which control the overall functions of which control the overall functions of computer.

An operating system is a program that acts as an interface between the user of a computer and the computer hardware. The purpose of operating system is to provide an environment in which a user can execute programs in a efficient manner. Operating system also acts as a platform on which various application programs such as word processor and excel are executed.

1. Functions of Operating System

2. INTRODUCTION System is a collection of programs which control the overall functions of which control the overall functions of computer. An operating system is a program that acts as an interface between the user of a computer and the computer hardware. The purpose of operating system is to provide an environment in which a user can execute programs in a efficient manner. Operating system also acts as a platform on which various application programs such as word processor and excel are executed.

3. Functions of operating System:- Process Management . Resource Management. File Management. Communication Management. Security Management. Memory Management . Device Controlling.

4. Process Management All process from start to shut down. Open , Save, Install, Copy, Print. CPU can perform one task at one time. if there are many tasks, operating system decides which task should get the CPU.

5. Resource Management Installing drivers required for input, communication output, memory, power, communication devices.

6. File Management Name Folders . Location . Attributes – size, type, modified, protection, password etc.

7. Communication Management. Downloading-Uploading . One computer to other computer in One computer to other computer in LAN/WAN.

8. Security Management. Virus management. Alert messages. Dialogue boxes. Firewall . Passwords ./ Access protection

9. Memory Management It is also an important function of operating system. The memory cannot be managed without operating system. If there is no operating system, the programs may mix with each other . The system will not work properly . Primary RAM-ROM. Secondary – Hard Disc, CD, DVD, Pen Drive etc .

10. Device Controlling Operating system also controls all devices attached to computer. The hardware devices are controlled with the help of small software called device drivers .

11. THANK YOU