In this post functions of operating system are define. Firstly understand the what is operating system.
Operating System is an important component of the computer system and it can be defined as a set of programs that control how the system works. Operating system is the program that runs on a computer. The operating system Is backbone of a computer, managing both software and hardware resources. All computers must have an operating system used for starting the computer and to run other programs. It provides an interface between the users and the hardware of a computer system.
Operating system perform basic tasks, such as recognizing input from the keyboard, sending output to the display screen, keeping track of files and directories on the disk, and controlling peripheral devices such as disk drives and printers.
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Functions of the Operating System
It also allows you to communicate with the computer without knowing how to speak the computer language and once the operating system has started up, it manages all of the software and hardware on the computer. In system most of the time, many different programs are running at the same time and they all need to access your computer's central processing unit, memory, and storage. It coordinates all of this to make sure that each program gets what it needs.
The functions of operating system are the following:-
- Interface
- Process Management
- Memory Management
- Input/Output Management
- File Management
- Establishment Of a Priority System
- Interpretation
- Assignment Of Software Programs
- Establishment of Data Security and Data Integrity
- Automatic Transition
- Error Handling
- Easy Communication
Interface
It works as an interface between computer hardware and software
Process Management
Process Management is the assignment of the processor to different tasks being performed by the computer system.
Memory Management
Memory Management is the allocation of main memory and other storage areas to the system programs as well as user programs.
Input/Output Management
They are also help for assignment of the different input/output devices to one or more programs, while they are being executed.
File Management
The file management function help for creation of a new file, modification in an existing file, copying/moving a file from one storage location to another.
Establishment of a priority system
Which is used to determines and maintains the order in which jobs are to be executed in the computer system.
Interpretation
Interpretation of commands or instructions.
Assignment of software programs
Assignment of software programs to different computer user according to their demand.
Establishment of data security and data integrity
This function gel us that unauthorized users does not access the system.
Automatic transaction
Automatic transaction from job to job as directed by special control statements.
Error handling
During program loading or executions, errors may occur in computers hardware or memory. The operating system detects auch error and takes appropriate action to ensure correct and consistent computing.
Easy communication
Operating system facilities easy communication between the computer system and the computer user.
The above are some important functions of a operating system and operating system for large systems the operating system has even greater responsibilities and powers. It is responsible for security ensuring that unauthorized users do not access the system. The operating system is loaded automatically into the computer whenever we start the computer. More than one type of operating system can also be installed on one computer but at one time only one operating system will be functional.
Some examples are
- Windows Vista
- Windows XP
- MS-DOS
- OS/2
- Unix
- Windows 98
Conclusion:- In this post I will try to cover functions of Operating System. I hope you have learned reading to this post. If you like this post then share with your friends and you can comment any of your doubts and i will replay then at the earliest.
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