Importance and functions of Operating System || Operating System || Bcis

Importance and Functions of Operating System

The following are some of the important functions of an operating System:

Processor management which involves putting the tasks into order and pairing them into manageable size before they go to the CPU.
Memory management coordinates data to and from RAM (random-access memory) and determines the necessity for virtual memory.
Device management which provides an interface between connected devices.
Storage management which directs permanent data storage.
Application which allows standard communication between software and your computer.
User interface which allows you to communicate with your computer.
It provides file management which refers to the way that the operating system manipulates, stores, retrieves and saves data.
Error Handling is done by the operating system. It takes preventive measures whenever required to avoid errors.
Security − By means of password and similar other techniques, it prevents unauthorized access to programs and data.
Control over system performance − Recording delays between the request for a service and response from the system.
Coordination between other software and users − Coordination and assignment of compilers, interpreters, assemblers and other software to the various users of the computer systems.

Importance

Following are the need and importance of an operating system

The operating system behaves like a resource manager. It utilizes the computer in a cost-effective manner.
It schedules jobs according to their priority passing control from one program to the next.
The overall function of job control is especially important where there are several users.
The operating system makes a communication link between the user and the system.
It helps the user to run application programs properly and get the required output.
Operating system has the ability to fetch the programs in the memory when required and not all the operating system to be loaded in the memory at the same time.
The operating system helps the user in file management, making directions, and saving files in them.
Multiprogramming is a very important feature of operating system.