What is Operating System OS? Concept and Definition

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Once we turn on the computer and started as per our expectation then we feels everything is in control. But behind this process Operating System plays vital role in handling of all necessary tasks to perform. So it is interesting to know what is operating system OS? Concept and Definition of OS and how OS works and what are the different types of operating system.

Definition of Operating System (OS):

An operating system (OS) is defined as, “it is system software that manages all computer hardware and software resources and provides common services for computer programs.”

According to Peter Baber Galvin, “Operating system is one program running at all times on the computer (usually called the Kernel), with all else being system programs and application programs. “

Concept of Operating System (OS):

OS is a program that can be installed by the user and can be changed.

It is stored on the hard drive

An operating system or OS is a system software program that enables the computer hardware to communicate and operate with the computer software.

It acts as an intermediary between the computer user and the computer hardware.

It is large and complex, it must be created piece by piece. Each of these pieces should be well defined portion of the system, with clearly mentioned input, output and functions.

OS is a low-level software that supports a computer’s basic functions, such as scheduling tasks and controlling peripherals.

Types of Operating System (OS):

1. Single User Operating System

2. Multi-tasking

3. Batch Processing

4. Multi-programming

5. Multi-processing

6. Real Time System

7. Time Sharing

8. Distributed Data Processing

9. Mobile OS etc.

Example Operating System (OS):

1. Microsoft Windows

2. Apple iOS

3. Google’s Android OS

4. Apple Mac OS

5. Linux Operating System etc.

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