What Is a System Software in Computer?

Irene Olsen

A computer system is a complex machine that requires various types of software to function. One of the essential types of software that runs on a computer is system software. In this article, we will discuss what is system software in computer and its importance.

What is System Software?

System software refers to the collection of programs that manage and control the operation of a computer system. It acts as an interface between the hardware and application software, allowing them to communicate and interact with each other.

System software includes various components such as operating systems, device drivers, firmware, utilities, and security software. Each component plays a critical role in ensuring the efficient and secure operation of the computer system.

Types of System Software

1. Operating Systems: The most crucial component of system software is an operating system (OS). It manages all the resources of a computer like memory, storage devices, input/output devices, etc., and provides a platform for other applications to run.

2. Device Drivers: These are small programs that enable communication between hardware devices and the operating system. Without device drivers, hardware components like printers or scanners would not function correctly.

3. Firmware: Firmware refers to low-level programs installed on hardware components like motherboards or hard drives. It controls the basic operations of these components.

4. Utilities: Utilities are small programs that perform specific tasks such as cleaning up disk space or removing viruses from a computer.

5. Security Software: Security software protects the computer from malware attacks by detecting and removing viruses or other malicious programs.

Importance of System Software

The importance of system software can be summarized as follows:

1. Provides an interface between hardware devices and application software. Manages resources efficiently, optimizing performance. Enables different applications to run simultaneously without interfering with each other’s operations. Ensures security by protecting against malware attacks. Provides updates and patches to fix bugs and vulnerabilities in the operating system.


In conclusion, system software is an essential component of a computer system. It manages and controls the operation of hardware devices and enables different applications to run efficiently. Without system software, a computer would not function correctly, making it an integral part of the computing experience.