What is system software ? What role does it play in the functioning of the computer ?

The software that controls internal computer operations such as reading data from input devices, transmitting processed information to the output devices, checking system components, converting data/instructions to computer understandable form etc., is called System Software.

The system software can further be classified into two categories:

1. Operating System — It is a program which acts as an interface between a user and the hardware. For example, Microsoft Windows 10.
2. Language Processor — It is a special type of a computer software that can translate the source code into an object code or machine code. For example, interpreter and compiler.