Answer:
OS is an example of System Software.
Let me clarify at a basic level, For an application to work on a system , It needs
Embedded Software (codes Dumped inside hardware)
System Software
Application Software (Obviously as that is what you see on screen and work with)
The work users wish to do with the system is done by the processor/CPU.
But, Processors know only machine language instructions.
System software is the one which gets to know what the user wants to do from the Application software and conveys,manages the processor/other hardware of what needs to be done.
There are numerous examples of System Software each having functions of its own. It can be BIOS,Assembler,Compilers,kernel,other utilities.
Kernel+OS utilities= Operating System
Step-by-step explanation: