why do we need an operating system
Answers
An operating system is the most important software that runs on a computer. It manages the computer's memory and processes, as well as all of its software and hardware. It also allows you to communicate with the computer without knowing how to speak the computer's language.
that's why we need operarating system
Imagine you run a computer without Operating System. Let's say you need to visit a website, or you want to play a song. You will need to perform number of operations and execute number of instructions by yourself to do the above mentioned work. It will consume too much time may be hours or days or months too as you will need to figure out what actually is to be done to do it then you will perform those tasks.
What the operating system does is basically it performs those number of complicated repetitive operations that needs to be performed in background without our intervention thus reduces the hectic tasks and provides us a beautiful interface through which we can interact with the hardware.
Thus in simple terms Operating System provides an easy to use interface and manages all the communication between hardware thus making Computer user friendly.