Question

Explain function of operating system in computer

Answer 1

An operating system is system software which manages the hardware and software resources of a computer and provides common services for computer programs. Except firmware, all computer programs need an operating system to function.

Functions of operating system are:

1. Booting - It starts the computer.

2. Performing basic computer tasks - For example, managing the peripheral devices like mouse and keyboard.

3. It provides a user interface - For example, command line and graphical user interface.

4. Handling system resources - For example, sharing the computer's memory, managing the central processing unit and disk drives.

Answer 2

Each operating system is composed of some kind of programming language, yet most utilization of programming languages is for applications, not for operating systems.

Without an operating system or some likeness thereof, it's hard to get any programming language (or whatever else) to do anything; the OS handles many assignments - particularly those identified with I/O or multitasking - in a uniform, standard way so that (a) people composing applications don't need to deal with every one of the subtle elements of those undertakings in each application they compose, and (b) the client is given a generally uniform, predictable UI.