Usually it is seen that people use equipments without knowing the scientific approach it implies.. Actually we don't have to till the our work goes on uninterrupted.. There is no need of taking an overhead for knowing what approach does the equipment use..
It is usually a good practice to have at least a brief idea of how the thing works..
Here, we would talk about the COMPUTER which is right in front of you. We use computers freely, but most of us never bother to know what's inside the box. Why should we..?
What is the thing that keeps it alive and always ready to work at your command..?
It's the OPERATING SYSTEM
THE OPERATING SYSTEM
An operating system is the software that manages the computer's hardware and provides a convenient and safe environment for running programs. It acts as an interface between programs and the hardware resources that these programs access.
It is loaded into the memory when a computer is booted and remains active as lng as the machine is up.
Now relating something to the real life.. Let take your mother.. She manages everything in the home.. She knows each and everything about the home.. What to do, When to do, How to do, Handles a lot many tasks single handedly. For your home she's the OPERATING SYSTEM. Without her your a house can't function properly.
The few important tasks which an OS(Operating System) does are as below
- Allocates memory to the program and loads the program to the allocated memory.
- Loads the CPU registers with the control information related to the program.
- It keeps track of the instruction last executed.
- Handles the hardware and their access to the processor.
- Cleans up the memory after execution of a program
Don't worry if you didn't understand of the above usage..you just need some knowledge of Computer Processing which you will gain as you proceed.
There are a lot many operating systems in the market..
- The most popular: Windows
- The most reliable: Linux
