Major Parts of Operating system
For to operate any hardware need software the operating system make enable all the user software that work together,few major parts are
It is a part of operating system load first and then remain in the main memory.The kernel provide all the possible essential services required by other part of operating system.It basically loading/Unloading application from memory,It use for file management,memory management and data security.like
Device driver is a small software use to tell the operating system that how to communicate with other part of computer hardware,like in sound card tell exactly how to transfer audio signal as input and how to take output from speaker.It can load and boot particular computer setup and provide the exact detail which we need that's called registry kept in fil in window.
Pointer is basically use to select the objects,whenever we are doing work the pointer appear on the screen and control the pointed object like use in mouse,joystick etc it look like
It contain small picture which represent commands files or window.When we move pointer on these object and press the button,that time the command are executed and the file shape change into window.like
That's is a screen where the group of icons or grouped together.Like in desktop we can see the real shape of icon or any object,like
We can move the window in different area ,we can run different programs and dispaly different information and divide the screen into different areas.etc like
The Modern CPU have different type of mode like two type of modes are present like protected mode and supervisor mode supervisor mode used in operating system kernel in low level that unrestricted the access to hardware.protected mode is a contrast use to almost in every thing else applications operate within protect mode
First load the program in memory after this it allow for run the program.For running program must have one input as file format or output device.it manipulate the file and detect the error during execution and make more efficient any application.
The program or in even when during any signal or any execution any problem occur or interrupt the signal it well take specific action and suspend the program temporarily to service the interrupt.like any key keyboard are stock the keyboard interrupt signal generate thats called hardware interrupts while any problem during software means software interrupts
It allows only to access the authorized and safe things know in modern operating system build the very strong rule that every program must run according to the rule.it protect the computer application from harm things.
