Operating System (OS)
....... are specially designed computer chips that reside inside other devices, such as your car or electric thermostat

Embedded computer
Robotic computer
Server
Mainframes

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Operating System (OS)
You should choose sleep option when

When computer gets hanged frequently. Let it sleep for some time
You finish working and going to bed
You are leaving for a very short time and want to resume you work shortly
The computer is tired after working for the whole day

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