Like a DVD and stuff like that.
When a computer restarts without a hardware power-down-power-up cycle, it is doing an update.
Well if you put sad/mad/scared/tired/ect it should pop up with the same person.
Answer: An operating system manages and runs all of the hardware and software installed onto the computer.
Explanation:
It performs basic tasks such as file, memory, and process management, handling input and output, and controlling peripheral devices such as disk drives and printers.