Answer:
the software that supports a computer's basic functions, such as scheduling tasks, executing applications, and controlling peripherals.
The answer is 735 W.
He runs up the stairs, so he needs a total amount of energy = mgh = 5880 Joules.
For the rate: since he goes from zero energy to 5880 Joules over 8 seconds...
Joules/sec = 5,880/8 = 735 W
To start up windows and boot the system to make sure no hackers or viruses are on windows so your computer does not get infected with a hacker or virus
hope this helps