Answer:
A person or thing that provides a service or commodity.
No its measured in Hertz Hz
Answer:
CPU is known as <u>Central</u><u> </u><u>Processing</u><u> </u><u>Unit</u><u>.</u>
Explanation:
I think that you might have used it a lot or its just a glitch and will come back after some time.
It might be that your screen cracked.
But try re-booting if that does not work, wait and take off the battery.
