Awhining sound coming from the power supply after attempting to power up a system is a typical sound that occurs when a power supply is adjusting to temperature changes, and should be considered normal. a) true b) false

false

Explanation:

a PC needs to give a silent noise or better still no noise when it is being powered. It could be a problem within the coil in the power supply unit or a graphics card and the noise changes volume when a certain task is performed on it.

The two main causes of whinning noise in a computers are capacitors squealing and coil whinning.

answer; ///i believe that the correct answer is (ballad);

the answer to your question would be something called hertz. the unit of measurement called a hertz, which is one cycle per second, is used to measure clock speed. within one cycle, your computer processes, refreshes, or updates itself to the changes that it is going through. in the case of computer clock speed, one hertz equals one tick per second. the clock speed of computers is usually measured in megahertz (mhz) or gigahertz (ghz)