You are reviewing information about how laptops process powe

You are reviewing information about how laptops process power in order to run correctly and discover that a device called a DC controller is a very important part of how power is utilized in a laptop. What is a DC controller?

A. It is the converter box that sits on the laptop’s power cord between the plug for the wall socket and the plug for the laptop’s power port.

B. It is an internal component that processes DC power after it has been changed from AC wall power by the external power converter.

C. It is an external component that processes DC power after it has been changed from AC wall power by the external power converter.

D. It is another name for the power port on the exterior case of the laptop.

Solution

C. If the customer is putting his laptop into Sleep mode (Standby mode in Windows XP and before), his desktop and data are stored in RAM, which requires the laptop to use additional battery or main electrical power, resulting in additional heating of the unit.