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

B. The DC controller is an internal component built into the laptop’s motherboard that makes very small adjustments in the DC power voltage in order to deliver just the right amount of power to the various laptop components such as the hard drive and the LCD screen