Computer Concept Courses (CCC) Practice Test

A video card is typically installed on the motherboard of a computer. The motherboard has specific slots, such as PCI Express slots, designed for video cards and other expansion cards to connect directly and communicate with the CPU and other components.

The choice indicating the system unit may hint at the physical housing of the components, which includes the motherboard, but it doesn't accurately specify where the video card itself is mounted.

The power supply provides the necessary electrical power to the various components within the system, including the video card, but it does not serve as the installation site for the card.

The hard drive bay is designated for storage devices, such as hard drives or solid-state drives, and does not accommodate video cards, as they are not related in terms of function or installation.

Therefore, while the video card does reside within the system unit, it is more precise to state that it connects to the motherboard, where it is installed for optimal performance and communication with the rest of the system.