12. Which component is part of the system unit?
Answer: B
Motherboard is a component of the system unit.
The motherboard is a crucial component of the system unit, serving as the main circuit board that connects and allows communication between various hardware components of a computer.
A) Keyboard
The keyboard is an input device used for typing and entering commands into a computer. However, it is not considered a part of the system unit itself, as it is external to the main components housed within the unit.
B) Motherboard
The motherboard is indeed part of the system unit, as it contains the CPU, RAM, and other essential components that facilitate the computer's operation. It is the central hub for connecting all internal hardware and enabling communication between them.
C) Printer
A printer is an output device used to produce physical copies of documents and images. It is not integrated into the system unit and operates externally, thus making it incorrect for this question.
D) Monitor
The monitor is also an output device that displays visual information from the computer. Like the printer, it is external to the system unit and does not form part of its internal components.
Conclusion
The motherboard is the only option that directly relates to the internal structure of the system unit, while the keyboard, printer, and monitor serve as external devices with distinct functions. Hence, the correct answer is definitive, as it identifies a central component necessary for the computer's operation, unlike the other options.