Question

The system unit of a personal computer typically contains which of the following?

• A. Microprocessor
• B. Disc Controller
• C. Serial Interface
• D. All of the Above

Hint:

The system unit houses the CPU, controllers, interfaces, and other essential internal hardware — everything except peripherals like the monitor or keyboard.

Answer 1

The Correct Option is D

The system unit is the main body of a personal computer that houses critical components needed for computing tasks.
It typically contains:
1. Microprocessor (CPU): The brain of the computer, executing instructions and processing data.
2. Disc Controller: Manages the reading and writing of data to and from storage devices such as HDDs, SSDs, or optical drives.
3. Serial Interface: Allows communication between the computer and external devices via serial ports.
Since all these components are typically part of the system unit, the correct choice is All of the Above.