Question

Which component is strictly part of a Microprocessor System Unit, excluding peripherals?

• A. Keyboard
• B. Monitor
• C. CPU
• D. Printer

Hint:

CPU, RAM, and motherboard → System unit components
Keyboard, monitor, printer → Peripheral devices

Answer 1

The Correct Option is C

Concept:
A Microprocessor System Unit refers to the core internal components of a computer responsible for processing data and executing instructions. It excludes external input and output devices, which are called peripherals. Typical components of a system unit include:

• Central Processing Unit (CPU)
• Memory (RAM)
• Motherboard
• Internal buses

Peripherals such as keyboards, monitors, and printers are external devices connected to the system unit.
Step 1:Understanding the role of the CPU.
The Central Processing Unit (CPU) is the main processing component of the computer. It performs arithmetic calculations, logical operations, and controls the execution of instructions.
Step 2:Distinguishing peripherals from system unit components.
Devices like the keyboard, monitor, and printer are input/output peripherals used for interaction with the computer system.
Step 3:Selecting the correct answer.
Since the CPU is an internal component of the system unit and not a peripheral device, it is the correct answer. Conclusion:
Therefore, the component that is strictly part of a microprocessor system unit is the CPU.