This question tests the fundamental understanding of a computer's architecture. A computer system is broadly divided into two main parts: the central System Unit that contains the core processing components, and the Peripheral Devices that are connected to the system unit to provide input, output, and extended storage.
Understanding the Question
The question asks to identify the component from the list that is an internal part of the system unit, not an external peripheral device.
Key Concepts and Approach
The key is the distinction between internal processing hardware and external input/output (I/O) devices. The approach is to classify each option into one of these two categories.
Detailed Solution
Defining Peripherals: Peripherals are external devices that connect to the system unit to expand its capabilities.
A Keyboard is an input peripheral.
A Monitor is an output peripheral.
A Printer is an output peripheral.
Defining the System Unit: The system unit is the main enclosure that houses the computer's primary components, such as the motherboard, memory (RAM), and the central processing unit.
Identifying the Core Component: The Central Processing Unit (CPU) is the brain of the computer. It is located on the motherboard inside the system unit and is responsible for executing instructions and performing calculations. It is an essential internal component, not a peripheral.