Identifying Computer Hardware Components

The question asks to classify the keyboard, monitor, and cabinet based on their function within a computer system.

• Keyboard: An input device used to enter data and commands.
• Monitor: An output device that displays visual information.
• Cabinet: The main physical case housing the core components like the motherboard, CPU, and storage drives (often called the system unit or tower).

These items are all physical objects that you can touch and see. They are tangible parts necessary for the computer to function.

Understanding Computer Hardware

Computer hardware refers to the physical components of a computer system.

• The keyboard, monitor, and cabinet are all physical parts.
• The control unit and storage unit are specific functional parts *within* the computer hardware, but the question lists external peripherals and the main casing.
• Computer software consists of non-physical instructions and data.

Therefore, the keyboard, monitor, and cabinet are collectively classified as computer hardware.