What does the term 'Peripheral' refer to?

The term 'Peripheral' commonly refers to a piece of equipment that adds functionality to a computer. Peripherals are external devices that connect to the main computer system to enhance its capabilities. This can include various devices such as printers, scanners, keyboards, and external storage drives. They function as supplementary equipment that does not form part of the core structure of the computer but is essential for its operation and user interaction, thereby extending the functionality of the main system.

In the context of computing, it's critical to understand the distinction between core components (like the CPU and motherboard) and peripherals. While the primary components are essential for the system's basic operation, peripherals enhance the overall user experience and expand the system's versatility.