This document provides an introduction to basic computer hardware components. It discusses the processor, RAM, motherboard, hard disk, sound card, video card, peripherals such as keyboards and monitors, and cooling fans. The processor processes instructions, RAM temporarily stores active data and programs, the motherboard contains core circuitry and components, and the hard disk provides permanent storage. Sound and video cards output audio and visual signals, and peripherals are external devices that users interact with. Cooling fans keep internal components from overheating.