This document provides an introduction to basic computer hardware components, including the processor, RAM, motherboard, hard disk, cards, ports, BIOS, peripherals, and cabinets. It describes the processor as the brain of the computer and lists common types. It defines RAM as volatile random access memory that comes in static and dynamic varieties. It also briefly outlines hard disks, video cards, sound cards, network interface cards, ports, the BIOS, and various peripherals and their form factors.