The Case

A computer case, also known as a chassis, tower, enclosure or system unit. It is the protective outer shell that houses and secures the critical internal hardware of a personal computer, such as the motherboard, central processing unit, graphics processing unit, random access memory, storage and power supply unit. Its primary functions include shielding components from dust, moisture, physical impact and electromagnetic interference while providing a structural framework for mounting parts and ensuring proper airflow for cooling.

These enclosures typically constructed from steel, aluminum or plastic with modern designs often featuring tempered glass or mesh panels to enhance aesthetics and ventilation. Beyond protection, a computer case facilitates cable management, reduces operational noise and organized drive bays and I/O ports for easy access to peripherals.

Common Form Factors:

• Full-tower - Over 56cm (22in.) tall, offering extensive drive bays and space for high-end cooling solutions or multiple systems.

• Mid-tower - Approximately 46cm (18in.) tall, serving as the standard for most desktop builds with balanced space for components and airflow.

• Mini-tower - Smaller than mid-towers, typically with fewer drive bays, ideal for compact business environments.

• Desktop/Pizza Box - Low-profile case designed to sit horizontally on a desk under a monitor.