Overview
Introduced in 1995, ATX is the most common form factor for desktop computers. It improved upon the older 'AT' design by standardizing the placement of the CPU and I/O ports, allowing for better airflow and easier expansion.
Variations
- Standard ATX: 12 x 9.6 inches.
- Extended ATX (E-ATX): Larger, used for high-end workstations and servers.
- Micro-ATX: A smaller version that fits in ATX cases.