(Advanced Technology EXtended motherboard) The PC motherboard that superseded the Baby AT design. The ATX layout rotated the CPU and memory 90 degrees, allowing full-length expansions to be ...

There are four motherboard sizes available in 2025 from major manufacturers such as Asus, Gigabyte, and MSI, among others.

To fund the creation of Apple's first computer, Steve Wozniak and Steve Jobs sold... ATX (not in the list above). The most mainstream and common motherboard form factor, ATX was created by Intel ...