ATX has dominated the gaming industry since replacing the Baby AT motherboard. ATX specifies the configuration and specification to improve the overall standardization of the motherboard. The advantage of the ATX motherboard is its availability of an enormous number of PCI and expansion slots and ports which is not in the case of Micro-ATX motherboards. The first ATX Motherboard was designed in 1981 and they continue to evolve as seen in this infographic. Here are some factors that you should definitely look for before investing in a motherboard.