This document introduces Hackintosh, which is running Mac OS X on non-Apple hardware. It discusses how Hackintosh started as a secret Apple project in 2005 and provides timelines of Mac OS X versions. It describes the approaches of using kernel patches and boot loaders to make Mac OS X run on x86 PCs. The document also lists the pros and cons, hardware requirements, and steps to install Mac OS X on a PC to build a Hackintosh. It provides examples of hardware configurations and references for more information.