Microsoft Windows is a personal computer operating system designed to play games and various applications. Windows has historically been the personal computer platform with the most exclusive and best-known games, often being synonymous with the personal computer itself. Due to the long lifespan of the platform, games released for older versions of Windows may not work on the newest hardware or software, and game technology varies from simplistic to advanced. Due to the extensive library of exclusive games and applications, the ability to run these programs is the focus of several projects, including the Wine project.