The Xbox 360 is the second video game console produced by Microsoft, and the successor to the Xbox. The Xbox 360 competes with Sony's PlayStation 3 and Nintendo's Wii as part of the seventh generation of video game consoles. The integrated Xbox Live service allows players to compete online and download content such as arcade games, game demos, trailers, TV shows, and movies.
The Xbox 360 was officially unveiled on MTV on May 12, 2005, with detailed launch and game information divulged later that month at the Electronic Entertainment Expo (E3). The console sold out completely at the release in all regions except in Japan, and, as of January 5, 2009, 28 million units have been sold worldwide according to Microsoft. The Xbox 360 is available in three configurations: the "Arcade", the "Xbox 360", and the "Elite" console, each with its own selection of accessories. The 'Core' system (which included no accessories, except for a wired controller) has now been discontinued.