The Xbox 360 was the first home console to be released in the seventh generation of game consoles and competes against Sony's PlayStation 3 and Nintendo's Wii.
Known during development as Xenon, Xbox 2, Xbox Next or NextBox, the Xbox 360 was conceived in early 2003.
Xbox Live Arcade is an online service operated by Microsoft that is used to distribute arcade video games to Xbox and Xbox 360 owners. In addition to classic arcade games, the service offers some new original games as well as games from other consoles.
Microsoft XNA is a set of tools and technologies that includes XNA Studio, which provides versions of key production tools such as asset management, defect tracking, project automation and work lists.
Microsoft has stated that they intend to release more emulation profiles as they become available, with a goal of making the entire Xbox library playable on the Xbox 360.