Xbox
The original Xbox was released on November 15, 2001, in North America, February 22, 2002, in Japan, and March 14, 2002, in Australia and Europe. It was Microsoft's first foray into the gaming console market. As part of the sixth-generation of gaming, the Xbox competed with Sony's PlayStation 2, Sega's Dreamcast (which stopped American sales before the Xbox went on sale), and Nintendo's GameCube. The Xbox was the first console offered by an American company after the Atari Jaguar stopped sales in 1996. The name Xbox was derived from a contraction of "DirectX Box", a reference to Microsoft's graphics API, DirectX.
Xbox One
On June 13, 2016, during its E3 2016 press conference, Microsoft unveiled Xbox One S, a revision of the original Xbox One hardware with a streamlined form factor. Microsoft also teased a high-end version of Xbox One with upgraded hardware codenamed "Project Scorpio", which was unveiled and released the following year as Xbox One X.