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 system software
During the Electronic Entertainment Expo 2015 in June, Microsoft discussed three major features that later came to Xbox One consoles in November 2015: Windows 10 streaming, Xbox 360 backward compatibility, and an interface redesign known as the New Xbox One Experience. In advance of the public release of Windows 10, a July 2015 update let users stream games from their Xbox One to any device running Windows 10, a feature announced in January 2015. The service streams only to one device at a time.