Microsoft's first Xbox console, released in North America in 2001, was called Xbox.
The original Xbox launched in North America on November 15, 2001, before arriving in Japan and Europe in 2002. It was Microsoft's first dedicated video-game console and competed with Sony's PlayStation 2, Nintendo's GameCube, and Sega's Dreamcast.
The console introduced several features that became strongly associated with Xbox, including a built-in hard disk, broadband-focused online gaming, and the Xbox Live service. Its controller was initially large, but Microsoft later introduced the smaller Controller S as the standard model in many markets.
A common mix-up is calling the first machine “Xbox One,” but Xbox One was the third major Xbox console family. The original Xbox's most successful launch-era exclusive was Halo: Combat Evolved, which helped establish the platform's identity.