The Dreamcast (ドリームキャスト Dorīmukyasuto?, code-named White Belt, Black Belt, Dural, Dricas, Vortex, Katana, Shark, and Guppy during development) is a video game console made by Sega, and is the successor to the Sega Saturn. An attempt to recapture the console market with a next-generation system, it was designed to supersede the PlayStation and Nintendo 64. Originally released sixteen months before the PlayStation 2 (PS2) and three years before the Nintendo GameCube and the Xbox, the Dreamcast is part of the sixth generation of video game consoles. Dreamcast was widely hailed as ahead of its time, and is still held in high regard for pioneering online console gaming. Sega discontinued the Dreamcast in March 2001, and withdrew entirely from the console hardware business; however, support continued in Japan where consoles were still sold until 2006 and new licensed games were still being made by companies of the arcade market until 2007.
more at : http://en.wikipedia.org/wiki/Dreamcast