Nope wrong Dreamcast is the incarnate of every major console released afterwards. In fact Xbox is like a pseudo Dreamcast two. Dreamcast lists of firsts: first with online play built in, first with interactive lcd controler, first with web browser etc. The system was game changing!
The XBOX was the first one to do online gaming well on consoles, this is not even debatable.
The LCD controller was the first and last since 1999...there is a reason that nobody has tried to shoehorn it in there since. We will see what the Wii U can do with their new gimmick.
The Browser was wack.
The XBOX:
First to come with a hard drive
First GOOD online console experience
First controller setup and franchise that showed that FPS can indeed be done on consoles
The XBOX had better hardware and vision for the future. The dreamcast had better games.