No its the name of a Game Console owned by Microsoft, there are two Xbox's Xbox and Xbox 360.
A few example of current processors are
Intel Core 2 Duo
Intel Core 2 Quad
Intel Core 2 Extreme
Amd Athlon 64 x 2
AMD phenom
Intel Pentium Dual Core
AMD Turion TK 64
Intel Celeron
Intel Atom
It does have a processor in it however, called the Xenon