Question: how many types of xbox 360 are there?
Answer: 1.1 Xbox 360 S 250 GB model., 1.2 Xbox 360 S 4 GB model., 1.3 Xbox 360 S 320 GB limited editions., 1.4 Xbox 360 E., 1.5 Xbox 360 Core., 1.6 Xbox 360 [Pro/Premium], 1.7 Xbox 360 Elite., 1.8 Xbox 360 Arcade.