what are the different types of xbox 360?
['Xbox 360 S 250 GB model.', 'Xbox 360 S 4 GB model.', 'Xbox 360 S 320 GB limited editions.', 'Xbox 360 E.', 'Xbox 360 Core.', 'Xbox 360 [Pro/Premium]', 'Xbox 360 Elite.', 'Xbox 360 Arcade.']