The Nintendo DS, sometimes abbreviated NDS or DS, is a handheld game console developed and manufactured by Nintendo released in 2004. The DS stands for "dual screen". The console features a clamshell design, with two LCD screens inside - the bottom of which is a touch-sensitive screen. It is succeeded by the Nintendo 3DS.
The Nintendo DS Lite, released in 2006, is a slimmer, more lightweight redesign of the earlier Nintendo DS model; aesthetically sleeker to complement Nintendo's Wii, and to appeal to broader commercial audiences.
The Nintendo DSi, released in 2009 (2008 in Japan), is an even slimmer model than the Lite Model. Changes to the DSi are greater than the previous Lite model as it features two interactive digital cameras, an SD card slot, internal memory, and an online store as well as an internet browser built-in. However, unlike the previous DS models, the DSi does not have a GameBoy Advance slot.