Nintendo is a japanese company who releases consoles and videogames. Nintendo has made 5 consoles, the nes(Famicon in japan), the snes(Super Famicon in japan), the Nintedo 64, the Gamecube, and it's latest console, the Wii. It is also the leading company in handheld systems, with the Gameboy, the Gameboy color, the Gameboy Advanced, and the DS (Dual Screen).
Nintendo is known for releasing games for child audience. It has been the leading company on the market, compared only to Sony. Currently, it is leading the game market due to its succesful sales of Wii consoles. Wii is a seventh generation console that competes against Sony's PS3 and Microsoft's Xbox 360.