The Game Boy is an 8-bitfourth generationhandheld game console developed and manufactured by Nintendo. It was first released in Japan on April 21, 1989, in North America later the same year, and in Europe in late 1990. It was designed by the same team that developed the Game & Watch series of handheld electronic games and several Nintendo Entertainment System (NES) games: Satoru Okada, Gunpei Yokoi, and Nintendo Research & Development 1.^[14][15]

It is Nintendo’s second handheld game console and combines features from both the Game & Watch handheld and NES home system. The console features a dot-matrix screen with adjustable contrast dial, five game control buttons (a directional pad, two game buttons, and “START” and “SELECT”), a single speaker with adjustable volume dial and, like its rivals, uses cartridges as physical media for games.