The Nintendo Game Boy is a handheld gaming console released by Nintendo in 1989. It features an 8-bit processor and a monochrome screen, allowing players to enjoy games on the go. The device became popular for its portability and a wide range of available games, including classics like Tetris and Super Mario Land. The Game Boy was the first in a long line of handheld consoles from Nintendo, leading to successors like the Game Boy Color and Game Boy Advance. Its innovative design and successful game library helped establish handheld gaming as a significant segment of the video game industry.