History of Nintendo
In 1972, the first commercially available video game console, the Magnavox Odyssey, had a light gun accessory, the Shooting Gallery. This was the first involvement of Nintendo in video games. According to Martin Picard in the "International Journal of Computer Game Research": "in 1971, Nintendo had -- even before the marketing of the first home console in the United States -- an alliance with the American pioneer Magnavox to develop and produce optoelectronic guns for the Odyssey (released in 1972), since it was similar to what Nintendo was able to offer in the Japanese toy market in 1970s".
Nintendo video game consoles
The Game Boy was the first handheld game console sold by Nintendo that featured interchangeable cartridges for each game, unlike the Game & Watch that had a different system for each game. Released in 1989 in Japan, it is one of the world's best-selling game console lines, with over 100 million units sold worldwide. The classic Game Boy was sold in a number of different revisions and variations, including the streamlined Game Boy Pocket and the Game Boy Light in Japan. In 1998, Nintendo released the Game Boy Color, a new Game Boy platform with color graphics. Combined, the Game Boy and Game Boy Color sold 118.69 million units worldwide.