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".
Nimrod (computer)
The game of Nim running on the Nimrod is a candidate for one of the first video games, as it was one of the first computer games to have any sort of visual display of the game. It appeared only four years after the 1947 invention of the cathode-ray tube amusement device, the earliest known interactive electronic game to use an electronic display, and one year after "Bertie the Brain", a computer similar to the Nimrod which played tic-tac-toe at the 1950 Canadian National Exhibition. The Nimrod's use of light bulbs rather than a screen with real-time visual graphics, however, much less moving graphics, does not meet some definitions of a video game.