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 Entertainment System
The NES can be emulated on many other systems, most notably the PC. The first emulator was the Japanese-only Pasofami. It was soon followed by iNES, which was available in English and was cross-platform, in 1996. It was described as being the first NES emulation software that could be used by a non-expert. NESticle, a popular MS-DOS emulator, was released on April 3, 1997. There have since been many other emulators. The Virtual Console for the Wii, Nintendo 3DS and Wii U also offers emulation of many NES games.