A video game is a game that involves interaction with a user interface to generate visual feedback on a video device.
The "video" in "video game" traditionally refers to a raster display device. However, with the popular use of the term "video game", it now implies any type of display device. The electronic systems used to play video games are known as platforms; examples of these are personal computers and video game consoles. These platforms are broad in range, from large computers such as mainframes, to handheld devices such as cell phones and PDAs. Specialized video games such as arcade games, while previously common, have gradually declined in use. (wikipedia)