Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A video game console is an interactive entertainment computer or customized computer system that produces a video display signal which can be used with a monitor or a television set (TV). More precisely, it is a machine that is designed for playing video games on a TV. As of 2007, it is estimated that video game consoles have made up 75% of the world's gaming market. There has been eight generations as of 2012 - of video game consoles since the release of the first one the Magnavox Odyssey in 1972...