The video game industry is the economic sector involved in the developmentmarketing, and monetization of video games. It encompasses dozens of job disciplines and its component parts employ thousands of people worldwide. The video game industry has grown from focused markets to mainstream. Modern personal computers owe many advances and innovations to the game industry: sound cardsgraphics cards and 3D graphic acceleratorsfaster CPUsand dedicated co-processors like PhysX are a few of the more notable improvements. Sound cards were developed [ by whom? Ben Sawyer of Digitalmill observes that the game industry value chain is made up of six connected and distinctive layers:. The game industry employs those experienced in other traditional businesses, but some have experience tailored to the game industry. Some of the disciplines specific to the game industry include: game programmergame designerlevel designergame producergame artist and game tester. Most of these professionals are employe...