Virtual reality is an artificial environment created with software and presented to the user in a way that makes them feel like they are immersed in a real environment. Some key applications of virtual reality include education and training by allowing users to experience dangerous scenarios safely, movies by further immersing viewers, and video games by allowing physical interaction. The history of virtual reality includes early flight simulators developed in the 1950s and the first commercial VR system released in 1991. The future of virtual reality is uncertain but it will likely continue evolving for entertainment purposes in video games and movies.