Virtual Reality

A computer simulation of a real or imaginary system that enables a user to perform operations on the simulated system and shows the effects in real time.A computing technique in which the computer user sees only a computer output screen, and all the movements and sounds from the user are recorded by the computer. This allows the computer to simulate another environment in which users might well believe they are wholly involved. Virtual reality is used in a wide range of contexts, such as flight simulators for training pilots, videoconferencing suites, and computer games.