Virtual Reality or
VR refers to the environment and / or images that a user immerses
herself / himself in. Once in the VR environment, the user
interacts with computer generated objects and characters in the
virtual environment. The experience would seem physically real for
the user. A number of
electronic gadgets or devices have been developed to help users
engage themselves in a computer generated environment. Among them
VR head gear/helmet or
head mounted display (HMD)
fitted with sensors or data gloves
motion tracking controllers.
The word "virtual" is the antonym of "real".
See also augmented reality.