Virtual Reality as defined by Merriam-Webster is “an artificial world that consists of images and sounds created by a computer and that is affected by the actions of a person who is experiencing it”. In other words, VR places the user inside an experience and instead of viewing a screen in front of them, users are immersed and able to interact with 3Dworlds. The difference between Augmented Reality and Virtual Reality is that with AR a user sees digital information superimposed onto the real world.
There are several platforms and pieces of hardware that can be used to experience VR, but the largest growth has been in mobile VR. With mobile VR, you can download a VR app to your mobile device or tablet,open it, place the mobile device into a headset (or HMD), and suddenly you are part of an immersive virtual environment.