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Augmented reality (AR) is the modification of a real-life environment by the addition of sound, visual elements, or other sensory stimuli.| Investopedia
Virtual reality (VR), the use of computer modeling and simulation that enables a person to interact with an artificial three-dimensional (3-D) visual or other sensory environment. VR applications immerse the user in a computer-generated environment that simulates reality through the use of| Encyclopedia Britannica