12.4.3.2 explain the purpose of virtual and augmented reality

Virtual and augmented reality 

Definition

Virtual reality (VR) is a simulated experience that can be similar to or completely different from the real world.

Augmented reality (AR) is a system used to overlay information about the world around you onto a screen.

Features

Virtual Reality can bring you anywhere, helping you learn about different places and ideas by experiencing them as if you were actually there.

Augmented Reality can put answers right where your questions are, overlaying helpful visual content and information on your real world.

A great example of this would be being an empty room yet being able to use digital technology to see how it would look in a different color with different furnishings before actually purchasing them. Sound graphics and other sensory input can help to make the experience more realistic.
Google Glass looks like a pair of glasses and contains a miniature projector that displays information onto the lens in front of your eye. It uses voice control and contains a built-in camera that can be used to record video and take pictures.

VIDEO

Differences between VR, AR and MR

Pros vs Cons of Virtual reality

Additional https://www.avantica.com/blog/virtual-and-augmented-reality-pros-and-cons

Sources: https://arvr.google.com/, 

Exercises

Ex. 1. "Pros and cons of Augmented Reality"

Ex. 2. "Applications of Augmented Reality"