Extended reality

Extended reality (XR) is an umbrella term for augmented reality (AR) and virtual reality (VR). See also The technology is intended to combine or mirror the physical world with a "digital twin world" able to interact with it, giving users an immersive experience by being in a virtual or augmented environment. The first usage of the term "extended reality" was in reference to the use of technology to extrapolate (extend) beyond typical human perception, e.g.

Extends: [Extended reality](https://wikipedia.org.ai/Extended reality), [User interface techniques](https://wikipedia.org.ai/User interface techniques), [Wearable computers](https://wikipedia.org.ai/Wearable computers), [Wearable devices](https://wikipedia.org.ai/Wearable devices), [Subfields of computer science](https://wikipedia.org.ai/Subfields of computer science)