How they are able to interact with virtual world without having to wear or hold any VR device in Mixed Reality? [closed]

1. What technology we will used to allows you to interact with the virtual world?
2. What kind of technology allows users to interact with a mixed virtual and real world in a natural way?
3. How are avatars in the virtual world controlled?

What technology we will used to allows you to interact with the virtual world?

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.

What kind of technology allows users to interact with a mixed virtual and real world in a natural way?

Augmented reality (AR) enhances users' real-world views with digital overlays that incorporate artificial objects. VR creates synthetic environments through sensory stimuli.

How are avatars in the virtual world controlled?

Today's avatars that populate virtual worlds are interactive icons that exist in realistic virtual worlds and virtual worlds depict a world very similar to reality. Individuals control their avatars using input devices like the keyboard, mouse and other specially designed gadgets.