Virtual reality
Virtual Reality
Virtual Reality (pronunciation: /ˈvɜːrtʃuəl riˈælɪti/), often abbreviated as VR, is a computer technology that replicates an environment, real or imagined, and simulates a user's physical presence and environment to allow for user interaction.
Etymology
The term "Virtual Reality" was coined by Jaron Lanier in 1987 during an intense period of research around this form of simulation. The term "virtual" has been used in the computer sense of "not physically existing but made to appear by software," since 1959.
Related Terms
- Augmented Reality: A technology that superimposes a computer-generated image on a user's view of the real world, thus providing a composite view.
- Mixed Reality: A hybrid reality that merges real and virtual worlds to produce new environments where physical and digital objects co-exist and interact in real time.
- Computer Simulation: A program that duplicates the operations of a real-world process or system over time.
- Haptic Technology: A technology that recreates the sense of touch by applying forces, vibrations, or motions to the user.
Usage
Virtual Reality is used in a wide range of applications, from entertainment (e.g. video games) and education (e.g. medical or military training) to other forms of training and novel forms of communication such as Virtual Meetings.
Technology
Virtual Reality technologies include Virtual Reality Headsets, multi-projected environments, and wearable computers. These technologies are used to create artificial environments under the control of the computer.
Health Effects
There are many health and safety considerations of virtual reality. Most virtual reality systems come with consumer warnings, including: seizures; developmental issues in children; trip-and-fall and collision warnings; and others.
External links
- Medical encyclopedia article on Virtual reality
- Wikipedia's article - Virtual reality
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