What does VR virtual reality look like? How much difference is there between it and the real thing?

Virtual Reality" is from the English "Virtual Reality", referred to as VR technology. It was first proposed by Joe Lanier of the United States in the early 1980s. Virtual Reality (Ⅵ) is a set of computer technology, sensor technology, human psychology and physiology in one of the integrated technology, which is through the use of computer simulation system to simulate the external environment, the main model object has the environment, skills, sensing equipment and perception, to provide users with multi-information, three-dimensional dynamic, interactive simulation experience

VR technology can be applied to more fields, the current use of the more fields include medical, engineering, and other areas. More fields include medical, engineering, military, aviation, navigation and other aspects, such as aviation, aerospace pilots in the training cabin facing the screen for a variety of driving operations, the simulation of the scene outside the cabin of the screen image changes, the pilot can get the simulation of the training experience. This way of putting people in the image environment has been used in aircraft simulation training for decades. There are also in the field of entertainment, games, education, augmented reality VR technology application prospects are even more extensive. In physics classes, students can create their own natural landscapes such as rainfall and water vapor, which are intuitively interesting and vivid. This novel teaching method is also realized through VR technology. It can be said that VR can create a future, present, past, real or fantasy world. At present, many games have been the first to adopt this technology, widely popular among young people.