Virtual Reality is the simulation of a three-dimensional environment that appears real to the viewer.A virtual reality simulation happens in real time or as the viewer watches.The viewer can manipulate the surroundings that he or she sees during a virtual reality simulation.
Virtual reality provides new and helpful ways for people to interact with computers,machines and other people.For example,in areas such as medicene,simulation using virtual reality can provide realistic experiences, such as practicing specific surgical techniques before attempting an actual operation.To be more familiar with Virtual Reality,Hollywood movie "THE MATRIX" says it all.
Three types of hardware are used to create a virtual reality environment.Sensors are used to detect the viewer's reactions or movements,effectors are used to simulate the viewer's senses, and a super computer links the sensors and effectors to create a illusion of a real illusion of a "real" physical environment.
Electronic gloves have been designed as a way of utilising the natural dexterity of human hands to interact with computers.The concept allows the hand to be used as a tool to point, select,reach and even grab information or objects seen on a computer screen or in a virtual reality environment.
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