Virtual reality is a computer generated simulation of a 3 dimensional image or environment that can be intarcted with a simile real way on using electronic equipment.
Vr is the second highest grossing mobile game last year earning 1.3 billion dollars a year. Its still makes 100.000 million dollars a month, with an flexible audience of about 2 billion world wide phone users.
Evan suddler land created the first Vr bose connected to a computer not a camera and and that was in 1957 it was a large and scary looking contraption that was too heavy for the head and it was not comfortable for the head.
Nasa and the military are training people so they can be prepared for the real task since virtual reality is very similar to the real world they use it to trying the bugginers or to get more practice.
Vr can be used to treat people with depression, anxiety and phobias it can also be used as sports and medical training
Vr is overall an image that displays real life content.