There are surprising numbers in terms of a new technology. Gartner and Bloomberg Intelligence predict that by 2020, the annual revenue of virtual reality devices will reach 21 billion dollars. Forrester claims more than 30 million virtual reality devices will be sold each year, and this demand will come from both consumers and companies. It would not surprise that, Mark Papermaster, Chief Technology Officer of chip production company AMD, describes the virtual reality as a "new billion dollar opportunity"…