Virtual reality is an immersive technology which gives us a sensation of being physically present in a computer generated environment. It stimulates user's physical presence in an illusory world This technology allows us experiencing a new dimension and interaction with it. Origin:How it came to effect Virtual means something in essence or effect but not real. It is often related to computer sense of not physically existing but made to appear or feel real by using software which stimulate our sensations. It is a blend of technologies working together to create an immersive illusion  to the user. image source: vive.com  The origin of virtual reality finds traces in early 20th century , however exact origin of VR is disputed. Many inventors dig their feet to devlop improved VR technology but those products didn't succeed due to technical glitches in their base model. Earliest Deployment The earliest massive deployment of this technology was  in Airforce...