To fully experience PC games and other software in 3D, you'll need a player or computer that is capable of delivering high-quality graphics to a virtual reality headset. This requires a player or computer with a powerful graphics card and processor. It's also recommended that your computer have at least 8GB of RAM in order to download VR content. The number of VR-ready PCs continues to grow, so you'll have a variety of options to choose from in order to enjoy smooth gameplay, even when running graphics-heavy games. https://www.youtube.com/watch?v=hQ_pWAU7wg4&t=1s
David Em became the first artist to produce navigable virtual worlds at NASA's Jet Propulsion Laboratory (JPL) from 1977 to 1984. The Aspen Movie Map, a crude virtual tour in which users could wander the streets of Aspen in one of the three modes (summer, winter, and polygons), was created at the Massachusetts Institute of Technology (MIT) in 1978. https://www.youtube.com/watch?v=ORWsm8qMaZ4&t=1s
At some point the 2.0 Lighthouse sensors will arrive with a new curved design and support to add up to four at once (right now it's just two). Meanwhile, the Vive's Trackers enable you to bring any object into VR, and some developers have already found some creative uses for them. These, combined with the TPCast's wireless adapter, gives the Vive the advantage in the tech battle. However, if you wait a little while you can get your hands on the new Vive Pro Eye, which adds new eye-tracking technology (more on that further below). https://www.youtube.com/watch?v=MMtkl_-jXC0&t=1s
Answering “what is virtual reality” in technical terms is straight-forward. Virtual reality is the term used to describe a three-dimensional, computer generated environment which can be explored and interacted with by a person. That person becomes part of this virtual world or is immersed within this environment and whilst there, is able to manipulate objects or perform a series of actions.
By 1994, Sega released the Sega VR-1 motion simulator arcade attraction, in SegaWorld amusement arcades. It was able to track head movement and featured 3D polygon graphics in stereoscopic 3D, powered by the Sega Model 1 arcade system board. Apple released QuickTime VR, which, despite using the term "VR", was unable to represent virtual reality, and instead displayed 360 photographic panoramas. https://www.youtube.com/watch?v=IapStzmiw1w&t=1s