Virtual reality (VR) is an experience taking place within simulated and immersive environments that can be similar to or completely different from the real world. Applications of virtual reality can include entertainment (i.e. gaming) and educational purposes (i.e. medical or military training). Other, distinct types of VR style technology include augmented reality and mixed reality. https://www.aliexpress.com/item/SVPRO-new-design-3d-video-camera-virtual-reality-dual-hd-android-smart-phone-mobile-phone-camera/32764347423.html
VR can simulate real workspaces for workplace occupational safety and health purposes, educational purposes, and training purposes. It can be used to provide learners with a virtual environment where they can develop their skills without the real-world consequences of failing. It has been used and studied in primary education, military, astronaut training, flight simulators, miner training, architectural design, driver training and bridge inspection. Immersive VR engineering systems enable engineers to see virtual prototypes prior to the availability of any physical prototypes. Supplementing training with virtual training environments has been claimed to offer avenues of realism in military and healthcare training while minimizing cost. It also has been claimed to reduce military training costs by minimizing the amounts of ammunition expended during training periods.
Many other companies are developing Virtual Reality headsets and other peripherals. Upcoming hardware includes the GenBasic Quad HD, StarVR StarOne, Vrgineers XTAL and Pansonite VR Headset. As more and better hardware hits the market, it will continue to power a growing ecosystem of hardware manufacturers, software developers, and content providers. https://www.youtube.com/watch?v=SpHQ-iu5EGs&t=1s
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