Appendix D: XR Glossary of Terms
Appendix D XR Glossary of Terms This glossary defines key terms, concepts, and technologies used in Extended Reality (XR) . It serves as a quick reference for revision, interviews, and practical understanding. D.1 CORE XR TERMS Extended Reality (XR): An umbrella term covering VR, AR, and MR technologies. Virtual Reality (VR): A fully immersive digital environment that replaces the real world. Augmented Reality (AR): Digital content overlaid on the real world. Mixed Reality (MR): A blend of real and virtual environments where digital objects interact with physical ones. Spatial Computing: Computing that understands and interacts with the physical space. D.2 HARDWARE-RELATED TERMS Head-Mounted Display (HMD): Wearable device that displays immersive visuals. Inside-Out Tracking: Tracking using onboard cameras. Outside-In Tracking: External sensors track user movement. Field of View (FOV): Extent of the visible virtual environment. Refresh Rate: Number of frames displayed per ...