The document is an introduction presentation about virtual and augmented reality technologies. It defines virtual and augmented reality, describes how VR immerses users in simulated environments using headsets while AR enhances the real world. Examples are provided of VR uses for education, entertainment, and therapy. Popular VR headsets like Oculus Rift and HTC Vive are mentioned. The presentation concludes by making various VR and AR devices available for users to explore.