This is a brief overview of common VR hardware technologies.

Visual hardware technology

Head-mounted displays LCD shutter glasses Virtual retinal displays Projection systems (e.g. CAVEtm )

Aural hardware technology

Surround-sound systems 3D audio processors Microphones Headphones

User input hardware technology

3D motion tracking Gloves Body suits Wands 3D mice Spaceballs Speech recognition

Haptic feedback technology

Force feedback provides physical constraints Motion platforms Hand controllers Joysticks Exoskeletons Tactile feedback provides a sense of touch through, for example, vibrating nodules inside a glove or suit