History of VR (technological milestones)

1956 Sensorama (Morton Heilig)

3D visuals, vibration, stereo sound, wind, smell, little interaction.

1961 Headsight System (Philco Corp.)

Head Mounted Display (HMD), head tracking, remote video camera,

telepresence.

1965 The Ultimate Display (Ivan Sutherland)

Stereoscopic HMD, computer generated images, tracking, visually

coupled system.

1967 Grope (University of North Carolina)

6 degree of freedom force feedback.

1977 The Sayre Glove (Sandin, Sayre, DeFanti Univ. Illinois)

Gesture recognition.

1987 Virtual Cockpit (British Aerospace)

head and hand tracking, eye tracking, 3d visuals, 3D audio,

speech recognition, vibro tactile feedback.