An old idea that keeps being rediscovered
The core idea of virtual reality is that a person wears or enters a device that replaces what they see and hear with a computer-generated or recorded scene, and that the scene reacts to their movements. The idea has been tried, praised, dismissed and revived many times. Looking at the whole span is useful because it shows a repeating pattern: a burst of excitement, a gap between what was promised and what the hardware could do, a quiet period, and then a return once components improved.
This overview gives the timeline and the pattern. Whether any one machine deserves the title of first is a separate question, so here we stay with the broad outline.
Before computers: stereoscopes and simulators
The visual trick behind most headsets, showing each eye a slightly different image to create depth, is much older than computing. Stereoscopes were popular in the 19th century. Mechanical flight trainers appeared in the 1920s and 1930s, and simulators of various kinds followed for pilots and other crews, an early form of what is now called computer simulation once computers were added. In the 1950s the cinematographer Morton Heilig developed a booth called the Sensorama, which combined film, stereo images, sound, vibration and even smells, though it was not interactive in the way a computer-driven system would be.
None of these were computer-based, but they set expectations. People had already imagined a machine that could place a viewer inside a scene.
The 1960s: head-mounted displays appear
During the 1960s, several engineers experimented with displays worn on the head. Some systems used cameras on remote platforms, so that a viewer’s head movements steered a camera and the video appeared in a headset. Ivan Sutherland, a computer graphics researcher, described a vision of a computer display as a window into a virtual world in the mid-1960s and built a head-mounted display with colleagues at the end of that decade. It was heavy, hung from a ceiling mount, and showed simple wireframe shapes, but it combined a tracked head position with computer-generated images. The technology behind these images is part of the history of computer graphics.
These were laboratory prototypes. They worked, but they were expensive, slow and bulky, and few people ever tried them.
The 1970s and 1980s: labs, the military and a new name
In the following years, work continued mostly in research labs and in military and aerospace projects, where training with simulators was valuable. Researchers such as Myron Krueger explored projected, camera-based interactive environments, which did not require a headset. In the 1980s the American space agency and the Air Force funded research into head-mounted displays and head-tracking for pilots and astronauts.
The phrase “virtual reality” became widely used around the end of the 1980s, partly through a company led by Jaron Lanier, which sold gloves and headsets for research. That period also gave the field a strong media profile, with many predictions of what was just around the corner.
The 1990s: the first consumer wave
In the early 1990s, VR reached the public in two forms. Arcade companies installed headset-based game machines in entertainment centers. At the same time, console and toy makers announced or released consumer products; Nintendo’s Virtual Boy, from 1995, is a well-known example, though it used a monochrome display and did not sell well. Some announced products never shipped.
The reasons for the fade are usually given as a combination of limited image quality, slow response that could cause discomfort, high cost, and simply too little software. Computing power was growing quickly, particularly in the era of 1990s computers, but not quickly enough for a convincing experience at an affordable price. Interest drifted away from consumer products, although research continued in universities, medicine, design and training, including room-sized projection systems.
The 2010s: the second consumer wave
A new round began in the early 2010s. Several factors came together: small, high-resolution screens such as the liquid crystal displays developed for smartphones, inexpensive motion sensors, and graphics processors fast enough to draw two images at a high refresh rate. A crowdfunded headset project gained wide attention around 2012, a large technology company bought its maker, and several major companies released consumer headsets in the middle of the decade.
This wave also used the term augmented reality for systems that overlay graphics on a view of the real world. The question of how far these devices become part of daily life remains open. Headsets have found steady uses in games, simulations and training, while more general uses are still debated, and predictions in this area have often been too confident.
What the pattern suggests
Looking across these decades, a few themes recur:
- The idea tends to arrive before the hardware that can deliver it comfortably.
- Military, aerospace and research funding carried the field through quiet periods.
- Consumer interest often follows a cheaper component from another industry, such as screens or sensors.
- Comfort, cost and available content matter at least as much as raw technical specifications.
Whether the current wave becomes permanent is uncertain. History suggests caution about both enthusiastic and dismissive forecasts.