It is a text-based online virtual reality system to which multiple users are connected at the same time.

It also could be considered a very early virtual reality system.

This might include products such as mobile phones, large scale public address systems or virtual reality systems in research laboratories.

The equipment in this system costs only about $25,000, as opposed to $250,000 for most virtual reality systems.

Its main application is a photorealistic material rendering of objects in virtual reality systems.

Such virtual reality systems are already in existence today and foreshadow far more powerful developments likely within a few years.

But computerized virtual reality systems are starting to let doctors and nurses learn by doing - without doing it to a live patient.

Apart from its use as a game engine, it is used for virtual reality systems, serious games and visualization.

Though no real estate brokers have yet developed a virtual reality system to sell homes, such an process isn't a great leap from existing uses.

Since the 1990s, rangefinders have been used in virtual reality systems to detect operator movements and locate objects.