"The CAVE is a new virtual reality interface. In its abstract design, it consists of a room whose walls, ceiling and floor surround a viewer with projected images. Its design overcomes many of the problems encountered by other virtual reality systems and can be constructed from currently available technology. Suspension of disbelief and viewer-centered perspective, are often used to describe such systems."
C. Cruz-Neira, D.J. Sandin, T.A. DeFanti, R.V. Kenyon, J.C. Hart. “The Cave”. Communications of the ACM, June 1992, Vol.35, No.6.