Tom DeFanti (born 1948) is an American computer graphics researcher who wrote the GRASS language at Ohio State. In 1973 he cofounded the Electronic Visualization Laboratory at the University of Illinois Chicago with Dan Sandin, where they later developed the CAVE.
We co-opted it at SIGGRAPH and used it to describe something that was a combination of computer graphics, image processing and science.
Tom DeFanti, Tom DeFanti and Dan Sandin on Playing Images
GRASS was the original language Tom DeFanti wrote for the mini computer and the Vector General, which was a large interactive vector display for real-time animation in the '70s.
Larry Cuba, Larry Cuba on Choreographing Form