The authors argue that the word "Supercomputer" can only be defined in relation to a changing landscape and that the device can be considered the most powerful computer available at any time. They offer some statistics about supercomputers and discuss the potential impact of the supercomputer on space research, weather, animation, and other branches of business and science. The appendix contains a listing of supercomputer locations in the United States. ISBN 0-15-186787-9: $19.95.