This overview summarizes the revolutionary changes that are occurring in me
dicine today and looks beyond medicine to the other disciplines of science
that contribute to the overall revolution of the Information Age. The conce
pt of "information equivalent," representing real objects within a computer
as information, is explained. The application of today's emerging informat
ion technologies is divided into the components of patient care-diagnosis,
consultation, treatment, and education-and illustrations are given of how i
nformation sciences are changing the practice of surgery.