Former: academic positions, Purdue University, University of Wisconsin and University of Padua; Director, Computer and Computation Research Division, National Science Foundation; first Chief Technology Officer, Hewlett-Packard. With Georgia Institute of Technology: former John P. Imlay Dean of Computing; currently, Distinguished Professor of Computing and Professor of Management and Director, Center for 21st Century Universities. Chief Scientist, Qatar Computing Research Institute. Author of more than 100 articles, books and patents.