A Professor at the University of Minnesota, where he holds the William Norris Endowed Chair in the Department of Computer Science and Engineering. B.E. degree in Electronics & Communication Engineering from Indian Institute of Technology Roorkee (formerly, University of Roorkee), India, in 1977. M.E. degree in Electronics Engineering from Philips International Institute, Eindhoven, Netherlands, in 1979. Ph.D. degree in Computer Science from University of Maryland, College Park, in 1982