Professor David H. Schaefer retired and was awarded the title, Emeritus Associate Professor in 1996. He joined George Mason University in 1981 as an Associate Professor of Electrical and Computer Engineering. Previous to joining George Mason, he was Head of the Computer Development Section at NASA's Goddard Space Flight Center. There he managed a program to develop advanced methods of processing data on board spacecraft, and he initiated and managed the program to build the Massively Parallel Processor (MPP), the first U.S. massively parallel computer. The MPP is a SIMD computer with 16,384 processing elements. This computer is now a part of the collection of the Smithsonian Institution. He is the author or co-author of over 30 journal and proceedings papers, has articles in seven books, and holds twelve patents for computer-related inventions. His major research interest is in the field of advanced nontraditional computer architectures. He continues to teach and has research interests that involve the investigation of Petri net modeling of computers. Professor Schaefer received the B.S. in physics from Tulane University in 1949.