William James "Bill" Dally is the Willard R. and Inez Kerr Bell Professor in the
Stanford University School of Engineering and past Chairman of the Computer Science Department at
Stanford. Previously he taught at
MIT where he and his group built the
J–Machine and the M–Machine, parallel machines emphasizing low overhead synchronization and communication. Prior to that, at Bell Telephone Laboratories he contributed to the design of the BELLMAC32, an early 32-bit microprocessor, and designed the MARS hardware accelerator.