sentences:  From 1986 to 1997 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.During his MIT times he claims to have collaborated on developing design of Cray T3D and Cray T3E supercomputers.He became the Willard R. and Inez Kerr Bell Professor in the Stanford University School of Engineering and chairman of the computer science department at Stanford.