Department of Electrical Engineering: Assistant 1945-1947; Lecturer 1964-1987; Radiation Laboratory, staff member 1943-1945; Servomechanisms Laboratory, graduate assistant 1945-1947; Staff member 1947-1955; Executive Officer 1955-1959; Electronic System Laboratory: Assistant Director 1959--1967; Deputy Director, Laboratory for Information and Decision Systems (LIDS) 1967-1973; Director 1973-1987.
