Bachelor of Science, Master of Science, Massachusetts Institute of Technology, 1957; Doctor of Science, Massachusetts Institute of Technology, 1961.
Research staff member, International Business Machines Corporation Research Center, Yorktown Heights, New York, 1961-1989; associate editor, International Business Machines Corporation Journal Research and Development, Yorktown Heights, since 1989.
Member Institute of Electrical and Electronics Engineers, International Federation Information Processing (individual member, Silver Core award 1977).
Married Annelise Kjaer, December 20, 1969. Children: Helen Elisabeth, Erik Michael.