John L. Hennessy
|John Leroy Hennessy|
|Born||1953 (age 59–60)|
|Alma mater||State University of New York at Stony Brook
|Thesis||A real-time language for small processors: design, definition and implementation (1977)|
|Known for||MIPS Technologies|
John LeRoy Hennessy (born 1953) is an American computer scientist, academician, and businessman. Hennessy is one of the founders of MIPS Computer Systems Inc. and is the 10th President of Stanford University. Marc Andreessen called him "the godfather of Silicon Valley."
Early life and career 
He earned his bachelor's degree in electrical engineering from Villanova University, and his master's degree and Ph.D. in computer science from the State University of New York at Stony Brook. He is married to his high school sweetheart, Andrea Berti.
Hennessy became a Stanford faculty member in 1977. In 1984, he used his sabbatical year to found MIPS Computer Systems Inc. to commercialize his research in RISC processors. In 1987, he became the Willard and Inez Kerr Bell Endowed Professor of Electrical Engineering and Computer Science.
Hennessy served as director of Stanford's Computer System Laboratory (1989–1993), a research center run by Stanford's Electrical Engineering and Computer Science departments. He was chair of the Department of Computer Science (1994–1996) and Dean of the School of Engineering (1996–1999).
In 1999, Stanford President Gerhard Casper appointed Hennessy to succeed Condoleezza Rice as Provost of Stanford University. When Casper stepped down to focus on teaching in 2000, the Stanford Board of Trustees named Hennessy to succeed Casper as president. In 2008, Hennessy earned a salary of $1,091,589 ($702,771 base pay, $259,592 deferred benefits, $129,226 nontax benefits), the 23rd highest among all American university presidents.
In 2007, he was made a Fellow of the Computer History Museum "for fundamental contributions to engineering education, advances in computer architecture, and the integration of leading-edge research with education."
In December 2010, Hennessy coauthored an editorial with Harvard University President Drew Gilpin Faust urging the passage of the DREAM Act; the legislation did not pass the 111th United States Congress.
In 2012, Hennessy was awarded the IEEE Medal of Honor. The IEEE awarded Hennessy their highest recognition "for pioneering the RISC processor architecture and for leadership in computer engineering and higher education." In 2012, Hennessy received an honorary doctor of mathematics degree from the University of Waterloo (Canada), in celebration of his profound contributions to modern computer architecture and to post-secondary education.
Hennessy has a history of strong interest and involvement in college-level computer education. He co-authored, with David A. Patterson, two well-known books on computer architecture, Computer Organization and Design: the Hardware/Software Interface and Computer Architecture: A Quantitative Approach, which introduced the DLX RISC architecture. They have been widely used as textbooks for graduate and undergraduate courses since 1990.
Hennessy also contributed to updating Donald Knuth's MIX processor to the MMIX. Both are model computers used in Knuth's classic series, The Art of Computer Programming. MMIX is Knuth's DLX equivalent.
Noted publications 
- Computer Architecture: A Quantitative Approach
- Patterson, David A.; Hennessy, John L. Computer Organization and Design: The Hardware/software Interface. Morgan Kaufmann. ISBN 0-12-370606-8.
- Gharachorloo, Kourosh; D. Lenoski, J. Laudon, P. Gibbons, A. Gupta, J. Hennessy (1990). "Memory consistency and event ordering in scalable shared-memory multiprocessors". Proceedings of the 17th annual international symposium on Computer Architecture. International Symposium on Computer Architecture. pp. 15–26.
- Lenoski, Daniel; J. Laudon, K. Gharachorloo, A. Gupta, J. Hennessy (1990). "The directory-based cache coherence protocol for the DASH multiprocessor". Proceedings of the 17th annual international symposium on Computer Architecture. International Symposium on Computer Architecture. pp. 148–159.
- Patterson, David; Hennessy, John H.; Arpaci-Dusseau, Andrea C. (2007). Computer architecture: a quantitative approach. San Diego: Morgan Kaufmann. ISBN 0-12-370490-1.
- Auletta, Ken (April 30, 2012). "Get Rich U.". The New Yorker. Archived from the original on 6 April 2013. Retrieved 6 April 2013.
- "Curriculum Vitae". Office of the President. NA. Retrieved April 26, 2011.
- "Million-Dollar College Presidents". The Daily Beast. November 14, 2010. Retrieved April 26, 2011.
- "ACM Fellows - H". Association for Computing Machinery. NA. Retrieved April 26, 2011.
- "Board of Directors". Google Investor Relations. NA. Retrieved June 14, 2012.
- "Governing Board". Cisco Systems.
- "Governing Board". Atheros Communications.
- "The Daniel Pearl Foundation.". About the Daniel Pearl Foundation.
- "John Hennessy". Computer History Museum. Retrieved 2013-05-23.
- "President Hennessy salutes the Dalai Lama, and is honored in return". Stanford University Report. October 14, 2010. Retrieved April 26, 2011.
- "Deserving of the DREAM". Politico. December 8, 2010. Retrieved April 26, 2011.
- "Stanford President Hennessy wins IEEE's highest honor".
- "IEEE Medal of Honor Recipients".
- Official Biography from the Office of the President of Stanford University
- The Secret of Silicon Valley, John Hennessy speaks at Stanford
- Interview with John Hennessy
|Provost of Stanford University
|President of Stanford University