John L. Hennessy

John Hennessy
John Hennessy
	Hennessy at Stanford, June 2007
10th President of Stanford University
	In office; September 1, 2000 – August 31, 2016
Preceded by	Gerhard Casper
Succeeded by	Marc Tessier-Lavigne
11th Provost of Stanford University
	In office; July 1999 – September 2000
Preceded by	Condoleezza Rice
Succeeded by	John Etchemendy
Personal details
Born	John Leroy Hennessy; September 22, 1952; Huntington, New York, U.S.
Alma mater	Villanova University (BS); Stony Brook University (MS, PhD);
Known for	Reduced instruction set computer; MIPS Technologies; Atheros
Awards	Charles Stark Draper Prize (2022); Turing Award (2017); BBVA Foundation Frontiers of Knowledge Award (2020); Clark Kerr Award (2020); IEEE Medal of Honor (2012); Member of the National Academy of Sciences (2002); Fellow of the American Academy of Arts and Sciences; ACM Fellow (1997); Fellow of the Royal Academy of Engineering (2017);
	Scientific career
Fields	Computer architecture
Thesis	A real-time language for small processors: design, definition and implementation (1977)
Doctoral advisor	Richard Kieburtz
Doctoral students	Anant Agarwal; Lawrence Paulson; Josep Torrellas; Norman Jouppi;
Website	hennessy.stanford.edu

John Leroy Hennessy (born September 22, 1952) is an American computer scientist who is chairperson of Alphabet Inc. (Google). Hennessy is one of the founders of MIPS Technologies and Atheros, and also the tenth President of Stanford University. Hennessy announced that he would step down in the summer of 2016. He was succeeded as president by Marc Tessier-Lavigne. Marc Andreessen called him "the godfather of Silicon Valley."

Along with David Patterson, Hennessy was a recipient of the 2017 Turing Award for their work in developing the reduced instruction set computer (RISC) architecture, which is now used in 99% of new computer chips.

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