John L. Hennessy

John L. Hennessy
Hennessy in 2024
10th President of Stanford University
In office
September 1, 2000  August 31, 2016
Preceded byGerhard Casper
Succeeded byMarc Tessier-Lavigne
11th Provost of Stanford University
In office
July 1999  September 2000
Preceded byCondoleezza Rice
Succeeded byJohn Etchemendy
Personal details
Born
John Leroy Hennessy

(1952-09-22) September 22, 1952
Huntington, New York, U.S.
EducationVillanova University (BS)
Stony Brook University (MS, PhD)
Known forReduced instruction set computer
MIPS Technologies
Atheros
Awards
Scientific career
FieldsComputer architecture
ThesisA real-time language for small processors: design, definition and implementation (1977)
Doctoral advisorRichard Kieburtz
Doctoral students
Websitehennessy.stanford.edu

John Leroy Hennessy (born 22 September, 1952) is an American computer scientist and chairman of Alphabet Inc. Hennessy is one of the founders of MIPS Technologies and Atheros, serving as 10th president of Stanford University from 2000 to 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.