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John Leroy Hennessy (born September 22, 1952) is an American computer scientist who is chairman of Alphabet Inc. (Google). [8] 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.
The DLX (pronounced "Deluxe") is a RISC processor architecture designed by John L. Hennessy and David A. Patterson, the principal designers of the Stanford MIPS and the Berkeley RISC designs (respectively), the two benchmark examples of RISC design (named after the Berkeley design).
Stanford DASH was a cache coherent multiprocessor developed in the late 1980s by a group led by Anoop Gupta, John L. Hennessy, Mark Horowitz, and Monica S. Lam at Stanford University. [1] It was based on adding a pair of directory boards designed at Stanford to up to 16 SGI IRIS 4D Power Series machines and then cabling the systems in a mesh ...
As of 2018, 99% of all new chips use a RISC architecture. [10] [11] He is also noted for leading the research on redundant arrays of inexpensive disks storage, with Randy Katz. [12] His books on computer architecture, co-authored with John L. Hennessy, are widely used in computer science education.
MMIX (pronounced em-mix) is a 64-bit reduced instruction set computing (RISC) architecture designed by Donald Knuth, with significant contributions by John L. Hennessy (who contributed to the design of the MIPS architecture) and Richard L. Sites (who was an architect of the Alpha architecture).
MIPS, an acronym for Microprocessor without Interlocked Pipeline Stages, was a research project conducted by John L. Hennessy at Stanford University between 1981 and 1984. . MIPS investigated a type of instruction set architecture (ISA) now called reduced instruction set computer (RISC), its implementation as a microprocessor with very large scale integration (VLSI) semiconductor technology ...
In 2022 Steve Furber, John L. Hennessy, David A. Patterson and Sophie M. Wilson were awarded the Charles Stark Draper Prize by the United States National Academy of Engineering for their contributions to the invention, development, and implementation of reduced instruction set computer (RISC) chips. [70] [71]
The first documented computer architecture was in the correspondence between Charles Babbage and Ada Lovelace, describing the analytical engine.While building the computer Z1 in 1936, Konrad Zuse described in two patent applications for his future projects that machine instructions could be stored in the same storage used for data, i.e., the stored-program concept.