David C. Evans (computer Scientist)
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David Cannon Evans (February 24, 1924 – October 3, 1998) was the founder of the
computer science Computer science is the study of computation, information, and automation. Computer science spans Theoretical computer science, theoretical disciplines (such as algorithms, theory of computation, and information theory) to Applied science, ...
department at the
University of Utah The University of Utah (the U, U of U, or simply Utah) is a public university, public research university in Salt Lake City, Utah, United States. It was established in 1850 as the University of Deseret (Book of Mormon), Deseret by the General A ...
and co-founder (with
Ivan Sutherland Ivan Edward Sutherland (born May 16, 1938) is an American computer scientist and Internet pioneer, widely regarded as a pioneer of computer graphics. His early work in computer graphics as well as his teaching with David C. Evans in that subje ...
) of
Evans & Sutherland Evans & Sutherland is an American computer graphics firm founded in 1968 by David C. Evans (computer scientist), David Evans and Ivan Sutherland. Its current products are used in digital projection environments like planetariums. Its simulation b ...
, a pioneering firm in computer graphics hardware.


Biography

Evans was born in
Salt Lake City Salt Lake City, often shortened to Salt Lake or SLC, is the capital and most populous city of the U.S. state of Utah. It is the county seat of Salt Lake County, the most populous county in the state. The city is the core of the Salt Lake Ci ...
. He attended the University of Utah and studied electrical engineering; he earned his Bachelor of Science in Physics in 1949 and his Doctorate in Physics in 1953. Evans first worked at the Bendix aviation electronics company, where he acted as project manager in 1955 to develop what some describe as an early
personal computer A personal computer, commonly referred to as PC or computer, is a computer designed for individual use. It is typically used for tasks such as Word processor, word processing, web browser, internet browsing, email, multimedia playback, and PC ...
that ran on an interpretive operating system. The
Bendix G-15 The Bendix G-15 is a computer introduced in 1956 by the Bendix Corporation, Computer Division, Los Angeles, California. It is about and weighs about . The G-15 has a drum memory of 2,160 29-bit words, along with 20 words used for special purpos ...
was a bulky unit about the size of a two-door refrigerator. He stayed with the company just long enough to manage the G-20 project. Evans became a faculty member of the
University of California, Berkeley The University of California, Berkeley (UC Berkeley, Berkeley, Cal, or California), is a Public university, public Land-grant university, land-grant research university in Berkeley, California, United States. Founded in 1868 and named after t ...
. His first important work with graphics dates from that period, when he did several experiments on an IDIOM display hooked up to a
Digital Equipment Corporation Digital Equipment Corporation (DEC ), using the trademark Digital, was a major American company in the computer industry from the 1960s to the 1990s. The company was co-founded by Ken Olsen and Harlan Anderson in 1957. Olsen was president until ...
PDP PDP may refer to: Computing and technology * Packet Data Protocol in wireless GPRS/HSDPA networks * Parallel distributed processing in Connectionism#Parallel distributed processing, connectionism * Plasma display panel * Policy Decision Point in t ...
-5. In 1963, he was co- Principal Investigator (with Harry Huskey) for project Genie to produce an early multi-user
timesharing In computing, time-sharing is the concurrent sharing of a computing resource among many tasks or users by giving each task or user a small slice of processing time. This quick switch between tasks or users gives the illusion of simultaneous ...
system. Students from this period include
Butler Lampson Butler W. Lampson (born December 23, 1943) is an American computer scientist best known for his contributions to the development and implementation of distributed personal computing. Education and early life After graduating from the Lawrencev ...
and
L. Peter Deutsch L Peter Deutsch (born Laurence Peter Deutsch on August 7, 1946, in Boston, Massachusetts) is an American computer scientist and composer. He is the founder of Aladdin Enterprises and creator of Ghostscript, a free software PostScript and PDF int ...
. The system, which included key developments in the field of
virtual memory In computing, virtual memory, or virtual storage, is a memory management technique that provides an "idealized abstraction of the storage resources that are actually available on a given machine" which "creates the illusion to users of a ver ...
, was sponsored by the US Defense Department's
Advanced Research Projects Agency The Defense Advanced Research Projects Agency (DARPA) is a research and development agency of the United States Department of Defense responsible for the development of emerging technologies for use by the military. Originally known as the Adva ...
. In 1965, the University of Utah recruited him back to start their own computer science department. When he was building up the University of Utah department in 1968 he managed to convince
Ivan Sutherland Ivan Edward Sutherland (born May 16, 1938) is an American computer scientist and Internet pioneer, widely regarded as a pioneer of computer graphics. His early work in computer graphics as well as his teaching with David C. Evans in that subje ...
(who had funded Evans' DARPA research) to come to
Utah Utah is a landlocked state in the Mountain states, Mountain West subregion of the Western United States. It is one of the Four Corners states, sharing a border with Arizona, Colorado, and New Mexico. It also borders Wyoming to the northea ...
, accepting the condition that they start a computer graphics company together. Evans retired from the company in 1994. Evans's students at Utah included
Alan Kay Alan Curtis Kay (born May 17, 1940) published by the Association for Computing Machinery 2012 is an American computer scientist who pioneered work on object-oriented programming and windowing graphical user interface (GUI) design. At Xerox ...
,
Edwin Catmull Edwin Earl Catmull (born March 31, 1945) is an American computer scientist and animator who served as the co-founder of Pixar and the President of Walt Disney Animation Studios. He has been honored for his contributions to 3D computer graphics, ...
,
James H. Clark James Henry Clark (born March 23, 1944) is an American entrepreneur and computer scientist. He founded several notable Silicon Valley technology companies, including Silicon Graphics, Netscape, myCFO, and Healtheon. His research work in compu ...
,
John Warnock John Edward Warnock (October 6, 1940 – August 19, 2023) was an American computer scientist, inventor, technology businessman, and philanthropist best known for co-founding Adobe Systems Inc., the graphics and publishing software company, wit ...
, Alan Ashton, Frank Crow,
Jim Blinn James F. Blinn (born 1949) is an American computer scientist who first became widely known for his work as a computer graphics expert at NASA's Jet Propulsion Laboratory (JPL), particularly his work on the pre-encounter animations for the Voyag ...
,
Bui Tuong Phong Bui Tuong Phong (December 14, 1942July 1975) was a Vietnamese-born computer graphics researcher and pioneer. He invented the widely used Phong shading algorithm and Phong reflection model. Life Phong was born in Hanoi. After attending the Lyc� ...
, Gary Hodgman, and Henri Gouraud. Evans was a member of
the Church of Jesus Christ of Latter-day Saints The Church of Jesus Christ of Latter-day Saints, informally known as the LDS Church or Mormon Church, is a Nontrinitarianism, nontrinitarian Restorationism, restorationist Christianity, Christian Christian denomination, denomination and the ...
(LDS Church). He served as a
branch president A branch president is a leader of a "branch" congregation of the Church of Jesus Christ of Latter-day Saints (LDS Church). The calling of branch president is very similar to the calling of bishop, except that instead of presiding over a ward, th ...
, a counselor in
bishoprics In church governance, a diocese or bishopric is the ecclesiastical district under the jurisdiction of a bishop. History In the later organization of the Roman Empire, the increasingly subdivided provinces were administratively associated ...
and stake presidencies, and as a scout master for a total of 27 years.''
Church News The ''Church News'' (formerly ''LDS Church News'') is a multi-platform supplement and subdivision of the ''Deseret News'', a Salt Lake City, Utah newspaper owned by the Church of Jesus Christ of Latter-day Saints (informally, the LDS Church). ...
'', October 26, 1996.
Evans was awarded the Silver Beaver for his role in scouting. Evans married Joy Frewin. They had ten children, only seven of which lived to adulthood. One of these is David F. Evans, who became a general authority in the LDS Church. From 1984 to 1990, Joy Evans was a counselor in the general presidency of the
Relief Society The Relief Society is a philanthropic and educational women's organization of the Church of Jesus Christ of Latter-day Saints (LDS Church). It was founded in 1842 in Nauvoo, Illinois, United States, and has more than 7 million members in over 1 ...
to Barbara W. Winder. At the time of his death on October 12, 1998, Evans had 39 living grandchildren and great grandchildren. In 1996,
Brigham Young University Brigham Young University (BYU) is a Private education, private research university in Provo, Utah, United States. It was founded in 1875 by religious leader Brigham Young and is the flagship university of the Church Educational System sponsore ...
established the David C. Evans Chair of Computer Engineering and Graphics. Evans was at the ceremony where the founding of a chair in his honor was announced, but due to his suffering from
Alzheimer's disease Alzheimer's disease (AD) is a neurodegenerative disease and the cause of 60–70% of cases of dementia. The most common early symptom is difficulty in remembering recent events. As the disease advances, symptoms can include problems wit ...
, did not make any remarks at the ceremony.


References


External links

* {{DEFAULTSORT:Evans, David C. American computer scientists Latter Day Saints from California 20th-century American educators Computer graphics professionals University of Utah faculty University of Utah alumni University of California, Berkeley faculty Bendix Corporation people 1924 births 1998 deaths Scientists from Salt Lake City Latter Day Saints from Utah