David Hartley (computer scientist)
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David Fielding Hartley FBCS (born 14 September 1937) is a
computer scientist A computer scientist is a person who is trained in the academic study of computer science. Computer scientists typically work on the theoretical side of computation, as opposed to the hardware side on which computer engineers mainly focus (a ...
and
Fellow A fellow is a concept whose exact meaning depends on context. In learned or professional societies, it refers to a privileged member who is specially elected in recognition of their work and achievements. Within the context of higher education ...
of
Clare College, Cambridge Clare College is a constituent college of the University of Cambridge in Cambridge, England. The college was founded in 1326 as University Hall, making it the second-oldest surviving college of the University after Peterhouse. It was refound ...
. He was Director of the
University of Cambridge Computing Service The University of Cambridge Computing Service provided computing facilities across the University of Cambridge between 1970 and 2014. It was located primarily on the New Museums Site, Free School Lane, in the centre of Cambridge, England but ...
from 1970–1994, Chief Executive of United Kingdom Joint Academic Network (JANET) 1994–1997, and Executive Director of
Cambridge Crystallographic Data Centre The Cambridge Crystallographic Data Centre (CCDC) is a non-profit organisation based in Cambridge, England. Its primary activity is the compilation and maintenance of the Cambridge Structural Database, a database of small molecule crystal str ...
(CCDC) 1997–2002. He is now much involved with the National Museum of Computing. He was involved in the development of the programming language CPL, whose influence can be traced on to C, and
C++ C++ (pronounced "C plus plus") is a high-level general-purpose programming language created by Danish computer scientist Bjarne Stroustrup as an extension of the C programming language, or "C with Classes". The language has expanded significan ...
. He was president of the
British Computer Society Sir Maurice Wilkes served as the first President of BCS in 1957 BCS, The Chartered Institute for IT, known as the British Computer Society until 2009, is a professional body and a learned society that represents those working in inf ...
from 1999 to 2000 and chairman of the
Computer Conservation Society The Computer Conservation Society (CCS) is a British organisation, founded in 1989. It is under the joint umbrella of the British Computer Society (BCS), the London Science Museum and the Manchester Museum of Science and Industry. Overview The ...
from 2007 to 2011.


Student years

Dr Hartley became an undergraduate at
Clare College Clare College is a constituent college of the University of Cambridge in Cambridge, England. The college was founded in 1326 as University Hall, making it the second-oldest surviving college of the University after Peterhouse. It was refound ...
,
University of Cambridge , mottoeng = Literal: From here, light and sacred draughts. Non literal: From this place, we gain enlightenment and precious knowledge. , established = , other_name = The Chancellor, Masters and Schola ...
in 1956. He read Mathematics for the first two years and studied Numerical Analysis and Automatic Computing in his third year, graduating BA in 1959. He then became a research student of
computer science Computer science is the study of computation, automation, and information. Computer science spans theoretical disciplines (such as algorithms, theory of computation, information theory, and automation) to Applied science, practical discipli ...
, developing the first programming language " Autocode", and its compiler for the EDSAC 2 computer, for which he was awarded a PhD degree in 1963. His thesis was entitled "Automatic Programming for Digital Computers".


Software development

As a member of the staff of Cambridge University's Mathematical Laboratory, he was joint author, with David Barron, John Buxton, Eric Nixon, and
Christopher Strachey Christopher S. Strachey (; 16 November 1916 – 18 May 1975) was a British computer scientist. He was one of the founders of denotational semantics, and a pioneer in programming language design and computer time-sharing.F. J. Corbató, et al. ...
, of the early high-level programming language CPL. which was subsequently developed into
BCPL BCPL ("Basic Combined Programming Language") is a procedural, imperative, and structured programming language. Originally intended for writing compilers for other languages, BCPL is no longer in common use. However, its influence is still ...
which in turn influenced B and C. From 1962 to 1967 he was a major contributor to the development of the Cambridge Multiple Access System that was developed for the
Titan Titan most often refers to: * Titan (moon), the largest moon of Saturn * Titans, a race of deities in Greek mythology Titan or Titans may also refer to: Arts and entertainment Fictional entities Fictional locations * Titan in fiction, fictiona ...
, the prototype
Atlas An atlas is a collection of maps; it is typically a bundle of maps of Earth or of a region of Earth. Atlases have traditionally been bound into book form, but today many atlases are in multimedia formats. In addition to presenting geogra ...
2 computer built by
Ferranti Ferranti or Ferranti International plc was a UK electrical engineering and equipment firm that operated for over a century from 1885 until it went bankrupt in 1993. The company was once a constituent of the FTSE 100 Index. The firm was known ...
for the university. This was the first
time-sharing In computing, time-sharing is the sharing of a computing resource among many users at the same time by means of multiprogramming and multi-tasking.DEC Timesharing (1965), by Peter Clark, The DEC Professional, Volume 1, Number 1 Its emergence ...
system developed outside the United States, and it influenced the later development of
UNIX Unix (; trademarked as UNIX) is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, whose development started in 1969 at the Bell Labs research center by Ken Thompson, Dennis Ritchie, ...
. Hartley was successively Junior
Research Fellow A research fellow is an academic research position at a university or a similar research institution, usually for academic staff or faculty members. A research fellow may act either as an independent investigator or under the supervision of a pr ...
at
Churchill College, Cambridge Churchill College is a constituent college of the University of Cambridge, England. It has a primary focus on science, engineering and technology, but still retains a strong interest in the arts and humanities. In 1958, a trust was establis ...
, Fellow of Darwin College and then
University Lecturer Lecturer is an academic rank within many universities, though the meaning of the term varies somewhat from country to country. It generally denotes an academic expert who is hired to teach on a full- or part-time basis. They may also conduct res ...
. He also did some pioneering work in video-tape recorded lecturers. In 1986, he was elected a Fellow of Clare College where he is currently secretary of the Alumni Association.


Computing service

Between 1970 and 1994, Dr Hartley was director of
University of Cambridge Computing Service The University of Cambridge Computing Service provided computing facilities across the University of Cambridge between 1970 and 2014. It was located primarily on the New Museums Site, Free School Lane, in the centre of Cambridge, England but ...
. The service had been founded as the Mathematical Laboratory under the leadership of
John Lennard-Jones Sir John Edward Lennard-Jones (27 October 1894 – 1 November 1954) was a British mathematician and professor of theoretical physics at the University of Bristol, and then of theoretical science at the University of Cambridge. He was an im ...
in 1937, although it did not become properly established until after
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the World War II by country, vast majority of the world's countries—including all of the great power ...
when
Maurice Wilkes Sir Maurice Vincent Wilkes (26 June 1913 – 29 November 2010) was a British computer scientist who designed and helped build the Electronic Delay Storage Automatic Calculator (EDSAC), one of the earliest stored program computers, and who i ...
became Director. Upon its foundation, it was intended ''"to provide a computing service for general use, and to be a centre for the development of computational techniques in the University"'' and Wilkes continued this strong service ethos. He learnt about electronic computation, reading
John von Neumann John von Neumann (; hu, Neumann János Lajos, ; December 28, 1903 – February 8, 1957) was a Hungarian-American mathematician, physicist, computer scientist, engineer and polymath. He was regarded as having perhaps the widest c ...
's
First Draft of a Report on the EDVAC The ''First Draft of a Report on the EDVAC'' (commonly shortened to ''First Draft'') is an incomplete 101-page document written by John von Neumann and distributed on June 30, 1945 by Herman Goldstine, security officer on the classified ENIAC pro ...
and attending the final two weeks of the
Moore School Lectures ''Theory and Techniques for Design of Electronic Digital Computers'' (popularly called the "Moore School Lectures") was a course in the construction of electronic digital computers held at the University of Pennsylvania's Moore School of Electrical ...
.
EDSAC The Electronic Delay Storage Automatic Calculator (EDSAC) was an early British computer. Inspired by John von Neumann's seminal '' First Draft of a Report on the EDVAC'', the machine was constructed by Maurice Wilkes and his team at the Univer ...
was the result, and Wilkes also supervised Hartley's PhD. When Dr Hartley became Director, the Mathematical Laboratory was renamed the Computer Laboratory, with separate departments for Teaching and Research, and the Computing Service. One of Dr Hartley' most notable achievements as Director between 1987 and 1992, was to conceive and design the Granta Backbone Network, a
fibre-optic network Fiber-optic communication is a method of transmitting information from one place to another by sending pulses of infrared light through an optical fiber. The light is a form of carrier wave that is modulated to carry information. Fiber is pref ...
that joined up all of Cambridge's university and college sites.


Public service

From 1972 to 1974 Dr Hartley was chairman of the UK Inter-University Committee on Computing. He was a member of the Computer Board for Universities and Research Councils – which allocated government funds to purchase the large and expensive computers that the institutions needed – from 1979 to 1983 where he had special responsibility for network development. From 1981 to 1986 he was a member of the Prime Minister's Information Technology Advisory Panel. Having become a Fellow of the
British Computer Society Sir Maurice Wilkes served as the first President of BCS in 1957 BCS, The Chartered Institute for IT, known as the British Computer Society until 2009, is a professional body and a learned society that represents those working in inf ...
(FBCS) in 1968, Dr Hartley served on its Council in 1970–73, 1977–1980 and 1988 to 1990, was a Vice-President from 1987 to 1990, Deputy President in 1998–99 and President in 1999–2000. Since ceasing to be Director of the University Computing Service, Dr Hartley has served both private sector and public sector bodies, but the latter have predominated. From 1994 to 1997 he was Chief Executive of the United Kingdom Education and Research Networking Association (UKERNA) whose objectives were to take responsibility for the UK academic community's networking programme, and to further opportunities with other communities, including industry. It developed
JANET Janet may refer to: Names * Janet (given name) * Janet (French singer) (1939–2011) Surname * Charles Janet (1849–1932), French engineer, inventor and biologist, known for the Left Step periodic table * Jules Janet (1861–1945), French psych ...
, the UK's joint academic network, which provides computer network and related collaborative services to UK education and research, including further- and higher-education organisations and the
UK Research Councils Research Councils UK, sometimes known as RCUK, was a non-departmental public body which coordinated science policy in the United Kingdom from 2002 to 2018. It was an umbrella organisation that coordinated the seven separate research councils t ...
. From 1997 to 2002, Dr Hartley was Executive Director of the
Cambridge Crystallographic Data Centre The Cambridge Crystallographic Data Centre (CCDC) is a non-profit organisation based in Cambridge, England. Its primary activity is the compilation and maintenance of the Cambridge Structural Database, a database of small molecule crystal str ...
which maintains the largest searchable database of experimentally-determined small molecule crystal structures. It performs analyses on these data and facilitates others' use. Dr Hartley maintains strong ties with the University of Cambridge where he continues to be a Fellow of Clare College and an Honorary Member of the Computer Laboratory. He has recently become involved in the history of computing, serving for four years as Chairman of the Computer Conservation Society, a special-interest group of the British Computer Society. In 2012 he spent a year as part-time Museum Director of
The National Museum of Computing The National Museum of Computing is a museum in the United Kingdom dedicated to collecting and restoring historic computer systems. The museum is based in rented premises at Bletchley Park in Milton Keynes, Buckinghamshire and opened in 2007. ...
and is currently a trustee of the
EDSAC The Electronic Delay Storage Automatic Calculator (EDSAC) was an early British computer. Inspired by John von Neumann's seminal '' First Draft of a Report on the EDVAC'', the machine was constructed by Maurice Wilkes and his team at the Univer ...
Replica Project.


Citations


External links


Interviewed by Alan Macfarlane 2 May 2017 (video)


Sources

* * {{DEFAULTSORT:Hartley, David 1937 births Living people People from Halifax, West Yorkshire Alumni of Clare College, Cambridge English computer scientists British software engineers Members of the University of Cambridge Computer Laboratory Fellows of Clare College, Cambridge Fellows of the British Computer Society