List of pioneers in computer science


This article presents a list of individuals who made transformative breakthroughs in the creation, development and imagining of what computers could do.

Pioneers

Achievement
date
PersonAchievement
830~Al-KhwarizmiThe term "algorithm" is derived from the algorism, the technique of performing arithmetic with Hindu–Arabic numerals popularised by al-Khwarizmi in his book On the Calculation with Hindu Numerals.
1944Aiken, HowardConceived and codesigned the Harvard Mark I.
1970, 1989Allen, Frances E.Developed bit vector notation and program control flow graphs. Became the first female IBM Fellow in 1989. In 2006, she became the first female recipient of the ACM's Turing Award.
1939Atanasoff, JohnBuilt the first electronic digital computer, the Atanasoff–Berry Computer, though it was neither programmable nor Turing-complete.
1822, 1837Babbage, CharlesOriginated the concept of a programmable general-purpose computer. Designed the Analytical Engine and built a prototype for a less powerful mechanical calculator.
1954, 1963Backus, JohnLed the team that created FORTRAN, the first practical high-level programming language, and he formulated the Backus–Naur form that described the formal language syntax.
1964Baran, PaulOne of two independent inventors of the concept of digital packet switching used in modern computer networking including the Internet. Baran published a series of briefings and papers about dividing information into “message blocks” and sending it over distributed networks between 1960-64.
1874Baudot, ÉmileA French telegraphic engineer patents the Baudot code, the first means of digital communication. The modem speed unit baud is named after him.
1989, 1990Berners-Lee, TimInvented World Wide Web. With Robert Cailliau, sent first HTTP communication between client and server.
1966Böhm, CorradoTheorized of the concept of structured programming.
1847, 1854Boole, GeorgeFormalized Boolean algebra, the basis for digital logic and computer science.
1947Booth, KathleenInvented the first assembly language.
1969, 1978Brinch Hansen, PerDeveloped the RC 4000 multiprogramming system which introduced the concept of an operating system kernel and the separation of policy and mechanism, effectively the first microkernel architecture. Co-developed the monitor with Tony Hoare, and created the first monitor implementation. Implemented the first form of remote procedure call in the RC 4000, and was first to propose remote procedure calls as a structuring concept for distributed computing.
1959, 1995Brooks, FredManager of IBM System/360 and OS/360 projects; author of The Mythical Man-Month.
1908Brouwer, Luitzen Egbertus JanFounded intuitionistic logic which later came to prevalent use in proof assistants.
1930Bush, VannevarAnalogue computing pioneer. Originator of the Memex concept, which led to the development of Hypertext.
1951Caminer, DavidWith John Pinkerton, developed the LEO computer, the first business computer, for J. Lyons and Co
1978Cerf, VintWith Bob Kahn, designed the Transmission Control Protocol and Internet Protocol, the primary data communication protocols of the Internet and other computer networks.
1956Chomsky, NoamMade contributions to computer science with his work in linguistics. He developed Chomsky hierarchy, a discovery which has directly impacted programming language theory and other branches of computer science.
1936Church, AlonzoFounded contributions to theoretical computer science, specifically for the development of the lambda calculus and the discovery of the undecidability problem within it.
1962Clark, Wesley A.Designed LINC, the first functional computer scaled down and priced for the individual user. Put in service in 1963, many of its features are seen as prototypes of what were to be essential elements of personal computers.
1981Clarke, Edmund M.Developed model checking and formal verification of software and hardware together with E. Allen Emerson.
1970Codd, Edgar F.Proposed and formalized the relational model of data management, the theoretical basis of relational databases.
1971Conway, LynnSuperscalar architecture with multiple-issue out-of-order dynamic instruction scheduling.
1967Cook, StephenFormalized the notion of NP-completeness, inspiring a great deal of research in computational complexity theory.
1965Cooley, JamesWith John W. Tukey, created the fast Fourier transform.
1965Davies, DonaldOne of two independent inventors of the concept of digital packet switching used in modern computer networking including the Internet. Davies conceived of and named the concept of packet switching in data communication networks in 1965.
1962Dahl, Ole-JohanWith Kristen Nygaard, invented the proto-object oriented language SIMULA.
1968Dijkstra, EdsgerMade advances in algorithms, pioneered and coined the term structured programming, invented the semaphore, and famously suggested that the GOTO statement should be considered harmful.
1918Eccles, William and Jordan, Frank WilfredBritish physicists patent the Eccles–Jordan trigger circuit. The so-called bistable flip-flop, this circuit is a building block of all digital memory cells. Built from Vacuum tubes, their concept was essential for the success of the Colossus codebreaking computer.
1943, 1951Eckert, J. PresperWith John Mauchly, designed and built the ENIAC, the first modern computer, and the UNIVAC I, the first commercially available computer.
1981Emerson, E. AllenDeveloped model checking and formal verification of software and hardware together with Edmund M. Clarke.
1963Engelbart, DouglasBest known for inventing the computer mouse ; as a pioneer of human–computer interaction whose Augment team developed hypertext, networked computers, and precursors to GUIs.
1973Thacker, Charles P.Pioneering design and realization of the Xerox Alto, the first modern personal computer, and in addition for his contributions to the Ethernet and the Tablet PC.
1971Faggin, FedericoDesigned the first commercial microprocessor.
1974Feinler, ElizabethHer team defined a simple text file format for Internet host names. The list evolved into the Domain Name System and her group became the naming authority for the top-level domains of.mil,.gov,.edu,.org, and.com.
1943Flowers, TommyDesigned and built the Mark 1 and the ten improved Mark 2 Colossus computers, the world's first programmable, digital, electronic, computing devices.
1994Floyd, SallyFounded the field of Active Queue Management and co-invented Random Early Detection which is used in almost all Internet routers.
1879Frege, GottlobExtended Aristotelian logic with first-order predicate calculus, independently of Charles Sanders Peirce, a crucial precursor in computability theory. Also relevant to early work on artificial intelligence, logic programming.
1880, 1898Sanders Peirce, CharlesProved the functional completeness of the NOR gate. Proposed the implementation of logic via electrical circuits, decades before Claude Shannon. Extended Aristotelian logic with first-order predicate calculus, independently of Gottlob Frege, a crucial precursor in computability theory. Also relevant to early work on artificial intelligence, logic programming.
1985Furber, Stephen
Sophie Wilson
Are known for their work on creating ARM 32bit RISC microprocessor.
1958, 1961, 1967Ginsburg, SeymourProved "don't-care" circuit minimization does not necessarily yield optimal results, proved that the ALGOL programming language is context-free, and invented AFL Theory.
1931Gödel, KurtProved that Peano arithmetic could not be both logically consistent and complete in first-order predicate calculus. Church, Kleene, and Turing developed the foundations of computation theory based on corollaries to Gödel's work.
1989Goldwasser, ShafiZero-knowledge proofs invented by Goldwasser, Micali and Rackoff. Goldwasser and Micali awarded the Turing Award in 2012 for this and other work.
2011Graham, Susan L.Awarded the 2009 IEEE John von Neumann Medal for "contributions to programming language design and implementation and for exemplary service to the discipline of computer science".
1953Gray, FrankPhysicist and researcher at Bell Labs, developed the reflected binary code or Gray code. Gray's methodologies are used for error detection and correction in digital communication systems, such as QAM in digital subscriber line networks.
1974, 2005Gray, JimInnovator in database systems and transaction processing implementation.
1986, 1990Grosz, BarbaraCreated the first computational model of discourse, which established the field of research and influenced language-processing technologies. Also developed SharedPlans model for collaboration in multi-agent systems.
1971Hamilton, MargaretDeveloped the concepts of asynchronous software, priority scheduling, end-to-end testing, and human-in-the-loop decision capability, such as priority displays which then became the foundation for ultra reliable software design.
1950Hamming, RichardCreated the mathematical field of error-correcting code, Hamming code, Hamming matrix, the Hamming window, Hamming numbers, sphere-packing, and the Hamming distance. He established concept of perfect code.
1972, 1973Thi, André Truong Trong and François GernelleInvention of the Micral N, the earliest commercial, non-kit personal computer based on a microprocessor.
1981, 1995, 1999Hejlsberg, AndersAuthor of Turbo Pascal while at Borland, the chief architect of Delphi, and designer and lead architect of C# at Microsoft.
2008, 2012Hinton, GeoffreyPopularized and enabled the use of artificial neural networks and deep learning, which rank among the most successful tools in modern artificial intelligence efforts.
1961, 1969, 1978Hoare, C.A.R.Developed the formal language Communicating Sequential Processes, Hoare logic for verifying program correctness, and Quicksort.
1968Holberton, BettyWrote the first mainframe sort merge on the Univac
1889Hollerith, HermanWidely regarded as the father of modern machine data processing. His invention of the punched card tabulating machine marks the beginning of the era of semiautomatic data processing systems.
1952Hopper, GracePioneered work on the necessity for high-level programming languages, which she termed automatic programming, and wrote the A-O compiler, which heavily influenced the COBOL language.
1997Hsu Feng-hsiungWork led to the creation of the Deep Thought chess computer, and the architect and the principal designer of the IBM Deep Blue chess computer which defeated the reigning World Chess Champion, Garry Kasparov, in 1997.
1952Hurd, CuthbertHelped the International Business Machines Corporation develop its first general-purpose computer, the IBM 701.
1945, 1953Huskey, HarryEarly computer design including contributions to the ENIAC, EDVAC, Pilot ACE, EDVAC, SEAC, SWAC, and Bendix G-15 computers. The G-15 has been described as the first personal computer, being operable by one person.
1954, 1962Iverson, KennethAssisted in establishing the first graduate course in computer science and taught that course; invented the APL programming language and made contribution to interactive computing.
1801Jacquard, Joseph MarieBuilt and demonstrated the Jacquard loom, a programmable mechanized loom controlled by a tape constructed from punched cards.
1206Al-JazariInvented programmable machines, including programmable humanoid robots, and the castle clock, an astronomical clock considered the first programmable analog computer.
1953Spärck Jones, Karen One of the pioneers of information retrieval and natural language processing.
1970, 1990Karnaugh, MauriceInventor of the Karnaugh map, used for logic function minimization.
1973Karpinski, JacekDeveloped the first differential analyzer that used transistors, and developed one of the first machine learning algorithms for character and image recognition. Also was the inventor of one of the first minicomputers, the K-202.
1970~Kay, AlanPioneered many of the ideas at the root of object-oriented programming languages, led the team that developed Smalltalk, and made fundamental contributions to personal computing.
1957Kirsch, Russell A. GrayWhilst working for the National Bureau of Standards, Kirsch used a recently developed image scanner to scan and store the first digital photograph. His scanned photo of his three-month-old son was deemed by Life magazine as one the "100 Photographs That Changed The World."
1936Kleene, Stephen ColePioneered work with Alonzo Church on the Lambda Calculus that first laid down the foundations of computation theory.
1968, 1989Knuth, DonaldWrote The Art of Computer Programming and created TeX. Coined the term "analysis of algorithms" and made major contributions to that field, including popularizing Big O notation.
1974, 1978Lamport, LeslieFormulated algorithms to solve many fundamental problems in distributed systems.
Developed the concept of a logical clock, enabling synchronization between distributed entities based on the events through which they communicate. Created LaTeX.
1951Lebedev, Sergei AlekseyevichIndependently designed the first electronic computer in the Soviet Union, MESM, in Kiev, Ukraine.
1670~Leibniz, GottfriedMade advances in symbolic logic, such as the Calculus ratiocinator, that were heavily influential on Gottlob Frege. Made developments in first-order predicate calculus that were crucial for the theoretical foundations of computer science.
1960Licklider, J. C. R.Began the investigation of human–computer interaction, leading to many advances in computer interfaces as well as in cybernetics and artificial intelligence.
1987Liskov, BarbaraDeveloped the Liskov substitution principle, which guarantees semantic interoperability of data types in a hierarchy.
1300~Llull, RamonDesigned multiple symbolic representations machines, and pioneered notions of symbolic representation and manipulation to produce knowledge—both of which were major influences on Leibniz.
1852Lovelace, AdaAn English mathematician and writer, chiefly known for her work on Charles Babbage's proposed mechanical general-purpose computer, the Analytical Engine. She was the first to recognize that the machine had applications beyond pure calculation, and created the first algorithm intended to be carried out by such a machine. As a result, she is often regarded as the first to recognize the full potential of a "computing machine" and the first computer programmer.
1909Ludgate, PercyCharles Babbage in 1843 and Percy Ludgate in 1909 designed the first two Analytical Engines in history. Ludgate's engine used multiplication as its basis, had the first multiplier-accumulator, was first to exploit a MAC to perform division, stored numbers as displacements of rods in shuttles, and had several other novel features, including for program control.
1971Martin-Löf, PerPublished an early draft on the type theory that many proof assistants build on.
1943, 1951Mauchly, JohnWith J. Presper Eckert, designed and built the ENIAC, the first modern computer, and the UNIVAC I, the first commercially available computer. Also worked on BINAC, EDVAC, UNIVAC with Grace Hopper and Jean Bartik, to develop early stored program computers.
1958McCarthy, JohnInvented LISP, a functional programming language.
1956, 2012McCluskey, Edward J.Fundamental contributions that shaped the design and testing of digital systems, including the first algorithm for digital logic synthesis, the Quine-McCluskey logic minimization method.
1963Minsky, MarvinCo-founder of Artificial Intelligence Lab at Massachusetts Institute of Technology, author of several texts on AI and philosophy. Critic of the perceptron.
850~Banū MūsāThe Banū Mūsā brothers wrote the Book of Ingenious Devices, where they described what appears to be the first programmable machine, an automatic flute player.
1950, 1960Nakamatsu YoshirōInvented the first floppy disk at Tokyo Imperial University in 1950, receiving a 1952 Japanese patent and 1958 US patent for his floppy magnetic disk sheet invention, and licensed to Nippon Columbia in 1960 and IBM in the 1970s.
2008Nakamoto, SatoshiThe anonymous creator or creators of Bitcoin, the first peer-to-peer digital currency. Nakamoto's 2008 white-paper introduced the concept of the blockchain, a database structure that allows full trust in the decentralized and distributed public transaction ledger of the cryptocurrency.
1934, 1938Nakashima AkiraNEC engineer introduced switching circuit theory in papers from 1934 to 1936, laying the foundations for digital circuit design, in digital computers and other areas of modern technology.
1960Naur, PeterEdited the ALGOL 60 Revised Report, introducing Backus-Naur form
1945Neumann, John vonFormulated the von Neumann architecture upon which most modern computers are based.
1956Newell, AllenTogether with J. C. Shaw and Herbert Simon, the three co-wrote the Logic Theorist, the first true AI program, in the first list-processing language, which influenced LISP.
1943Newman, MaxInstigated the production of the Colossus computers at Bletchley Park. After the war he established the Computing Machine Laboratory at the University of Manchester where he created the project that built the world's first stored-program computer, the Manchester Baby.
1962Nygaard, KristenWith Ole-Johan Dahl, invented the proto-object oriented language SIMULA.
500 BC ~PāṇiniAshtadhyayi Sanskrit grammar was systematised and technical, using metarules, transformations, and recursions, a forerunner to formal language theory and basis for Panini-Backus form used to describe programming languages.
1642Pascal, BlaiseInvented the mechanical calculator.
1952Perlis, AlanOn Project Whirlwind, member of the team that developed the ALGOL programming language, and the first recipient of the Turing Award
1985Perlman, RadiaInvented the Spanning Tree Protocol, which is fundamental to the operation of network bridges, while working for Digital Equipment Corporation. Has done extensive and innovative research, particularly on encryption and networking. She received the USENIX Lifetime Achievement Award in 2007, among numerous others.
1964Perotto, Pier GiorgioComputer designer for Olivetti, designed one of the first electronic programmable calculators, the Programma 101
1932Péter, RózsaPublished a series of papers grounding recursion theory as a separate area of mathematical research, setting the foundation for theoretical computer science.
1995Picard, Rosalind Founded Affective Computing, and laid the foundations for giving computers skills of emotional intelligence.
1936Post, Emil L.Developed the Post machine as a model of computation, independently of Turing. Known also for developing truth tables, the Post correspondence problem used in recursion theory as well as proving what is known as Post's theorem.
1967–2011Ritchie, DennisWith Ken Thompson, pioneered the C programming language and the Unix computer operating system at Bell Labs.
1958–1960Rosen, SaulDesigned the software of the first transistor-based computer. Also influenced the ALGOL programming language.
1910Russell, BertrandMade contributions to computer science with his work on mathematical logic. Introduced the notion of type theory. He also introduced type system in his work, Principia Mathematica.
1975Salton, GerardA pioneer of automatic information retrieval, who proposed the vector space model and the inverted index.
1962Sammet, Jean E.Developed the FORMAC programming language. She was also the first to write extensively about the history and categorization of programming languages in 1969, and became the first female president of the Association for Computing Machinery in 1974.
1963, 1973Sasaki TadashiSharp engineer who conceived a single-chip microprocessor CPU, presenting the idea to Busicom and Intel in 1968. This influenced the first commercial microprocessor, the Intel 4004; before Busicom, Intel was a memory manufacturer. Tadashi Sasaki also developed LCD calculators at Sharp.
1937, 1948Shannon, ClaudeFounded information theory, and laid foundations for practical digital circuit design.
1968, 1980Shima MasatoshiDesigned the Intel 4004, the first commercial microprocessor, as well as the Intel 8080, Zilog Z80 and Zilog Z8000 microprocessors, and the Intel 8259, 8255, 8253, 8257 and 8251 chips.
1956, 1957Simon, Herbert A.A political scientist and economist who pioneered artificial intelligence. Co-creator of the Logic Theory Machine and the General Problem Solver programs.
1972Stallman, RichardStallman launched the GNU Project in September 1983 to create a Unix-like computer operating system composed entirely of free software. With this, he also launched the free software movement.
1982Stonebraker, MichaelResearcher at MIT's Computer Science and Artificial Intelligence Laboratory who revolutionized the field of database management systems and founded multiple successful database companies
1979Stroustrup, BjarneInvented C++ at Bell Labs
1963Sutherland, IvanAuthor of Sketchpad, the ancestor of modern computer-aided drafting programs and one of the early examples of object-oriented programming.
1967Thompson, KenCreated the Unix operating system, the B programming language, Plan 9 operating system, the first machine to achieve a Master rating in chess, and the UTF-8 encoding at Bell Labs and the Go programming language at Google.
1993Toh Chai KeongCreated mobile ad hoc networking; Implemented the first working wireless ad hoc network of laptop computers in 1998 using Linux OS, Lucent WaveLan 802.11 radios, and a new distributed routing protocol transparent to TCP/UDP/IP.
1991Torvalds, LinusCreated the first version of the Linux kernel.
1852Torres Quevedo, LeonardoIn his work Ensayos Sobre Automatica, published for the first time in 1914, Torres Quevedo formulates what will be a new branch of engineering: Automation.
1965Tukey, John W.With James Cooley, created the fast Fourier transform. He invented the term "bit".
1936Turing, AlanMade several founding contributions to computer science, including the Turing machine computational model, the conceiving of the stored program concept and the designing of the high-speed ACE design. Widely considered as the father of computer science and artificial intelligence.
1950~Wang AnMade key contributions to the development of magnetic core memory.
1955, 1960s, 1974Ware, WillisCo-designer of JOHNNIAC. Chaired committee that developed the Code of Fair Information Practice and led to the Privacy Act of 1974. Vice-chair of the Privacy Protection Study Commission.
1968Wijngaarden, Adriaan vanDeveloper of the W-grammar first used in the definition of ALGOL 68
1949Wilkes, MauriceBuilt the first practical stored program computer to be completed and for being credited with the ideas of several high-level programming language constructs.
1970, 1978Wirth, NiklausDesigned the Pascal, Modula-2 and Oberon programming languages.
1875, 1875Verea, RamónDesigned and patented the Verea Direct Multiplier, the first mechanical direct multiplier.
1938, 1945Zuse, KonradBuilt the first digital freely programmable computer, the Z1. Built the first functional program-controlled computer, the Z3. The Z3 was proven to be Turing-complete in 1998. Produced the world's first commercial computer, the Z4. Designed the first high-level programming language, Plankalkül.
1970Wilkinson, James H.Research in numerical analysis to facilitate the use of the high-speed digital computer, having received special recognition for his work in computations in linear algebra and "backward" error analysis.
1973Bachman, CharlesOutstanding contributions to database technology.
1976Rabin, Michael O.The joint paper "Finite Automata and Their Decision Problems," which introduced the idea of nondeterministic machines, which has proved to be an enormously valuable concept. Their classic paper has been a continuous source of inspiration for subsequent work in this field.
1976Scott, DanaThe joint paper "Finite Automata and Their Decision Problems," which introduced the idea of nondeterministic machines, which has proved to be an enormously valuable concept. Their classic paper has been a continuous source of inspiration for subsequent work in this field.
1978Floyd, Robert W.Having a clear influence on methodologies for the creation of efficient and reliable software, and helping to found the following important subfields of computer science: the theory of parsing, the semantics of programming languages, automatic program verification, automatic program synthesis, and analysis of algorithms.
1985Karp, Richard M.Contributions to the theory of algorithms including the development of efficient algorithms for network flow and other combinatorial optimization problems, the identification of polynomial-time computability with the intuitive notion of algorithmic efficiency, and, most notably, contributions to the theory of NP-completeness.
1986Hopcroft, JohnFundamental achievements in the design and analysis of algorithms and data structures.
1986Tarjan, RobertFundamental achievements in the design and analysis of algorithms and data structures.
1987Cocke, JohnSignificant contributions in the design and theory of compilers, the architecture of large systems and the development of reduced instruction set computers LCF, the mechanization of Scott's Logic of Computable Functions, probably the first theoretically based yet practical tool for machine assisted proof construction; 2) ML, the first language to include polymorphic type inference together with a type-safe exception-handling mechanism; 3) CCS, a general theory of concurrency. In addition, he formulated and strongly advanced full abstraction, the study of the relationship between operational and denotational semantics.
1992Lampson, Butler W.Development of distributed, personal computing environments and the technology for their implementation: workstations, networks, operating systems, programming systems, displays, security and document publishing.
1993Hartmanis, JurisFoundations for the field of computational complexity theory.
1993Stearns, Richard E.Foundations for the field of computational complexity theory.
1994Feigenbaum, EdwardPioneering the design and construction of large scale artificial intelligence systems, demonstrating the practical importance and potential commercial impact of artificial intelligence technology.
1994Reddy, RajPioneering the design and construction of large scale artificial intelligence systems, demonstrating the practical importance and potential commercial impact of artificial intelligence technology.
1995Blum, ManuelContributions to the foundations of computational complexity theory and its application to cryptography and program checking.
1996Pnueli, AmirIntroducing temporal logic into computing science and for outstanding contributions to program and systems verification.
2000Yao, AndrewFundamental contributions to the theory of computation, including the complexity-based theory of pseudorandom number generation, cryptography, and communication complexity.
1977Rivest, Ron Ingenious contribution and making public-key cryptography useful in practice.
1977Shamir, Adi Ingenious contribution and making public-key cryptography useful in practice.
1977Adleman, Leonard Ingenious contribution and making public-key cryptography useful in practice.
1978Kahn, BobDesigned the Transmission Control Protocol and Internet Protocol, the primary data communication protocols of the Internet and other computer networks.
2007Sifakis, JosephDeveloping model checking into a highly effective verification technology, widely adopted in the hardware and software industries.
2010Valiant, LeslieTransformative contributions to the theory of computation, including the theory of probably approximately correct learning, the complexity of enumeration and of algebraic computation, and the theory of parallel and distributed computing.
2011Pearl, JudeaFundamental contributions to artificial intelligence through the development of a calculus for probabilistic and causal reasoning.
1976Hellman, MartinFundamental contributions to modern cryptography. Diffie and Hellman's groundbreaking 1976 paper, "New Directions in Cryptography," introduced the ideas of public-key cryptography and digital signatures, which are the foundation for most regularly-used security protocols on the Internet today.
1976Diffie, WhitfieldFundamental contributions to modern cryptography. Diffie and Hellman's groundbreaking 1976 paper, "New Directions in Cryptography," introduced the ideas of public-key cryptography and digital signatures, which are the foundation for most regularly-used security protocols on the Internet today.
2018Bengio, YoshuaConceptual and engineering breakthroughs that have made deep neural networks a critical component of computing.
2018LeCun, YannConceptual and engineering breakthroughs that have made deep neural networks a critical component of computing.

~ Items marked with a tilde are circa dates.