99-636: Douglas " Doug " Carl Engelbart (January 30, 1925 – July 2, 2013) was an American engineer, inventor, and a pioneer in many aspects of computer science . He is best known for his work on founding the field of human–computer interaction , particularly while at his Augmentation Research Center Lab in SRI International , which resulted in creation of the computer mouse , and the development of hypertext , networked computers, and precursors to graphical user interfaces . These were demonstrated at The Mother of All Demos in 1968. Engelbart's law ,
198-1020: A National Science Foundation grant to fund the open source HyperScope project. The Hyperscope team built a browser component using Ajax and Dynamic HTML designed to replicate Augment's multiple viewing and jumping capabilities (linking within and across various documents). Engelbart attended the Program for the Future 2010 Conference where hundreds of people convened at The Tech Museum in San Jose and online to engage in dialog about how to pursue his vision to augment collective intelligence . The most complete coverage of Engelbart's bootstrapping ideas can be found in Boosting Our Collective IQ , by Douglas C. Engelbart, 1995. This includes three of Engelbart's key papers, edited into book form by Yuri Rubinsky and Christina Engelbart to commemorate
297-399: A patent in 1967 and received it in 1970, for the wooden shell with two metal wheels ( computer mouse – U.S. patent 3,541,541 ), which he had developed with Bill English, his lead engineer, sometime before 1965. In the patent application it is described as an "X-Y position indicator for a display system". Engelbart later revealed that it was nicknamed the "mouse" because the tail came out
396-471: A 45-degree angle on the right. He never received any royalties for the invention of the mouse. During an interview, he said, "SRI patented the mouse, but they really had no idea of its value. Some years later it was learned that they had licensed it to Apple Computer for something like $ 40,000." Engelbart showcased the chorded keyboard and many more of his and ARC's inventions in 1968 at The Mother of All Demos . Engelbart slipped into relative obscurity by
495-604: A call to action for making knowledge widely available as a national peacetime grand challenge. He had also read something about the recent phenomenon of computers, and from his experience as a radar technician, he knew that information could be analyzed and displayed on a screen. He envisioned intellectual workers sitting at display "working stations", flying through information space, harnessing their collective intellectual capacity to solve important problems together in much more powerful ways. Harnessing collective intellect, facilitated by interactive computers, became his life's mission at
594-585: A discipline, computer science spans a range of topics from theoretical studies of algorithms and the limits of computation to the practical issues of implementing computing systems in hardware and software. CSAB , formerly called Computing Sciences Accreditation Board—which is made up of representatives of the Association for Computing Machinery (ACM), and the IEEE Computer Society (IEEE CS) —identifies four areas that it considers crucial to
693-753: A distinct academic discipline in the 1950s and early 1960s. The world's first computer science degree program, the Cambridge Diploma in Computer Science , began at the University of Cambridge Computer Laboratory in 1953. The first computer science department in the United States was formed at Purdue University in 1962. Since practical computers became available, many applications of computing have become distinct areas of study in their own rights. Although first proposed in 1956,
792-464: A mathematical discipline argue that computer programs are physical realizations of mathematical entities and programs that can be deductively reasoned through mathematical formal methods . Computer scientists Edsger W. Dijkstra and Tony Hoare regard instructions for computer programs as mathematical sentences and interpret formal semantics for programming languages as mathematical axiomatic systems . A number of computer scientists have argued for
891-443: A mathematics emphasis and with a numerical orientation consider alignment with computational science . Both types of departments tend to make efforts to bridge the field educationally if not across all research. Despite the word science in its name, there is debate over whether or not computer science is a discipline of science, mathematics, or engineering. Allen Newell and Herbert A. Simon argued in 1975, Computer science
990-463: A network while using concurrency, this is known as a distributed system. Computers within that distributed system have their own private memory, and information can be exchanged to achieve common goals. This branch of computer science aims to manage networks between computers worldwide. Computer security is a branch of computer technology with the objective of protecting information from unauthorized access, disruption, or modification while maintaining
1089-550: A number of terms for the practitioners of the field of computing were suggested in the Communications of the ACM — turingineer , turologist , flow-charts-man , applied meta-mathematician , and applied epistemologist . Three months later in the same journal, comptologist was suggested, followed next year by hypologist . The term computics has also been suggested. In Europe, terms derived from contracted translations of
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#17327988099881188-495: A particular kind of mathematically based technique for the specification , development and verification of software and hardware systems. The use of formal methods for software and hardware design is motivated by the expectation that, as in other engineering disciplines, performing appropriate mathematical analysis can contribute to the reliability and robustness of a design. They form an important theoretical underpinning for software engineering, especially where safety or security
1287-451: A rash of belt-tightening reorganizations which drastically redirected the efforts of their alliance partners, they continued with the management seminars, consulting, and small-scale collaborations. In the mid-1990s they were awarded some DARPA funding to develop a modern user interface to Augment, called Visual AugTerm (VAT), while participating in a larger program addressing the IT requirements of
1386-562: A report about his vision and proposed research agenda titled Augmenting Human Intellect: A Conceptual Framework . The research was funded by the Air Force Office of Scientific Research , where Rowena Swanson took an active interest in Engelbart's work. Among other highlights, this paper introduced " Building Information Modelling ", which architectural and engineering practice eventually adopted (first as " parametric design ") in
1485-512: A significant amount of computer science does not involve the study of computers themselves. Because of this, several alternative names have been proposed. Certain departments of major universities prefer the term computing science , to emphasize precisely that difference. Danish scientist Peter Naur suggested the term datalogy , to reflect the fact that the scientific discipline revolves around data and data treatment, while not necessarily involving computers. The first scientific institution to use
1584-410: A specific application. Codes are used for data compression , cryptography , error detection and correction , and more recently also for network coding . Codes are studied for the purpose of designing efficient and reliable data transmission methods. Data structures and algorithms are the studies of commonly used computational methods and their computational efficiency. Programming language theory
1683-504: A time when computers were viewed as number crunching tools. As a graduate student at Berkeley, he assisted in the construction of CALDIC . His graduate work led to eight patents. After completing his doctorate, Engelbart stayed on at Berkeley as an assistant professor for a year before departing when it became clear that he could not pursue his vision there. Engelbart then formed a startup company, Digital Techniques, to commercialize some of his doctoral research on storage devices, but after
1782-468: A year decided instead to pursue the research he had been dreaming of since 1951. Engelbart took a position at SRI International (known then as Stanford Research Institute) in Menlo Park, California in 1957. He worked for Hewitt Crane on magnetic devices and miniaturization of electronics; Engelbart and Crane became close friends. At SRI, Engelbart soon obtained a dozen patents, and by 1962 produced
1881-415: Is a branch of computer science that deals with the design, implementation, analysis, characterization, and classification of programming languages and their individual features . It falls within the discipline of computer science, both depending on and affecting mathematics, software engineering, and linguistics . It is an active research area, with numerous dedicated academic journals. Formal methods are
1980-422: Is an empirical discipline. We would have called it an experimental science, but like astronomy, economics, and geology, some of its unique forms of observation and experience do not fit a narrow stereotype of the experimental method. Nonetheless, they are experiments. Each new machine that is built is an experiment. Actually constructing the machine poses a question to nature; and we listen for the answer by observing
2079-484: Is an open problem in the theory of computation. Information theory, closely related to probability and statistics , is related to the quantification of information. This was developed by Claude Shannon to find fundamental limits on signal processing operations such as compressing data and on reliably storing and communicating data. Coding theory is the study of the properties of codes (systems for converting information from one form to another) and their fitness for
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#17327988099882178-479: Is associated in the popular mind with robotic development , but the main field of practical application has been as an embedded component in areas of software development , which require computational understanding. The starting point in the late 1940s was Alan Turing's question " Can computers think? ", and the question remains effectively unanswered, although the Turing test is still used to assess computer output on
2277-548: Is connected to many other fields in computer science, including computer vision , image processing , and computational geometry , and is heavily applied in the fields of special effects and video games . Information can take the form of images, sound, video or other multimedia. Bits of information can be streamed via signals . Its processing is the central notion of informatics, the European view on computing, which studies information processing algorithms independently of
2376-409: Is considered by some to have a much closer relationship with mathematics than many scientific disciplines, with some observers saying that computing is a mathematical science. Early computer science was strongly influenced by the work of mathematicians such as Kurt Gödel , Alan Turing , John von Neumann , Rózsa Péter and Alonzo Church and there continues to be a useful interchange of ideas between
2475-508: Is determining what can and cannot be automated. The Turing Award is generally recognized as the highest distinction in computer science. The earliest foundations of what would become computer science predate the invention of the modern digital computer . Machines for calculating fixed numerical tasks such as the abacus have existed since antiquity, aiding in computations such as multiplication and division. Algorithms for performing computations have existed since antiquity, even before
2574-630: Is generally considered the province of disciplines other than computer science. For example, the study of computer hardware is usually considered part of computer engineering , while the study of commercial computer systems and their deployment is often called information technology or information systems . However, there has been exchange of ideas between the various computer-related disciplines. Computer science research also often intersects other disciplines, such as cognitive science , linguistics , mathematics , physics , biology , Earth science , statistics , philosophy , and logic . Computer science
2673-584: Is intended to organize, store, and retrieve large amounts of data easily. Digital databases are managed using database management systems to store, create, maintain, and search data, through database models and query languages . Data mining is a process of discovering patterns in large data sets. The philosopher of computing Bill Rapaport noted three Great Insights of Computer Science : Programming languages can be used to accomplish different tasks in different ways. Common programming paradigms include: Many languages offer support for multiple paradigms, making
2772-426: Is involved. Formal methods are a useful adjunct to software testing since they help avoid errors and can also give a framework for testing. For industrial use, tool support is required. However, the high cost of using formal methods means that they are usually only used in the development of high-integrity and life-critical systems , where safety or security is of utmost importance. Formal methods are best described as
2871-545: Is mathematical and abstract in spirit, but it derives its motivation from practical and everyday computation. It aims to understand the nature of computation and, as a consequence of this understanding, provide more efficient methodologies. According to Peter Denning, the fundamental question underlying computer science is, "What can be automated?" Theory of computation is focused on answering fundamental questions about what can be computed and what amount of resources are required to perform those computations. In an effort to answer
2970-519: Is of high quality, affordable, maintainable, and fast to build. It is a systematic approach to software design, involving the application of engineering practices to software. Software engineering deals with the organizing and analyzing of software—it does not just deal with the creation or manufacture of new software, but its internal arrangement and maintenance. For example software testing , systems engineering , technical debt and software development processes . Artificial intelligence (AI) aims to or
3069-584: Is required to synthesize goal-orientated processes such as problem-solving, decision-making, environmental adaptation, learning, and communication found in humans and animals. From its origins in cybernetics and in the Dartmouth Conference (1956), artificial intelligence research has been necessarily cross-disciplinary, drawing on areas of expertise such as applied mathematics , symbolic logic, semiotics , electrical engineering , philosophy of mind , neurophysiology , and social intelligence . AI
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3168-432: Is the field of study and research concerned with the design and use of computer systems , mainly based on the analysis of the interaction between humans and computer interfaces . HCI has several subfields that focus on the relationship between emotions , social behavior and brain activity with computers . Software engineering is the study of designing, implementing, and modifying the software in order to ensure it
3267-783: Is the field of study concerned with constructing mathematical models and quantitative analysis techniques and using computers to analyze and solve scientific problems. A major usage of scientific computing is simulation of various processes, including computational fluid dynamics , physical, electrical, and electronic systems and circuits, as well as societies and social situations (notably war games) along with their habitats, among many others. Modern computers enable optimization of such designs as complete aircraft. Notable in electrical and electronic circuit design are SPICE, as well as software for physical realization of new (or modified) designs. The latter includes essential design software for integrated circuits . Human–computer interaction (HCI)
3366-567: Is the quick development of this relatively new field requires rapid review and distribution of results, a task better handled by conferences than by journals. CALDIC CALDIC (the California Digital Computer ) is an electronic digital computer built with the assistance of the Office of Naval Research at the University of California, Berkeley between 1951 and 1955 to assist and enhance research being conducted at
3465-562: Is the study of computation , information , and automation . Computer science spans theoretical disciplines (such as algorithms , theory of computation , and information theory ) to applied disciplines (including the design and implementation of hardware and software ). Algorithms and data structures are central to computer science. The theory of computation concerns abstract models of computation and general classes of problems that can be solved using them. The fields of cryptography and computer security involve studying
3564-868: The American Computer & Robotics Museum in 1998. Also in 1998, Association for Computing Machinery (ACM) SIGCHI awarded Engelbart the CHI Lifetime Achievement Award. ACM SIGCHI later inducted Engelbart into the CHI Academy in 2002. Engelbart was awarded The Franklin Institute's Certificate of Merit in 1996 and the Benjamin Franklin Medal in 1999 in Computer and Cognitive Science. In early 2000 Engelbart produced, with volunteers and sponsors, what
3663-540: The United States Navy as a radio and radar technician in the Philippines . It was there, on the remote island of Leyte in a small traditional hut on stilts, that he read Vannevar Bush 's article " As We May Think ", which would have a large influence on his thinking and work. He returned to Oregon State and completed his bachelor's degree in electrical engineering in 1948. While at Oregon State, he
3762-543: The University of California, Berkeley . At Berkeley, he studied electrical engineering with a specialty in computers, earning his MS in 1953 and his PhD in 1955. Engelbart's career was inspired in December 1950 when he was engaged to be married and realized he had no career goals other than "a steady job, getting married and living happily ever after". Over several months he reasoned that: In 1945, Engelbart had read with interest Vannevar Bush's article "As We May Think",
3861-475: The "technocratic paradigm" (which might be found in engineering approaches, most prominently in software engineering), and the "scientific paradigm" (which approaches computer-related artifacts from the empirical perspective of natural sciences , identifiable in some branches of artificial intelligence ). Computer science focuses on methods involved in design, specification, programming, verification, implementation and testing of human-made computing systems. As
3960-570: The 100th anniversary of the invention of the arithmometer, Torres presented in Paris the Electromechanical Arithmometer , a prototype that demonstrated the feasibility of an electromechanical analytical engine, on which commands could be typed and the results printed automatically. In 1937, one hundred years after Babbage's impossible dream, Howard Aiken convinced IBM, which was making all kinds of punched card equipment and
4059-406: The 1990s and after. This led to funding from ARPA to launch his work. Engelbart recruited a research team in his new Augmentation Research Center (ARC, the lab he founded at SRI). Engelbart embedded a set of organizing principles in his lab, which he termed " bootstrapping strategy". He designed the strategy to accelerate the rate of innovation of his lab. The ARC became the driving force behind
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4158-456: The 2nd of the only two designs for mechanical analytical engines in history. In 1914, the Spanish engineer Leonardo Torres Quevedo published his Essays on Automatics , and designed, inspired by Babbage, a theoretical electromechanical calculating machine which was to be controlled by a read-only program. The paper also introduced the idea of floating-point arithmetic . In 1920, to celebrate
4257-699: The ACM Turing Award . To mark the 30th anniversary of Engelbart's 1968 demo, in 1998 the Stanford Silicon Valley Archives and the Institute for the Future hosted Engelbart's Unfinished Revolution , a symposium at Stanford University 's Memorial Auditorium, to honor Engelbart and his ideas. He was inducted into National Inventors Hall of Fame in 1998. Engelbart was awarded the Stibitz-Wilson Award from
4356-567: The Advisory Boards of the University of Santa Clara Center for Science, Technology, and Society , Foresight Institute , Computer Professionals for Social Responsibility , The Technology Center of Silicon Valley, and The Liquid Information Company. Engelbart had four children, Gerda, Diana, Christina and Norman with his first wife Ballard, who died in 1997 after 47 years of marriage. He remarried on January 26, 2008, to writer and producer Karen O'Leary Engelbart. An 85th birthday celebration
4455-631: The Analytical Engine, Ada Lovelace wrote, in one of the many notes she included, an algorithm to compute the Bernoulli numbers , which is considered to be the first published algorithm ever specifically tailored for implementation on a computer. Around 1885, Herman Hollerith invented the tabulator , which used punched cards to process statistical information; eventually his company became part of IBM . Following Babbage, although unaware of his earlier work, Percy Ludgate in 1909 published
4554-578: The Bootstrap Institute in 1988 to coalesce his ideas into a series of three-day and half-day management seminars offered at Stanford University from 1989 to 2000. By the early 1990s there was sufficient interest among his seminar graduates to launch a collaborative implementation of his work, and the Bootstrap Alliance was formed as a non-profit home base for this effort. Although the invasion of Iraq and subsequent recession spawned
4653-597: The Joint Task Force. Engelbart was Founder Emeritus of the Doug Engelbart Institute, which he founded in 1988 with his daughter Christina Engelbart, who is executive director. The Institute promotes Engelbart's philosophy for boosting Collective IQ—the concept of dramatically improving how we can solve important problems together—using a strategic bootstrapping approach for accelerating our progress toward that goal. In 2005, Engelbart received
4752-559: The Machine Organization department in IBM's main research center in 1959. Concurrency is a property of systems in which several computations are executing simultaneously, and potentially interacting with each other. A number of mathematical models have been developed for general concurrent computation including Petri nets , process calculi and the parallel random access machine model. When multiple computers are connected in
4851-815: The Sixties Counterculture Shaped the Personal Computer Industry by John Markoff and A Heritage of Innovation: SRI's First Half Century by Donald Neilson. Other books on Engelbart and his laboratory include Bootstrapping: Douglas Engelbart, Coevolution, and the Origins of Personal Computing by Thierry Bardini and The Engelbart Hypothesis: Dialogs with Douglas Engelbart , by Valerie Landau and Eileen Clegg in conversation with Douglas Engelbart. All four of these books are based on interviews with Engelbart as well as other contributors in his laboratory. Engelbart served on
4950-553: The UK (as in the School of Informatics, University of Edinburgh ). "In the U.S., however, informatics is linked with applied computing, or computing in the context of another domain." A folkloric quotation, often attributed to—but almost certainly not first formulated by— Edsger Dijkstra , states that "computer science is no more about computers than astronomy is about telescopes." The design and deployment of computers and computer systems
5049-516: The accessibility and usability of the system for its intended users. Historical cryptography is the art of writing and deciphering secret messages. Modern cryptography is the scientific study of problems relating to distributed computations that can be attacked. Technologies studied in modern cryptography include symmetric and asymmetric encryption , digital signatures , cryptographic hash functions , key-agreement protocols , blockchain , zero-knowledge proofs , and garbled circuits . A database
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#17327988099885148-433: The application of a fairly broad variety of theoretical computer science fundamentals, in particular logic calculi, formal languages , automata theory , and program semantics , but also type systems and algebraic data types to problems in software and hardware specification and verification. Computer graphics is the study of digital visual contents and involves the synthesis and manipulation of image data. The study
5247-410: The binary number system. In 1820, Thomas de Colmar launched the mechanical calculator industry when he invented his simplified arithmometer , the first calculating machine strong enough and reliable enough to be used daily in an office environment. Charles Babbage started the design of the first automatic mechanical calculator , his Difference Engine , in 1822, which eventually gave him the idea of
5346-461: The control of artificial intelligence researcher Bertram Raphael , who negotiated the transfer of the laboratory to Tymshare in 1976. Engelbart's house in Atherton, California burned down during this period, causing him and his family further problems. Tymshare took over NLS and the lab that Engelbart had founded, hired most of the lab's staff (including its creator as a Senior Scientist), renamed
5445-611: The design and development of the oN-Line System (NLS). He and his team developed computer interface elements such as bitmapped screens, the mouse, hypertext, collaborative tools, and precursors to the graphical user interface. He conceived and developed many of his user interface ideas in the mid-1960s, long before the personal computer revolution, at a time when most computers were inaccessible to individuals who could only use computers through intermediaries (see batch processing ), and when software tended to be written for vertical applications in proprietary systems. Engelbart applied for
5544-750: The design and principles behind developing software. Areas such as operating systems , networks and embedded systems investigate the principles and design behind complex systems . Computer architecture describes the construction of computer components and computer-operated equipment. Artificial intelligence and machine learning aim to synthesize goal-orientated processes such as problem-solving, decision-making, environmental adaptation, planning and learning found in humans and animals. Within artificial intelligence, computer vision aims to understand and process image and video data, while natural language processing aims to understand and process textual and linguistic data. The fundamental concern of computer science
5643-475: The development of sophisticated computing equipment. Wilhelm Schickard designed and constructed the first working mechanical calculator in 1623. In 1673, Gottfried Leibniz demonstrated a digital mechanical calculator, called the Stepped Reckoner . Leibniz may be considered the first computer scientist and information theorist, because of various reasons, including the fact that he documented
5742-583: The discipline of computer science: theory of computation , algorithms and data structures , programming methodology and languages , and computer elements and architecture . In addition to these four areas, CSAB also identifies fields such as software engineering, artificial intelligence, computer networking and communication, database systems, parallel computation, distributed computation, human–computer interaction, computer graphics, operating systems, and numerical and symbolic computation as being important areas of computer science. Theoretical computer science
5841-424: The distinction more a matter of style than of technical capabilities. Conferences are important events for computer science research. During these conferences, researchers from the public and private sectors present their recent work and meet. Unlike in most other academic fields, in computer science, the prestige of conference papers is greater than that of journal publications. One proposed explanation for this
5940-459: The distinction of three separate paradigms in computer science. Peter Wegner argued that those paradigms are science, technology, and mathematics. Peter Denning 's working group argued that they are theory, abstraction (modeling), and design. Amnon H. Eden described them as the "rationalist paradigm" (which treats computer science as a branch of mathematics, which is prevalent in theoretical computer science, and mainly employs deductive reasoning),
6039-482: The end. His group also called the on-screen Cursor a "bug", but this term was not widely adopted. Engelbart's original cursor was displayed as an arrow pointing upward, but was slanted to the left upon its deployment in the XEROX PARC machine to better distinguish between on-screen text and the cursor in the machine's low-resolution interface. The now-familiar cursor arrow is characterized by a vertical left side and
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#17327988099886138-520: The expression "automatic information" (e.g. "informazione automatica" in Italian) or "information and mathematics" are often used, e.g. informatique (French), Informatik (German), informatica (Italian, Dutch), informática (Spanish, Portuguese), informatika ( Slavic languages and Hungarian ) or pliroforiki ( πληροφορική , which means informatics) in Greek . Similar words have also been adopted in
6237-462: The first programmable mechanical calculator , his Analytical Engine . He started developing this machine in 1834, and "in less than two years, he had sketched out many of the salient features of the modern computer". "A crucial step was the adoption of a punched card system derived from the Jacquard loom " making it infinitely programmable. In 1843, during the translation of a French article on
6336-488: The first question, computability theory examines which computational problems are solvable on various theoretical models of computation . The second question is addressed by computational complexity theory , which studies the time and space costs associated with different approaches to solving a multitude of computational problems. The famous P = NP? problem, one of the Millennium Prize Problems ,
6435-539: The funds or the people to further develop them. His interest inside of McDonnell Douglas was focused on the enormous knowledge management and IT requirements involved in the life cycle of an aerospace program, which served to strengthen Engelbart's resolve to motivate the information technology arena toward global interoperability and an open hyperdocument system. Engelbart retired from McDonnell Douglas in 1986, determined to pursue his work free from commercial pressure. Teaming with his daughter, Christina Engelbart, he founded
6534-678: The late 1980s, prominent individuals and organizations have recognized the seminal importance of Engelbart's contributions. In December 1995, at the Fourth WWW Conference in Boston , he was the first recipient of what would later become the Yuri Rubinsky Memorial Award . In 1997, he was awarded the Lemelson-MIT Prize of $ 500,000, the world's largest single prize for invention and innovation, and
6633-502: The machine in operation and analyzing it by all analytical and measurement means available. It has since been argued that computer science can be classified as an empirical science since it makes use of empirical testing to evaluate the correctness of programs , but a problem remains in defining the laws and theorems of computer science (if any exist) and defining the nature of experiments in computer science. Proponents of classifying computer science as an engineering discipline argue that
6732-425: The magnetic memory could store about 400,000 bits.) It contained 1,300 vacuum tubes , 1,000 crystal diodes , 100 magnetic elements (for the recording heads), and 12 relays (in the power supply). It weighed about 1,500 pounds (680 kg). It was capable of speeds of 50 iterations per second. CALDIC was a stored program computer with a six-digit instruction format (two digits for the opcode and four digits for
6831-461: The means for secure communication and preventing security vulnerabilities . Computer graphics and computational geometry address the generation of images. Programming language theory considers different ways to describe computational processes, and database theory concerns the management of repositories of data. Human–computer interaction investigates the interfaces through which humans and computers interact, and software engineering focuses on
6930-600: The memory address). The computer was initially planned by Paul Morton , Leland Cunningham , and Dick Lehmer ; the latter two had been involved with the ENIAC at the University of Pennsylvania , and Lehmer had given one of the Moore School Lectures . Morton oversaw the design and construction with a team comprising electrical engineering graduate and undergraduate students at the university, more than 35 in total, including Doug Engelbart (who later invented
7029-431: The mid-1970s. As early as 1970, several of his researchers became alienated from him and left his organization for Xerox PARC , in part due to frustration, and in part due to differing views of the future of computing. Engelbart saw the future in collaborative, networked, timeshare (client-server) computers, which younger programmers rejected in favor of personal computers . The conflict was both technical and ideological:
7128-563: The morale and social cohesion of the ARC community. The 1969 Mansfield Amendment , which ended military funding of non-military research, the end of the Vietnam War , and the end of the Apollo program gradually reduced ARC's funding from ARPA and NASA throughout the early 1970s. SRI's management, which disapproved of Engelbart's approach to running the center, placed the remains of ARC under
7227-579: The observation that the intrinsic rate of human performance is exponential, is named after him. NLS , the "oN-Line System", developed by the Augmentation Research Center under Engelbart's guidance with funding primarily from ARPA (as DARPA was then known), demonstrated numerous technologies, most of which are now in widespread use; it included the computer mouse, bitmapped screens, word processing, and hypertext; all of which were displayed at "The Mother of All Demos" in 1968. The lab
7326-535: The ongoing work of the Doug Engelbart Institute. In June 2009, the New Media Consortium recognized Engelbart as an NMC Fellow for his lifetime of achievements. In 2011, Engelbart was inducted into IEEE Intelligent Systems ' AI's Hall of Fame. Engelbart received the first honorary Doctor of Engineering and Technology degree from Yale University in May 2011. Computer science Computer science
7425-655: The presentation of the 1995 SoftQuad Web Award to Doug Engelbart at the World Wide Web conference in Boston in December 1995. Only 2,000 softcover copies were printed, and 100 hardcover, numbered and signed by Engelbart and Tim Berners-Lee . Engelbart's book is now being republished by the Doug Engelbart Institute. Two comprehensive histories of Engelbart's laboratory and work are in What the Dormouse Said: How
7524-478: The principal focus of computer science is studying the properties of computation in general, while the principal focus of software engineering is the design of specific computations to achieve practical goals, making the two separate but complementary disciplines. The academic, political, and funding aspects of computer science tend to depend on whether a department is formed with a mathematical emphasis or with an engineering emphasis. Computer science departments with
7623-484: The reliability of computational systems is investigated in the same way as bridges in civil engineering and airplanes in aerospace engineering . They also argue that while empirical sciences observe what presently exists, computer science observes what is possible to exist and while scientists discover laws from observation, no proper laws have been found in computer science and it is instead concerned with creating phenomena. Proponents of classifying computer science as
7722-409: The scale of human intelligence. But the automation of evaluative and predictive tasks has been increasingly successful as a substitute for human monitoring and intervention in domains of computer application involving complex real-world data. Computer architecture, or digital computer organization, is the conceptual design and fundamental operational structure of a computer system. It focuses largely on
7821-680: The software Augment , and offered it as a commercial service via its new Office Automation Division. Tymshare was already somewhat familiar with NLS; when ARC was still operational, it had experimented with its own local copy of the NLS software on a minicomputer called OFFICE-1, as part of a joint project with ARC. At Tymshare, Engelbart soon found himself further marginalized. Operational concerns at Tymshare overrode Engelbart's desire to conduct ongoing research. Various executives, first at Tymshare and later at McDonnell Douglas, which acquired Tymshare in 1984, expressed interest in his ideas, but never committed
7920-529: The sophistication of a language controls the sophistication of the thoughts that can be expressed by a speaker of that language, Engelbart reasoned that the state of our current technology controls our ability to manipulate information, and that fact in turn will control our ability to develop new, improved technologies. He thus set himself to the revolutionary task of developing computer-based technologies for manipulating information directly, and also to improve individual and group processes for knowledge-work. Since
8019-581: The term computer came to refer to the machines rather than their human predecessors. As it became clear that computers could be used for more than just mathematical calculations, the field of computer science broadened to study computation in general. In 1945, IBM founded the Watson Scientific Computing Laboratory at Columbia University in New York City . The renovated fraternity house on Manhattan's West Side
8118-758: The term "computer science" appears in a 1959 article in Communications of the ACM , in which Louis Fein argues for the creation of a Graduate School in Computer Sciences analogous to the creation of Harvard Business School in 1921. Louis justifies the name by arguing that, like management science , the subject is applied and interdisciplinary in nature, while having the characteristics typical of an academic discipline. His efforts, and those of others such as numerical analyst George Forsythe , were rewarded: universities went on to create such departments, starting with Purdue in 1962. Despite its name,
8217-579: The term was the Department of Datalogy at the University of Copenhagen, founded in 1969, with Peter Naur being the first professor in datalogy. The term is used mainly in the Scandinavian countries. An alternative term, also proposed by Naur, is data science ; this is now used for a multi-disciplinary field of data analysis, including statistics and databases. In the early days of computing,
8316-443: The two fields in areas such as mathematical logic , category theory , domain theory , and algebra . The relationship between computer science and software engineering is a contentious issue, which is further muddied by disputes over what the term "software engineering" means, and how computer science is defined. David Parnas , taking a cue from the relationship between other engineering and science disciplines, has claimed that
8415-481: The type of information carrier – whether it is electrical, mechanical or biological. This field plays important role in information theory , telecommunications , information engineering and has applications in medical image computing and speech synthesis , among others. What is the lower bound on the complexity of fast Fourier transform algorithms? is one of the unsolved problems in theoretical computer science . Scientific computing (or computational science)
8514-488: The university with a platform for high-speed computing. CALDIC was designed to be constructed at a low cost and simple to operate, by standards of the time, note that in a pre-1965 context there is no interactive user IO or human readable output in printed characters in most computers. There is no human readable user interface. It was a serial decimal machine with an 8-inch-diameter (200 mm), 10,000-word magnetic drum memory. (As CALDIC's decimal words were 10 digits each,
8613-603: The user interface of Augment. In December 2000, United States President Bill Clinton awarded Engelbart the National Medal of Technology, the U.S.'s highest technology award. In December 2008, Engelbart was honored by SRI at the 40th anniversary of the "Mother of All Demos". Engelbart was born in Portland, Oregon , on January 30, 1925, to Carl Louis Engelbart and Gladys Charlotte Amelia Munson Engelbart. His ancestors were of German , Swedish and Norwegian descent. He
8712-438: The way by which the central processing unit performs internally and accesses addresses in memory. Computer engineers study computational logic and design of computer hardware, from individual processor components, microcontrollers , personal computers to supercomputers and embedded systems . The term "architecture" in computer literature can be traced to the work of Lyle R. Johnson and Frederick P. Brooks Jr. , members of
8811-528: The younger programmers came from an era where centralized power was highly suspect, and personal computing was just barely on the horizon. Beginning in 1972, several key ARC personnel were involved in Erhard Seminars Training (EST), with Engelbart ultimately serving on the corporation's board of directors for many years. Although EST had been recommended by other researchers, the controversial nature of EST and other social experiments reduced
8910-440: Was IBM's first laboratory devoted to pure science. The lab is the forerunner of IBM's Research Division, which today operates research facilities around the world. Ultimately, the close relationship between IBM and Columbia University was instrumental in the emergence of a new scientific discipline, with Columbia offering one of the first academic-credit courses in computer science in 1946. Computer science began to be established as
9009-739: Was a member of Sigma Phi Epsilon social fraternity. He was hired by the National Advisory Committee for Aeronautics at the Ames Research Center , where he worked in wind tunnel maintenance. In his off hours he enjoyed hiking, camping, and folk dancing. It was there he met Ballard Fish (August 18, 1928 – June 18, 1997), who was just completing her training to become an occupational therapist. They were married in Portola State Park on May 5, 1951. Soon after, Engelbart left Ames to pursue graduate studies at
9108-544: Was also in the calculator business to develop his giant programmable calculator, the ASCC/Harvard Mark I , based on Babbage's Analytical Engine, which itself used cards and a central computing unit. When the machine was finished, some hailed it as "Babbage's dream come true". During the 1940s, with the development of new and more powerful computing machines such as the Atanasoff–Berry computer and ENIAC ,
9207-640: Was called The Unfinished Revolution – II , also known as the Engelbart Colloquium at Stanford University, to document and publicize his work and ideas to a larger audience (live, and online). In December 2000, U.S. President Bill Clinton awarded Engelbart the National Medal of Technology , the country's highest technology award. In 2001 he was awarded the British Computer Society 's Lovelace Medal . In 2005, he
9306-523: Was held at the Tech Museum of Innovation . Engelbart died at his home in Atherton, California, on July 2, 2013, due to kidney failure . A close friend and fellow computer scientist, Ted Nelson , gave a speech paying tribute to Engelbart. According to the Doug Engelbart Institute, his death came after a long battle with Alzheimer's disease , which he was diagnosed with in 2007. Engelbart was 88 and
9405-569: Was honored at the 40th Anniversary celebration of the 1968 " Mother of All Demos ". The event was produced by SRI International and held at Memorial Auditorium at Stanford University. Speakers included several members of Engelbart's original Augmentation Research Center (ARC) team including Don Andrews, Bill Paxton, Bill English, and Jeff Rulifson , Engelbart's chief government sponsor Bob Taylor , and other pioneers of interactive computing, including Andy van Dam and Alan Kay . In addition, Christina Engelbart spoke about her father's early influences and
9504-647: Was made a Fellow of the Computer History Museum "for advancing the study of human–computer interaction, developing the mouse input device, and for the application of computers to improving organizational efficiency." He was honored with the Norbert Wiener Award , which is given annually by Computer Professionals for Social Responsibility . Robert X. Cringely did an hour-long interview with Engelbart on December 9, 2005, in his NerdTV video podcast series. On December 9, 2008, Engelbart
9603-550: Was survived by his second wife, the four children from his first marriage, and nine grandchildren. Historian of science Thierry Bardini argues that Engelbart's complex personal philosophy (which drove all his research) foreshadowed the modern application of the concept of coevolution to the philosophy and use of technology. Bardini points out that Engelbart was strongly influenced by the principle of linguistic relativity developed by Benjamin Lee Whorf . Where Whorf reasoned that
9702-555: Was the middle of three children, with a sister Dorianne (three years older), and a brother David (14 months younger). The family lived in Portland, Oregon, in his early years, and moved to the surrounding countryside along Johnson Creek when he was 8. His father died one year later. He graduated from Portland's Franklin High School in 1942. Midway through his undergraduate years at Oregon State University , he served two years in
9801-641: Was transferred from SRI to Tymshare in the late 1970s, which was acquired by McDonnell Douglas in 1984, and NLS was renamed Augment (now the Doug Engelbart Institute). At both Tymshare and McDonnell Douglas, Engelbart was limited by a lack of interest in his ideas and funding to pursue them and retired in 1986. In 1988, Engelbart and his daughter Christina launched the Bootstrap Institute – later known as The Doug Engelbart Institute – to promote his vision, especially at Stanford University; this effort did result in some DARPA funding to modernize
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