Computing History Timeline

Computing History Timeline

o commemorate the 50th year of T modern computing and the Computer Society, the timeline on the following pages traces the evolution of computing and computer technology. Timeline research by Bob Carlson, Angela Burgess, and Christine Miller. Timeline design and production by Larry Bauer. We thank our reviewers: Ted Biggerstaff, George Cybenko, Martin Campbell-Kelly, Alan Davis, Dan O’Leary, Edward Parrish, and Michael Williams. Timeline of Computing History 4000-1200 B.C. Inhabitants of 3000 B.C. The abacus is invented the first known in Babylonia. civilization in Sumer keep records of 250-230 B.C. The Sieve of commercial Eratosthenes is used to determine transactions on prime numbers. clay tablets. About 79 A.D. The “Antikythera IBM Archives Device,” when set correctly About 1300 The more familiar wire- according to latitude and day of and-bead abacus replaces the Chinese The University Museum, of Pennsylvania the week, gives alternating calculating rods. 29- and 30-day lunar months. 4000 B.C. — 1300 1612-1614 John Napier uses the printed decimal point, devises logarithms, and 1622 William Oughtred 1666 In uses numbered sticks, or Napiers Bones, invents the circular England, for calculating. slide rule on the basis Samuel of Napier’s logarithms. Morland produces a mechanical calculator 1623 William (Wilhelm) that can add Schickard designs a and subtract. “calculating clock” with a gear-driven carry mechanism to aid in The Computer Museum multiplication of multi- 1642-1643 Blaise Pascal creates a gear-driven digit numbers. adding machine called the “Pascalene,” the The Computer Museum first mechanical adding machine. 1600s 1801 A linked sequence of punched cards controls the weaving of patterns in Joseph-Marie Jacquard’s loom. 1774 Philipp-Matthaus Hahn builds and sells a small number of calculating machines precise to 12 digits. 1777 The third Earl of Stanhope invents a multiplying calculator. IBM Archives 1674 Gottfried Leibniz builds the 1786 J.H. Mueller envisions a “Stepped Reckoner,” a calculator using “difference engine” but cannot a stepped cylindrical gear. get the funds to build it. IBM Archives 1674-1801 1822 Charles Babbage 1820 The Thomas begins to design and Arithmometer, based build the Difference on Leibniz’ stepped- Engine. drum principle, is demonstrated to the French Academy of Science. It becomes the first mass-produced calculator and sells for many years. IBM Archives 1811 Luddites destroy machinery that threatens to eliminate jobs. 1811 — 1822 1832 Babbage and 1834-35 Babbage shifts his focus to Joseph Clement designing the Analytical Engine. produce a portion of the Difference Engine. 1838 In January 1829 William Samuel Morse Austin Burt patents and Alfred Vail an awkward but demonstrate workable typewriter, elements of the the first writing telegraph system. machine in America. IBM Archives IBM Archives 1829 — 1838 1842-43 Augusta Ada, 1847-49 Babbage completes 21 drawings for Countess of Lovelace, the second version of the Difference Engine translates Luigi but does not complete construction. Menabrea’s pamphlet on the Analytical Engine, adding her own commentary. 1854 George Boole publishes “An 1844 Samuel Investigation Morse sends a of the Laws of telegraph Thought,” message from describing a system for symbolic and Washington to logical reasoning that will become The Computer Museum Baltimore. Smithsonian Institution Photo No. 89-22161 the basis for computer design. 1842 — 1854 1876 Alexander 1876-1878 Baron 1858 A Graham Bell Kelvin builds a telegraph invents and harmonic analyzer cable spans patents the and tide predictor. the Atlantic telephone. Ocean for the first time and provides service for a few days. National Inventors Hall of Fame Charles Babbage Institute, University of Minnesota, Minneapolis 1861 A transcontinental 1882 William S. Burroughs telegraph line connects the leaves his bank clerk’s job Atlantic and Pacific coasts. determined to invent an Smithsonian Institution Photo No. adding machine. Smithsonian Institution 1858 — 1882 1893 The first 1901 The four-function keypunch calculator is appears and invented. changes very little over the 1895 Guglielmo next half Marconi transmits century. a radio signal. The Computer Museum 1889 Herman Hollerith’s Electric Tabulating Sys- tem outperforms the competition and in the fall IBM Archives is selected for use in the 1890 census. 1896 Hollerith establishes the Tabulating Machine Company. 1889 — 1901 1906 Lee de Forest adds a third valve to 1911 Hollerith’s Tabulating Machines Co. and control current flow to Fleming’s diode to two other companies combine to form C-T-R— create the three-electrode vacuum tube. Calculating, Tabulating, and 1907 Gramophone music Recording Co. constitutes the first regular radio broadcasts from New York. 1908 British scientist 1911 Dutch Campbell Swinton physicist describes an electronic Kamerlingh 1904 John scanning method and Onnes at Leiden A. Fleming foreshadows use of the University patents the Smithsonian Institution Photo No. 351 cathode-ray tube for discovers diode vacuum tube, setting the stage television. superconductivity. for better radio communication. IBM Archives 1904 — 1911 1915 Use of microchips is foreshadowed as physicist Manson Benedicks discovers that the germanium crystal can be used to convert alternating current to direct current. 1919 Eccles and Jordan, US physicists, invent the flip-flop electronic switching circuit critical to high-speed electronic IBM Archives 1912 The Institute counting systems. 1924 T.J. Watson of Radio Engineers, renames CTR which will eventually to IBM and merge with other 1920-1921 The word “robot” (derived from popularizes the organizations to the Czech word for compulsory labor) is first “Think” slogan he form the IEEE, used by Karel Câpek in his play RUR (Rossum’s coined at National is established. Universal Robots). Cash Register. IBM Archives 1912 — 1924 1934 In Germany, Konrad 1927 Herbert Hoover’s face 1930 The Differential Zuse seeks to build a better is seen on screen during Analyzer, devised by calculating machine than the first demonstration of Vannevar Bush and those currently available. television in the US. colleagues at MIT, solves Accompanying voice various differential transmission uses equations. telephone wires. 1928 The quartz crystal 1931 Reynold B. Johnson, clock makes possible a high school teacher in unprecedented time- Michigan, devises a way to keeping accuracy. score multiple-choice tests by sensing conductive 1929 Color television Center for the History of Electrical Engineering pencil marks on answer signals are successfully sheets. IBM later buys the transmitted. technology. 1927 — 1934 1935 IBM introduces not 1937 Howard Aiken submits only the 601 multiplying to IBM a proposal for a digital punch-card machine but calculating machine capable of also an electric typewriter. performing the four fundamental operations of arithmetic and operating in a predetermined 1936 Konrad Zuse realizes sequence. that programs composed of bit combinations can 1937 Claude Shannon be stored, and he files a publishes the principles for an patent application in electric adder to the base two. Germany for the IBM Archives automatic execution of 1937 George Stibitz develops calculations, including a a binary circuit based on IBM Archives “combination memory.” Boolean algebra. 1935 — 1937 1939 Working from October through November, 1937 Alan John Vincent Atanasoff, with help from graduate Turing’s student Clifford E. Berry, builds paper “On a prototype Computable electronic-digital Numbers” computer that presents the uses binary concept of arithmetic. the Turing machine. 1938 Zuse completes the Z1 Iowa State University HP Company Archives electromechanical 1937 John Vincent Atanasoff binary computer spends the winter devising the 1938 William Hewlett and and refines the principles for an electronic- David Packard form Hewlett- design with the digital computer. Packard in a garage in Palo Alto, Z2. Iowa State University California. 1937— 1939 1940 Konrad Zuse completes the Z2, which 1944 The Harvard Mark I (a.k.a. IBM uses telephone relays instead of mechanical Automatic Sequence Controlled logical circuits. Calculator [ASCC]), produced by Howard Aiken, is dedicated at Harvard 1941 Zuse completes the Z3, the first University on August 7, 1944. fully functional program-controlled electromechanical digital computer. 1943 On May 31, 1943, con- 1943 In December, struction begins on the Colossus, a British ENIAC at the Moore School vacuum tube of Electrical Engineering in computer, becomes Philadelphia. operational Bletchley Park Museum at Bletchley Park through the combined efforts of Alan Turing, Tommy Flowers, and M.H.A. Newman. It is considered the first all-electronic calculating device. IBM Archives 1940 — 1944 1945 J. Presper 1945 John von Eckert and John Neumann introduces Mauchly sign a the concept of a stored contract to build the program in a June 30 EDVAC (Electronic draft report on the Discrete Variable EDVAC design. Automatic 1945 Working on a prototype of the Mark II, Computer). 1945 Zuse’s Z4 survives in the summer Grace Murray Hopper finds the World War II and helps first computer “bug,” a moth that had caused launch postwar devel- a relay failure. 1945 By spring of opment of scientific the year, ENIAC is computers in Germany. 1945 In July, Vannevar Bush’s As up and running. We May Think is published in the IEEE Annals of History Computing Atlantic Monthly. 1945 1946 The American Institute of Electrical Engineers establishes a Subcommittee

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