A Short History of Computing
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Simulating Physics with Computers
International Journal of Theoretical Physics, VoL 21, Nos. 6/7, 1982 Simulating Physics with Computers Richard P. Feynman Department of Physics, California Institute of Technology, Pasadena, California 91107 Received May 7, 1981 1. INTRODUCTION On the program it says this is a keynote speech--and I don't know what a keynote speech is. I do not intend in any way to suggest what should be in this meeting as a keynote of the subjects or anything like that. I have my own things to say and to talk about and there's no implication that anybody needs to talk about the same thing or anything like it. So what I want to talk about is what Mike Dertouzos suggested that nobody would talk about. I want to talk about the problem of simulating physics with computers and I mean that in a specific way which I am going to explain. The reason for doing this is something that I learned about from Ed Fredkin, and my entire interest in the subject has been inspired by him. It has to do with learning something about the possibilities of computers, and also something about possibilities in physics. If we suppose that we know all the physical laws perfectly, of course we don't have to pay any attention to computers. It's interesting anyway to entertain oneself with the idea that we've got something to learn about physical laws; and if I take a relaxed view here (after all I'm here and not at home) I'll admit that we don't understand everything. -
Microprocessors History of Computing Nouf Assaid
MICROPROCESSORS HISTORY OF COMPUTING NOUF ASSAID 1 Table of Contents Introduction 2 Brief History 2 Microprocessors 7 Instruction Set Architectures 8 Von Neumann Machine 9 Microprocessor Design 12 Superscalar 13 RISC 16 CISC 20 VLIW 23 Multiprocessor 24 Future Trends in Microprocessor Design 25 2 Introduction If we take a look around us, we would be sure to find a device that uses a microprocessor in some form or the other. Microprocessors have become a part of our daily lives and it would be difficult to imagine life without them today. From digital wrist watches, to pocket calculators, from microwaves, to cars, toys, security systems, navigation, to credit cards, microprocessors are ubiquitous. All this has been made possible by remarkable developments in semiconductor technology enabling in the last 30 years, enabling the implementation of ideas that were previously beyond the average computer architect’s grasp. In this paper, we discuss the various microprocessor technologies, starting with a brief history of computing. This is followed by an in-depth look at processor architecture, design philosophies, current design trends, RISC processors and CISC processors. Finally we discuss trends and directions in microprocessor design. Brief Historical Overview Mechanical Computers A French engineer by the name of Blaise Pascal built the first working mechanical computer. This device was made completely from gears and was operated using hand cranks. This machine was capable of simple addition and subtraction, but a few years later, a German mathematician by the name of Leibniz made a similar machine that could multiply and divide as well. After about 150 years, a mathematician at Cambridge, Charles Babbage made his Difference Engine. -
Biographies of Computer Scientists
1 Charles Babbage 26 December 1791 (London, UK) – 18 October 1871 (London, UK) Life and Times Charles Babbage was born into a wealthy family, and started his mathematics education very early. By . 1811, when he went to Trinity College, Cambridge, he found that he knew more mathematics then his professors. He moved to Peterhouse, Cambridge from where he graduated in 1814. However, rather than come second to his friend Herschel in the final examinations, Babbage decided not to compete for an honors degree. In 1815 he co-founded the Analytical Society dedicated to studying continental reforms of Newton's formulation of “The Calculus”. He was one of the founders of the Astronomical Society in 1820. In 1821 Babbage started work on his Difference Engine designed to accurately compile tables. Babbage received government funding to construct an actual machine, but they stopped the funding in 1832 when it became clear that its construction was running well over-budget George Schuetz completed a machine based on the design of the Difference Engine in 1854. On completing the design of the Difference Engine, Babbage started work on the Analytical Engine capable of more general symbolic manipulations. The design of the Analytical Engine was complete in 1856, but a complete machine would not be constructed for over a century. Babbage's interests were wide. It is claimed that he invented cow-catchers for railway engines, the uniform postal rate, a means of recognizing lighthouses. He was also interested in locks and ciphers. He was politically active and wrote many treatises. One of the more famous proposed the banning of street musicians. -
Analytical Engine, 1838 ALLAN G
Charles Babbage’s Analytical Engine, 1838 ALLAN G. BROMLEY Charles Babbage commenced work on the design of the Analytical Engine in 1834 following the collapse of the project to build the Difference Engine. His ideas evolved rapidly, and by 1838 most of the important concepts used in his later designs were established. This paper introduces the design of the Analytical Engine as it stood in early 1838, concentrating on the overall functional organization of the mill (or central processing portion) and the methods generally used for the basic arithmetic operations of multiplication, division, and signed addition. The paper describes the working of the mechanisms that Babbage devised for storing, transferring, and adding numbers and how they were organized together by the “microprogrammed” control system; the paper also introduces the facilities provided for user- level programming. The intention of the paper is to show that an automatic computing machine could be built using mechanical devices, and that Babbage’s designs provide both an effective set of basic mechanisms and a workable organization of a complete machine. Categories and Subject Descriptors: K.2 [History of Computing]- C. Babbage, hardware, software General Terms: Design Additional Key Words and Phrases: Analytical Engine 1. Introduction 1838. During this period Babbage appears to have made no attempt to construct the Analytical Engine, Charles Babbage commenced work on the design of but preferred the unfettered intellectual exploration of the Analytical Engine shortly after the collapse in 1833 the concepts he was evolving. of the lo-year project to build the Difference Engine. After 1849 Babbage ceased designing calculating He was at the time 42 years o1d.l devices. -
Women in Computing
History of Computing CSE P590A (UW) PP190/290-3 (UCB) CSE 290 291 (D00) Women in Computing Katherine Deibel University of Washington [email protected] 1 An Amazing Photo Philadelphia Inquirer, "Your Neighbors" article, 8/13/1957 2 Diversity Crisis in Computer Science Percentage of CS/IS Bachelor Degrees Awarded to Women National Center for Education Statistics, 2001 3 Goals of this talk ! Highlight the many accomplishments made by women in the computing field ! Learn their stories, both good and bad 4 Augusta Ada King, Countess of Lovelace ! Translated and extended Menabrea’s article on Babbage’s Analytical Engine ! Predicted computers could be used for music and graphics ! Wrote the first algorithm— how to compute Bernoulli numbers ! Developed notions of looping and subroutines 5 Garbage In, Garbage Out The Analytical Engine has no pretensions whatever to originate anything. It can do whatever we know how to order it to perform. It can follow analysis; but it has no power of anticipating any analytical relations or truths. — Ada Lovelace, Note G 6 On her genius and insight If you are as fastidious about the acts of your friendship as you are about those of your pen, I much fear I shall equally lose your friendship and your Notes. I am very reluctant to return your admirable & philosophic 'Note A.' Pray do not alter it… All this was impossible for you to know by intuition and the more I read your notes the more surprised I am at them and regret not having earlier explored so rich a vein of the noblest metal. -
Ada Lovelace the first Computer Programmer 1815 - 1852
Ada Lovelace The first computer programmer 1815 - 1852 Biography Ada Lovelace Day I Born on December 10th, 1815 in London as Augusta Ada Byron Each second Tuesday in October is Ada Lovelace Day. A day to raise the I Parents separated when she was a baby profile of women in science, technology, engineering, and maths to create new role models for girls and women in these fields. During this day the I Father Lord Byron was a poet and died when she was 8 years old accomplishments of those women are celebrated. I Mother Lady Wentworth was a social reformer I Descended from a wealthy family I Early interest in mathematics and science, encouraged by her mother Portrait I Obtained private classes and got in touch with intellectuals, e.g. Mary Sommerville who tutored her and later introduced Lovelace to Charles Babbage at the age of 17 I Married in 1835 William King at the age of 19, shortly after becoming the Countess of Lovelace I By 1839, she had given birth to 3 children I Continued studying maths, supported among others by Augustus De Morgan, a math professor in London who taught her via correspondence I In 1843, she published a translation of an Italian academic paper about Babbage's Analytical Engine and added her famous note section (see Contributions) I Died on November 27th, 1852 at the age of 36 Contributions I First computer programmer, roughly a century before the electronic computer I A two decade lasting correspondence with Babbage about his idea of an Analytical Engine I Developed an algorithm that would enable the Analytical Engine to calculate a sequence of Bernoulli numbers, unfortunately, the machine was never built I First person to realize the power of computer programs: Not only used for calculations with numbers I Combined arts and logic, calling it poetical science Figure 3:Ada Lovelace I First reflections about artificial intelligence, but she rejected the idea Bernoulli Numbers Quotes I Play an important role in several domains of mathematics, e.g. -
Lovelace & Babbage and the Creation of the 1843 'Notes'
Lovelace & Babbage and the Creation of the 1843 ‘Notes’ John Fuegi and Jo Francis Flare/MITH Augusta Ada Lovelace worked with Charles Babbage to create a description of Babbage’s unbuilt invention, the Analytical Engine, a highly advanced mechanical calculator often considered a forerunner of the electronic calculating computers of the 20th century. Ada Lovelace’s “Notes,” describing the Analytical Engine, published in Taylor’s Scientific Memoirs in 1843, contained a ground-breaking description of the possibilities of programming the machine to go beyond number-crunching to “computing” in the wider sense in which we understand the term today. This article expands on research first presented by the authors in their documentary film, To Dream Tomorrow. What shall we do to get rid of Mr. Babbage and known to have crossed the intellectual thresh- his calculating Machine? Surely if completed it old between conceptualizing computing as would be worthless as far as science is con- only for calculation on the one hand, and on cerned? the other hand, computing as we know it —British Prime Minister Sir Robert Peel, 18421 today: with wider applications made possible by symbolic substitution. The Analytical Engine does not occupy common In an early background interview at the ground with mere ‘calculating machines.’ … In Science Museum (London) for the historical enabling mechanism to combine together gen- documentary film about collaboration between eral symbols, in successions of unlimited variety Lovelace and Babbage, To Dream Tomorrow,3 and extent, a uniting link is established between Babbage authority Doron Swade mentioned the operations of matter and the abstract mental that he thought Babbage and Lovelace had processes of the most abstract branch of mathe- “very different qualities of mind.” Swade’s matical science. -
A Brief History of Computers
History of Computers http://www.cs.uah.edu/~rcoleman/Common/History/History.html A Brief History of Computers Where did these beasties come from? Ancient Times Early Man relied on counting on his fingers and toes (which by the way, is the basis for our base 10 numbering system). He also used sticks and stones as markers. Later notched sticks and knotted cords were used for counting. Finally came symbols written on hides, parchment, and later paper. Man invents the concept of number, then invents devices to help keep up with the numbers of his possessions. Roman Empire The ancient Romans developed an Abacus, the first "machine" for calculating. While it predates the Chinese abacus we do not know if it was the ancestor of that Abacus. Counters in the lower groove are 1 x 10 n, those in the upper groove are 5 x 10 n Industrial Age - 1600 John Napier, a Scottish nobleman and politician devoted much of his leisure time to the study of mathematics. He was especially interested in devising ways to aid computations. His greatest contribution was the invention of logarithms. He inscribed logarithmic measurements on a set of 10 wooden rods and thus was able to do multiplication and division by matching up numbers on the rods. These became known as Napier’s Bones. 1621 - The Sliderule Napier invented logarithms, Edmund Gunter invented the logarithmic scales (lines etched on metal or wood), but it was William Oughtred, in England who invented the sliderule. Using the concept of Napier’s bones, he inscribed logarithms on strips of wood and invented the calculating "machine" which was used up until the mid-1970s when the first hand-held calculators and microcomputers appeared. -
Finding a Story for the History of Computing 2018
Repositorium für die Medienwissenschaft Thomas Haigh Finding a Story for the History of Computing 2018 https://doi.org/10.25969/mediarep/3796 Angenommene Version / accepted version Working Paper Empfohlene Zitierung / Suggested Citation: Haigh, Thomas: Finding a Story for the History of Computing. Siegen: Universität Siegen: SFB 1187 Medien der Kooperation 2018 (Working paper series / SFB 1187 Medien der Kooperation 3). DOI: https://doi.org/10.25969/mediarep/3796. Erstmalig hier erschienen / Initial publication here: https://nbn-resolving.org/urn:nbn:de:hbz:467-13377 Nutzungsbedingungen: Terms of use: Dieser Text wird unter einer Creative Commons - This document is made available under a creative commons - Namensnennung - Nicht kommerziell - Keine Bearbeitungen 4.0/ Attribution - Non Commercial - No Derivatives 4.0/ License. For Lizenz zur Verfügung gestellt. Nähere Auskünfte zu dieser Lizenz more information see: finden Sie hier: https://creativecommons.org/licenses/by-nc-nd/4.0/ https://creativecommons.org/licenses/by-nc-nd/4.0/ Finding a Story for the History of Computing Thomas Haigh University of Wisconsin — Milwaukee & University of Siegen WORKING PAPER SERIES | NO. 3 | JULY 2018 Collaborative Research Center 1187 Media of Cooperation Sonderforschungsbereich 1187 Medien der Kooperation Working Paper Series Collaborative Research Center 1187 Media of Cooperation Print-ISSN 2567 – 2509 Online-ISSN 2567 – 2517 URN urn :nbn :de :hbz :467 – 13377 This work is licensed under the Creative Publication of the series is funded by the German Re- Commons Attribution-NonCommercial- search Foundation (DFG). No Derivatives 4.0 International License. The Arpanet Logical Map, February, 1978 on the titl e This Working Paper Series is edited by the Collabora- page is taken from: Bradley Fidler and Morgan Currie, tive Research Center Media of Cooperation and serves “Infrastructure, Representation, and Historiography as a platform to circulate work in progress or preprints in BBN’s Arpanet Maps”, IEEE Annals of the History of in order to encourage the exchange of ideas. -
Milestones in Analog and Digital Computing
Milestones in Analog and Digital Computing Contributions to the History of Mathematics and Information Technology by Herbert Bruderer Numerous recent discoveries of rare historical analog and digital calculators and previously unknown texts, drawings, and pictures from Germany, Austria, Switzerland, Liechtenstein, and France. Worldwide, multilingual bibliography regarding the history of computer science with over 3000 entries. 12 step-by-step set of instructions for the operation of historical analog and digital calculating devices. 75 comparative overviews in tabular form. 200 illustrations. 20 comprehensive lists. 7 timelines of computer history. Published by de Gruyter Oldenbourg. Berlin/Boston 2015, xxxii, 820 pages, 119.95 Euro. During the 1970's mechanical calculating instruments and machines suddenly disappeared from the scene. They were replaced by electronic versions. Most of these devices developed since the 17th century – often very clever constructions – have been forgotten. Who can imagine today how difficult calculation was only a few decades ago? This book introduces the reader to selected milestones from prehistory and early history of computing. The Antikythera Mechanism This puzzling device was made around 200 BC. It was discovered around 1900 by divers off the Greek island of Antikythera. It is believed to be the oldest known analog (or rather hybrid) computing device. Numerous replicas have been built to unravel the mysteries of this calendar calculator. It is suspected that the machine came from the school of Archimedes. 1 Androids, Music Boxes, Chess Automatons, Looms This treatise also explores topics related to computing technology: automated human and animal figures, mecha- nized musical instruments, music boxes, as well as punched tape controlled looms and typewriters. -
The History of Computing in the History of Technology
The History of Computing in the History of Technology Michael S. Mahoney Program in History of Science Princeton University, Princeton, NJ (Annals of the History of Computing 10(1988), 113-125) After surveying the current state of the literature in the history of computing, this paper discusses some of the major issues addressed by recent work in the history of technology. It suggests aspects of the development of computing which are pertinent to those issues and hence for which that recent work could provide models of historical analysis. As a new scientific technology with unique features, computing in turn can provide new perspectives on the history of technology. Introduction record-keeping by a new industry of data processing. As a primary vehicle of Since World War II 'information' has emerged communication over both space and t ime, it as a fundamental scientific and technological has come to form the core of modern concept applied to phenomena ranging from information technolo gy. What the black holes to DNA, from the organization of English-speaking world refers to as "computer cells to the processes of human thought, and science" is known to the rest of western from the management of corporations to the Europe as informatique (or Informatik or allocation of global resources. In addition to informatica). Much of the concern over reshaping established disciplines, it has information as a commodity and as a natural stimulated the formation of a panoply of new resource derives from the computer and from subjects and areas of inquiry concerned with computer-based communications technolo gy. -
Pioneers of Computing
Pioneers of Computing В 1980 IEEE Computer Society учредило Золотую медаль (бронзовую) «Вычислительный Пионер» Пионерами учредителями стали 32 члена IEEE Computer Society, связанных с работами по информатике и вычислительным наукам. 1 Pioneers of Computing 1.Howard H. Aiken (Havard Mark I) 2.John V. Atanasoff 3.Charles Babbage (Analytical Engine) 4.John Backus 5.Gordon Bell (Digital) 6.Vannevar Bush 7.Edsger W. Dijkstra 8.John Presper Eckert 9.Douglas C. Engelbart 10.Andrei P. Ershov (theroretical programming) 11.Tommy Flowers (Colossus engineer) 12.Robert W. Floyd 13.Kurt Gödel 14.William R. Hewlett 15.Herman Hollerith 16.Grace M. Hopper 17.Tom Kilburn (Manchester) 2 Pioneers of Computing 1. Donald E. Knuth (TeX) 2. Sergei A. Lebedev 3. Augusta Ada Lovelace 4. Aleksey A.Lyapunov 5. Benoit Mandelbrot 6. John W. Mauchly 7. David Packard 8. Blaise Pascal 9. P. Georg and Edvard Scheutz (Difference Engine, Sweden) 10. C. E. Shannon (information theory) 11. George R. Stibitz 12. Alan M. Turing (Colossus and code-breaking) 13. John von Neumann 14. Maurice V. Wilkes (EDSAC) 15. J.H. Wilkinson (numerical analysis) 16. Freddie C. Williams 17. Niklaus Wirth 18. Stephen Wolfram (Mathematica) 19. Konrad Zuse 3 Pioneers of Computing - 2 Howard H. Aiken (Havard Mark I) – США Создатель первой ЭВМ – 1943 г. Gene M. Amdahl (IBM360 computer architecture, including pipelining, instruction look-ahead, and cache memory) – США (1964 г.) Идеология майнфреймов – система массовой обработки данных John W. Backus (Fortran) – первый язык высокого уровня – 1956 г. 4 Pioneers of Computing - 3 Robert S. Barton For his outstanding contributions in basing the design of computing systems on the hierarchical nature of programs and their data.