The Analytical Engine NEWSLETTER of the COMPUTER HISTORY ASSOCIATION of CALIFORNIA
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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. -
Who Invented the Computer?
Who Invented the Computer? AP This story comes from VOA Special English, Voice of America's daily news and information service for English learners. Read the story and then do the activities in the worksheet at the end. Millions of us use them every day. Some are so large they have to sit on the floor. Others are so small that they fit in our hand. They help us with mathematical problems, store our music and pictures, and are needed to search the Internet. They are, of course, computers. So try this experiment. Ask a friend or just someone you see on the street this question: “Who invented the computer?” Some people cannot live without computers, but we know very little about who invented them. So who did it? Are you ready? The answer is … we do not know for sure. Many people who know a lot about information technology might say computers were invented by Alan Turing. He was a British mathematician who helped solve coded messages from Germany during World War Two. Many people consider him the “father of computer science.” But to find the first person who thought he could make a computing device, we have to go back one hundred eighty years to a man named Charles Babbadge. He also was British. Special English is part of VOA Learning English: voanews.com/learningenglish | December 2011 | 1 Recently, researchers in his home country announced plans to use millions of dollars to build one of Babbadge’s “Analytical Engines.” John Graham- Cumming and Doron Swade are supervising the project at the Science Museum in London. -
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. -
Analytical Engine: the Orig- Inal Computer
Chapter 2 Analytical Engine: The Orig- inal Computer As we learned in the fourth grade science course, back in 1801, a French man, Joseph Marie Jacquard, invented a power loom that could weave textiles, which had been done for a long time by hand. More interestingly, this machine can weave tex- tiles with patterns such as brocade, damask, and matelasse by controlling the operation with punched wooden cards, held together in a long row by rope. 1 How do these cards work? Each wooden card comes with punched holes, each row of which corresponds to one row of the design. In each position, if the needle needs to go through, there is a hole; other- wise, there is no hole. Multiple rows of holes are punched on each card and all the cards that compose the design of the textile are hooked together in order. 2 What do we get? With the control of such cards, needs go back and forth, moving from left to the right, row by row, and come up with something like the following: Although the punched card concept was based on some even earlier invention by Basile Bou- chon around 1725, “the Jacquard loom was the first machine to use punch cards to con- trol a sequence of operations”. Let’s check out a little demo as how Jacquard’s machine worked. 3 Why do we talk about a loom? With Jacquard loom, if you want to switch to a different pattern, you simply change the punched cards. By the same token, with a modern computer, if you want it to run a different application, you simply load it with a different program, which used to keep on a deck of paper based punched cards. -
Who Was Charles Babbage?
Click here for Full Issue of EIR Volume 27, Number 20, May 19, 2000 EIRBooks Who Was Charles Babbage? by Lyndon H. LaRouche, Jr. of the Analytical Engine that was under construction at the time of Babbage’s death, all he ever built of that The Cogwheel Brain revolutionary machine. Its modest size gives little clue by Doron Swade to the monumental intellectual accomplishment of its London: Little, Brown, 2000 conception and its much publicized role as the symbolic 342 pages, hardbound, £14.99 antecedent of the modern computer.” That part of Swade’s account, covering the period from May 11, 2000 the launching of the Science Museum’s Babbage project, from May 20, 1985 through the public demonstration of No- The specific merit in Doron Swade’s new assessment of vember 29, 1991, occupies the concluding, third section of his Charles Babbage’s role in the development of modern mathe- book, which is subtitled: “A Modern Sequel.” For qualified matical computing machines, lies in Swade’s notable part in specialists familiar with earlier standard sources on Bab- the actual construction of a machine according to Babbage’s bage’s life and work, the useful contribution of Swade’s book, own designs. Swade describes the circumstances leading into lies almost entirely in the content of that third section. the first public demonstration, which was made in London, The misleading elements in the earlier part of Swade’s on Friday, November 29, 1991, three days after inventor Bab- book as a whole, lie in his fallacy of composition. Instead of bage’s 200th birthday. -
Ada and the First Computer
Ada and the First Computer The collaboration between Ada, countess of Lovelace, and computer pioneer Charles Babbage resulted in a landmark publication that described how to program the world’s first computer by Eugene Eric Kim and Betty Alexandra Toole eople called Augusta Ada King’s father “mad and bad” for his wild ways, but he was better known as Lord Byron, the poet. Ada inherited her famous father’s P way with words and his zest for life. She was a beautiful, flirtatious woman who hobnobbed with England’s elite and who died at the youthful age of 36, the same age at which her father died. And like Byron, Ada is best known for something she wrote. In 1843 she published an influential set of notes that described Charles Babbage’s An- alytical Engine, the first automatic, general-purpose computing machine ever designed. Although the Analytical Engine was never built—largely because Babbage could not raise the funds for its construction—Ada’s notes included a program for using it to com- pute a series of figures called Bernoulli numbers [see box on page 78]. Ada’s notes established her importance in computer science, but her fascinating life and lineage—and her role as a female pioneer in a field in which women have always been notoriously underrepresented—have lately turned her into an icon. In addition to numerous biographies, she has inspired plays and novels written by the likes of such lu- minaries as Tom Stoppard and Arthur C. Clarke. Conceiving Ada, a movie loosely based on her life, was released by Fox Lorber in February. -
Publications Core Magazine, 2007 Read
CA PUBLICATIONo OF THE COMPUTERre HISTORY MUSEUM ⁄⁄ SPRINg–SUMMER 2007 REMARKABLE PEOPLE R E scuE d TREAsuREs A collection saved by SAP Focus on E x TRAORdinARy i MAGEs Computers through the Robert Noyce lens of Mark Richards PUBLISHER & Ed I t o R - I n - c hie f THE BEST WAY Karen M. Tucker E X E c U t I V E E d I t o R TO SEE THE FUTURE Leonard J. Shustek M A n A GI n G E d I t o R OF COMPUTING IS Robert S. Stetson A S S o c IA t E E d I t o R TO BROWSE ITS PAST. Kirsten Tashev t E c H n I c A L E d I t o R Dag Spicer E d I t o R Laurie Putnam c o n t RIBU t o RS Leslie Berlin Chris garcia Paula Jabloner Luanne Johnson Len Shustek Dag Spicer Kirsten Tashev d E S IG n Kerry Conboy P R o d U c t I o n ma n ager Robert S. Stetson W E BSI t E M A n AGER Bob Sanguedolce W E BSI t E d ESIG n The computer. In all of human history, rarely has one invention done Dana Chrisler so much to change the world in such a short time. Ton Luong The Computer History Museum is home to the world’s largest collection computerhistory.org/core of computing artifacts and offers a variety of exhibits, programs, and © 2007 Computer History Museum. -
A Short History of Computing
A Short History of Computing 01/15/15 1 Jacques de Vaucanson 1709-1782 • Gifted French artist and inventor • Son of a glove-maker, aspired to be a clock- maker • 1727-1743 – Created a series of mechanical automations that simulated life. • Best remembered is the “Digesting Duck”, which had over 400 parts. • Also worked to automate looms, creating the first automated loom in 1745. 01/15/15 2 1805 - Jacquard Loom • First fully automated and programmable loom • Used punch cards to “program” the pattern to be woven into cloth 01/15/15 3 Charles Babbage 1791-1871 • English mathematician, engineer, philosopher and inventor. • Originated the concept of the programmable computer, and designed one. • Could also be a Jerk. 01/15/15 4 1822 – Difference Engine Numerical tables were constructed by hand using large numbers of human “computers” (one who computes). Annoyed by the many human errors this produced, Charles Babbage designed a “difference engine” that could calculate values of polynomial functions. It was never completed, although much work was done and money spent. Book Recommendation: The Difference Engine: Charles Babbage and the Quest to Build the First Computer by Doron Swade 01/15/15 5 1837 – Analytical Engine Charles Babbage first described a general purpose analytical engine in 1837, but worked on the design until his death in 1871. It was never built due to lack of manufacturing precision. As designed, it would have been programmed using punch-cards and would have included features such as sequential control, loops, conditionals and branching. If constructed, it would have been the first “computer” as we think of them today. -
NVS 3-1-2 P-Jagoda
Clacking Control Societies: Steampunk, History, and the Difference Engine of Escape Patrick Jagoda (University of Chicago, Illinois, USA) Abstract: Steampunk fiction uses strategic anachronism, counterfactual scenarios, and historical contingency in order to explore the interconnections between nineteenth-century and contemporary techno-scientific culture. William Gibson and Bruce Sterling’s novel The Difference Engine (1990), a prominent exemplar of this contemporary genre, depicts a neo- Victorian setting in which the inventor Charles Babbage builds a proto-computer based on the “Analytical Engine” design that he proposed but never actually constructed in our own nineteenth century. The alternative chronology of the novel re-imagines Victorian texts and historical events, including Benjamin Disraeli’s Sybil (1845) and the industrial revolution, in order to examine literary history and investigate historiography. This essay analyses The Difference Engine ’s commentary on the history of power relations. It contends that the novel’s alternative genealogy helps us examine the evolution of control systems and think about the shape of history. Keywords : biopolitics, control, The Difference Engine , William Gibson, historiography, power, self-reflexivity, steampunk, Bruce Sterling, technology. ***** Verily it was another world then…. Another world, truly: and this present poor distressed world might get some profit by looking wisely into it, instead of foolishly. (Thomas Carlyle, Past and Present [1843], 2009: 53-54) “But then Stephen does -
Introduction to Computing: Explorations in Language, Logic, And
6 Machines It is unworthy of excellent people to lose hours like slaves in the labor of calculation which could safely be relegated to anyone else if machines were used. Gottfried Wilhelm von Leibniz, 1685 The first five chapters focused on ways to use language to describe procedures. Although finding ways to describe procedures succinctly and precisely would be worthwhile even if we did not have machines to carry out those procedures, the tremendous practical value we gain from being able to describe procedures comes from the ability of computers to carry out those procedures astoundingly quickly, reliably, and inexpensively. As a very rough approximation, a typical laptop gives an individual computing power comparable to having every living human on the planet working for you without ever making a mistake or needing a break. This chapter introduces computing machines. Computers are different from other machines in two key ways: 1. Whereas other machines amplify or extend our physical abilities, comput- ers amplify and extend our mental abilities. 2. Whereas other machines are designed for a few specific tasks, computers can be programmed to perform many tasks. The simple computer model introduced in this chapter can perform all possible computations. The next section gives a brief history of computing machines, from prehistoric calculating aids to the design of the first universal computers. Section 6.2 ex- plains how machines can implement logic. Section 6.3 introduces a simple ab- stract model of a computing machine that is powerful enough to carry out any algorithm. We provide only a very shallow introduction to how machines can implement computations. -
History of ENIAC
A Short History of the Second American Revolution by Dilys Winegrad and Atsushi Akera (1) Today, the northeast corner of the old Moore School building at the University of Pennsylvania houses a bank of advanced computing workstations maintained by the professional staff of the Computing and Educational Technology Service of Penn's School of Engineering and Applied Science. There, fifty years ago, in a larger room with drab- colored walls and open rafters, stood the first general purpose electronic computer, the Electronic Numerical Integrator And Computer, or ENIAC. It spanned 150 feet in width with twenty banks of flashing lights indicating the results of its computations. ENIAC could add 5,000 numbers or do fourteen 10-digit multiplications in a second-- dead slow by present-day standards, but fast compared with the same task performed on a hand calculator. The fastest mechanical relay computers being operated experimentally at Harvard, Bell Laboratories, and elsewhere could do no more than 15 to 50 additions per second, a full two orders of magnitude slower. By showing that electronic computing circuitry could actually work, ENIAC paved the way for the modern computing industry that stands as its great legacy. ENIAC was by no means the first computer. In 1839, an Englishman Charles Babbage designed and developed the first true mechanical digital computer, which he described as a "difference engine," for solving mathematical problems including simple differential equations. He was assisted in his work by a woman mathematician, Ada Countess Lovelace, a member of the aristocracy and the daughter of Lord Byron. They worked out the mathematics of mechanical computation, which, in turn, led Babbage to design the more ambitious analytical engine.