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Technical Details of the Elliott 152 and 153
Appendix 1 Technical Details of the Elliott 152 and 153 Introduction The Elliott 152 computer was part of the Admiralty’s MRS5 (medium range system 5) naval gunnery project, described in Chap. 2. The Elliott 153 computer, also known as the D/F (direction-finding) computer, was built for GCHQ and the Admiralty as described in Chap. 3. The information in this appendix is intended to supplement the overall descriptions of the machines as given in Chaps. 2 and 3. A1.1 The Elliott 152 Work on the MRS5 contract at Borehamwood began in October 1946 and was essen- tially finished in 1950. Novel target-tracking radar was at the heart of the project, the radar being synchronized to the computer’s clock. In his enthusiasm for perfecting the radar technology, John Coales seems to have spent little time on what we would now call an overall systems design. When Harry Carpenter joined the staff of the Computing Division at Borehamwood on 1 January 1949, he recalls that nobody had yet defined the way in which the control program, running on the 152 computer, would interface with guns and radar. Furthermore, nobody yet appeared to be working on the computational algorithms necessary for three-dimensional trajectory predic- tion. As for the guns that the MRS5 system was intended to control, not even the basic ballistics parameters seemed to be known with any accuracy at Borehamwood [1, 2]. A1.1.1 Communication and Data-Rate The physical separation, between radar in the Borehamwood car park and digital computer in the laboratory, necessitated an interconnecting cable of about 150 m in length. -
Chapter 1 Computer Basics
Chapter 1 Computer Basics 1.1 History of the Computer A computer is a complex piece of machinery made up of many parts, each of which can be considered a separate invention. abacus Ⅰ. Prehistory /ˈæbəkəs/ n. 算盘 The abacus, which is a simple counting aid, might have been invented in Babylonia(now Iraq) in the fourth century BC. It should be the ancestor of the modern digital calculator. Figure 1.1 Abacus Wilhelm Schickard built the first mechanical calculator in 1623. It can loom work with six digits and carry digits across columns. It works, but never /lu:m/ makes it beyond the prototype stage. n. 织布机 Blaise Pascal built a mechanical calculator, with the capacity for eight digits. However, it had trouble carrying and its gears tend to jam. punch cards Joseph-Marie Jacquard invents an automatic loom controlled by punch 穿孔卡片 cards. Difference Engine Charles Babbage conceived of a Difference Engine in 1820. It was a 差分机 massive steam-powered mechanical calculator designed to print astronomical tables. He attempted to build it over the course of the next 20 years, only to have the project cancelled by the British government in 1842. 1 新编计算机专业英语 Analytical Engine Babbage’s next idea was the Analytical Engine-a mechanical computer which 解析机(早期的机 could solve any mathematical problem. It used punch-cards similar to those used 械通用计算机) by the Jacquard loom and could perform simple conditional operations. countess Augusta Ada Byron, the countess of Lovelace, met Babbage in 1833. She /ˈkaʊntɪs/ described the Analytical Engine as weaving “algebraic patterns just as the n. -
TX-0 Computer After 10,000 Hours of Operation", L
tX If ,@8s~~~I 17A .:~- I-:· aTg Dc''n'_ !-41 2 . LK - ! v M IT6u i ~~6:illn -jW-~ 4 1 2 The RESEARCH LABORATORY of ELECTRONICS at the MASSACHUSETTS INSTITUTE OF TECHNOLOGY CAMBRIDGE, MASSACHUSETTS 02139 TX-O Computer History John A. McKenzie RLE Technical Report No. 627 June 1999 MASSACHUSETTS INSTITUTE OF TECHNOLOGY RESEARCH LABORATORY OF ELECTRONICS CAMBRIDGE, MASSACHUSETTS 02139 TX-O COMPUTER HISTORY John A. McKenzie October 1, 1974 TX-O COMPUTER HISTORY OUTLINE ABSTRA CT PART I (at LINCOLN ABORATORY) INTRODUCTION 1 DESCRIPTION 2 LOGIC 4 CIRCUITRY 5 MARGINAL CHECKING 6 TRANSISTORS MEMORY (S Memory) SOFTWARE (Initial) 9 TX-2 10 TRANSISTORIZED MEMORY (T Memory) 11 POWER CONTROL 12 IN-OUT RACK 13 CONSOLE 13 PART II (at CAMBRIDGE) INTRODUCTION 14 MOVE to CAMBRIDGE 15 EXTENDED INPUT/OUTPUT FACILITY, Addition of 16 FIRST YEAR at CAMBRIDGE 18 MODE of OPERATION 19 MACHINE EXPANSION PHASE 20 T-MEMORY EXPANSION 21 ORDER CODE ENLARGEMENT 22 DIGITAL MAGNETIC TAPE SYSTEM 24 SOFTWARE DEVELOPMENT 25 APPLICATIONS 29 TIMESHARING (PDP-1) 34 CONCLUSION 34 A CKNOWLEDGEMENT 35 BIBLIOGRAPHY TX-O COMPUTER HISTORY A BSTRA CT The TX-O Computer (meaning the Zeroth Transistorized Computer) was designed and constructed, in 1956, by the Lincoln Laboratory of the Massachusetts Institute of Tech- nology, with two purposes in mind. One objective was to test and evaluate the use of transistors as the logical elements of a high-speed, 5 MHz, general-purpose, stored-program, parallel, digital computer. The second purpose was to provide means for testing a large capacity (65,536 word) magnetic-core memory. -
Symmetrical Transistor Logic A
switching circuits by a substantially- age requirements. The total cost using 2. HIGH SPEED TRANSISTOR COMPUTER CIR CUITS, S. Y. Wong;, A. K. Rapp. IRE-AIEE smaller number of components and con DCTL is comparable with other tech Transistor Circuits Conference, Phila., Pa., Feb. nections, and by extremely-low power niques, because the tightly specified 1956. (Not published.) consumption. Circuit simplicity and low 3. HIGH-TEMPERATURE SILICON-TRANSISTOR COM transistor eliminates considerable com PUTER CIRCUITS, James B. Angell. Proceed dissipation are obtained at the price of plexity in system design and manufac ings of the Eastern • Joint Computer Conference, AIEE Special Publication T-92, Dec. 10-12, 1956, limited gain, small voltage swings, and a ture. pp. 54-57. comparatively low upper limit on in 4. LARGE-SIGNAL BEHAVIOR OP JUNCTION TRAN ternal temperature. Rather severe re SISTORS, J. J. Ebeijs, J. L. Moll. Proceedings, References Institute of Radio Engineers, New York, N. Y., quirements on transistor parameters, vol. 42, Dec. 1954, ij>p. 1761-72. 1. SURFACE-BARRIER TRANSISTOR SWITCHING CIR particularly input impedance and satura CUITS, R. H. Beter, W. E. Bradley, R. B. Brown, 5. TWO-COLLECTOR TRANSISTOR FOR BINARY tion voltage, are compensated by almost M. Rubinoff. Convention Record, Institute of FULL ADDER, R. F. Rtitz. IBM Journal of Research Radio Engineers, New York, N. Y., pt. IV, 1955, and Development, N^w York, N. Y., vol. 1, July negligible dissipation and maximum volt p. 139. 1957, pp. 212-22. I. Basic System Requirements Symmetrical Transistor Logic A. INITIAL The initial specific system for which the R. -
Timeline of Computer History
Timeline of Computer History By Year By Category Search AI & Robotics (55) Computers (145)(145) Graphics & Games (48) Memory & Storage (61) Networking & The Popular Culture (50) Software & Languages (60) Bell Laboratories scientist 1937 George Stibitz uses relays for a Hewlett-Packard is founded demonstration adder 1939 Hewlett and Packard in their garage workshop “Model K” Adder David Packard and Bill Hewlett found their company in a Alto, California garage. Their first product, the HP 200A A Called the “Model K” Adder because he built it on his Oscillator, rapidly became a popular piece of test equipm “Kitchen” table, this simple demonstration circuit provides for engineers. Walt Disney Pictures ordered eight of the 2 proof of concept for applying Boolean logic to the design of model to test recording equipment and speaker systems computers, resulting in construction of the relay-based Model the 12 specially equipped theatres that showed the movie I Complex Calculator in 1939. That same year in Germany, “Fantasia” in 1940. engineer Konrad Zuse built his Z2 computer, also using telephone company relays. The Complex Number Calculat 1940 Konrad Zuse finishes the Z3 (CNC) is completed Computer 1941 The Zuse Z3 Computer The Z3, an early computer built by German engineer Konrad Zuse working in complete isolation from developments elsewhere, uses 2,300 relays, performs floating point binary arithmetic, and has a 22-bit word length. The Z3 was used for aerodynamic calculations but was destroyed in a bombing raid on Berlin in late 1943. Zuse later supervised a reconstruction of the Z3 in the 1960s, which is currently on Operator at Complex Number Calculator (CNC) display at the Deutsches Museum in Munich. -
Talking About the Development Trend of Modern Computer Technology
2019 3rd International Conference on Computer Engineering, Information Science and Internet Technology (CII 2019) Talking about the Development Trend of Modern Computer Technology Yongpan Wang North China Electric Power University, Baoding 071000, China [email protected] Keywords: modern computer technology; development status; development trend. Abstract: Along with the development of the times and the advancement of society, the popularity of computer technology has not only changed the way people communicate, but also brought more help to economic development. Computer technology promotes the development of China's social economy and information security industry, but security risk management is still an urgent problem in the development of modern computer technology. The analysis from the development history of the computer can explore its technological development direction, and can also predict its development trend and contribute to the overall development of society. Therefore, this paper mainly discusses the development history of computer technology, analyzes its development status, and explores its development direction based on the above research. 1. Introduction The so-called computer is a modern intelligent electronic device that can be used for high-speed data and logic computing and with storage and modification functions. Computer belongs to a common item in our work life. It mainly has two parts of the main structure, some of which can be called hardware system, which is composed of hardware, which maintains the operation of the computer, and the other part is the software system to realize the function of the computer. The two together guarantee the normal operation of the computer. With the continuous advancement of science and technology, modern computer technology is also developing. -
Sperry Rand's Third-Generation Computers 1964–1980
Sperry Rand’s Third-Generation Computers 1964–1980 George T. Gray and Ronald Q. Smith The change from transistors to integrated circuits in the mid-1960s marked the beginning of third-generation computers. A late entrant (1962) in the general-purpose, transistor computer market, Sperry Rand Corporation moved quickly to produce computers using ICs. The Univac 1108’s success (1965) reversed the company’s declining fortunes in the large-scale arena, while the 9000 series upheld its market share in smaller computers. Sperry Rand failed to develop a successful minicomputer and, faced with IBM’s dominant market position by the end of the 1970s, struggled to maintain its position in the computer industry. A latecomer to the general-purpose, transistor would be suitable for all types of processing. computer market, Sperry Rand first shipped its With its top management having accepted the large-scale Univac 1107 and Univac III comput- recommendation, IBM began work on the ers to customers in the second half of 1962, System/360, so named because of the intention more than two years later than such key com- to cover the full range of computing tasks. petitors as IBM and Control Data. While this The IBM 360 did not rely exclusively on lateness enabled Sperry Rand to produce rela- integrated circuitry but instead employed a tively sophisticated products in the 1107 and combination of separate transistors and chips, III, it also meant that they did not attain signif- called Solid Logic Technology (SLT). IBM made icant market shares. Fortunately, Sperry’s mili- a big event of the System/360 announcement tary computers and the smaller Univac 1004, on 7 April 1964, holding press conferences in 1005, and 1050 computers developed early in 62 US cities and 14 foreign countries. -
1. Types of Computers Contents
1. Types of Computers Contents 1 Classes of computers 1 1.1 Classes by size ............................................. 1 1.1.1 Microcomputers (personal computers) ............................ 1 1.1.2 Minicomputers (midrange computers) ............................ 1 1.1.3 Mainframe computers ..................................... 1 1.1.4 Supercomputers ........................................ 1 1.2 Classes by function .......................................... 2 1.2.1 Servers ............................................ 2 1.2.2 Workstations ......................................... 2 1.2.3 Information appliances .................................... 2 1.2.4 Embedded computers ..................................... 2 1.3 See also ................................................ 2 1.4 References .............................................. 2 1.5 External links ............................................. 2 2 List of computer size categories 3 2.1 Supercomputers ............................................ 3 2.2 Mainframe computers ........................................ 3 2.3 Minicomputers ............................................ 3 2.4 Microcomputers ........................................... 3 2.5 Mobile computers ........................................... 3 2.6 Others ................................................. 4 2.7 Distinctive marks ........................................... 4 2.8 Categories ............................................... 4 2.9 See also ................................................ 4 2.10 References -
Alan Milstein's History of Computers
Alan Milstein's History of Computers CYBERCHRONOLOGY INTRODUCTION This chronology reflects the vision that the history of computers is the history of humankind. Computing is not just calculating; it is thinking, learning, and communicating. This Cyberchronolgy is a history of two competing paths, the outcome of which may ultimately determine our fate. Computers either are simply machines to be controlled by the powerful, by governments and industrial giants, and by the Masters of War, or they are the tools that will allow every human being to achieve his or her potential and to unite for a common purpose. Day One Earliest humans use pebbles to calculate, a word derived from the Latin for “pebble” 17th century B.C. Wolf’s jawbone carved with 55 notches in groups of five, first evidence of tally system 8500 B.C. Bone carved with notches in groups of prime numbers 5th century B.C. Abacus invented, a digital computing device 415 B.C. Theaetetus creates solid geometry 293 B.C. Euclid writes the “Elements” 725 A Chinese engineer and Buddhist monk build first mechanical clock 1617 John Napier invents Napier’s Bones, multiplication tables on strips of wood or bones 1621 William Oughtred invents slide rule, an analog computing device 1623 Wilhelm Schickard of Germany invents calculating clock, a 6 digit machine, can add and subtract 1645 Blaise Pascal invents Pascaline, a 5 digit adding machine 1668 Samuel Morland of England invents nondecimal adding machine 1694 Gottfried Leibniz, who discovered both calculus and the binary system, develops the Leibniz Computer, a nonprogrammable multiplying machine 1714 Henry Mill patents the typewriter in England 1786 Mueller conceives Difference Engine, special purpose calculator for tabulating values of polynomial 1821 Michael Faraday, the Father of Electricity, builds first two electric motors 1832 Charles Babbage designs first Difference Engine 1835 Joseph Henry invents electrical relay 5/24/1844 Samuel B. -
Download PDF File
Copyright©2017 Tokyo Electron Limited, All Right Reserved. Core Semiconductor Technologies Applied technologies 1876 Telephone invented by Graham Bell 1876 1897 Cathode ray tube invented by Karl Ferdinand Braun 1897 1900 Telegraph, telephone, 1900 Two-electrode vacuum tube invented by John Fleming wireless communication Three-electrode vacuum tube invented by Lee De Forest Wireless communication Vacuum tube Television receiver with a cathode ray tube devised technology technology by Russian scientist Boris Rosing 1910 1910 Semiconductor prehistory: Radio broadcasting 1920 Development of electronic circuit 1920 and control technology First radio station starts broadcasting TV broadcasting Radio broadcasting starts in the UK World’s first successful reception of images using a cathode ray tube Radio broadcasting starts in Japan Successful TV transmission experiment between New York and Washington DC Experimental TV broadcasting starts 1930 1930 Demand for durable solid state devices Computer Worlds’ first regular TV broadcasting starts Atanasoff‒Berry computer (ABC) invented in the UK (BBC) Bell Labs Model 1 relay computer introduced 1940 1940 Photovoltaic effect in silicon discovered by Russell Ohl (at Bell Labs) Codebreaking computer Colossus introduced P- and n-type conduction discovered by Jack Scaff Technique to manufacture p- and n-type semiconductors by World’s first general-purpose computer ENIAC completed doping impurities discovered by Henry Theuerer and Jack Scaff Point-contact transistor discovered by Walter Brattain and John Bardeen -
Inhoudsopgave
Inhoudsopgave INLEIDING 1 1. DE GESCHIEDENIS VAN INFORMATIE- EN COMMUNICATIETECHNOLOGIE 5 1.1 De geschiedenis van de computer 5 1.2 De geschiedenis van het internet 23 2. DE BASISBEGINSELEN VAN INFORMATIE- EN COMMUNICATIETECHNOLOGIE 33 2.1 De computersoorten 33 2.1.1 De supercomputers 34 2.1.2 De mainframecomputers 36 2.1.3 De minicomputers 36 2.1.4 De microcomputers 36 2.2 De hardware componenten 37 2.2.1 De centrale verwerkingseenheid 37 2.2.2 De moederborden 39 2.2.3 De onderdelen op een moederbord 41 2.3 De software componenten 45 2.4 De netwerksystemen 51 2.4.1 De netwerktopologie 52 2.4.2 De netwerktypen 54 2.4.3 De netwerkmodellen 55 2.4.4 De netwerkcategorieën 57 2.5 Het internet 59 2.6 Het concept ‘internet of things’ 70 3. DE VEILIGHEID: COMPUTER- EN CYBERSECURITY 77 3.1 Het informatie(beveiligings-)management 80 3.1.1 De informatieladder 81 3.2 De organisatorische maatregelen 84 3.2.1 Het informatiebeveiligingsbeheersysteem 84 3.2.2 De procesbenadering 90 3.3 De technische maatregelen 100 3.3.1 De begripsbepaling 100 3.3.2 De informatiebeveiligingsconcepten en -maatregelen 104 VI Inhoudsopgave 4. HET EUROPEES MENSENRECHTENVERDRAG 123 4.1 Het recht op privacy 124 4.2 De rol van de eiser 125 4.3 De rol van de rechter 127 4.4 De privélevenssfeer: privéleven 130 4.5 Het privéleven: fotografie 132 4.6 Het privéleven: reputatie 135 4.7 Het privéleven: persoonlijke data 137 4.8 De bijzondere persoonsgegevens 155 4.9 De privélevenssfeer: familie- en gezinsleven 157 4.10 De privélevenssfeer: woning 159 4.11 De privélevenssfeer: correspondentie 160 5. -
When Was the First Computer Invented?
When was the first computer invented? There is no easy answer to this question because of all the different classifications of computers. The first mechanical computer created by Charles Babbage doesn't really resemble what most would consider a computer today. Therefore, this document has been created with a listing of each of the computer firsts starting with the Difference Engine and leading up to the types of computers we use today. Keep in mind that early inventions that helped lead up to the computer such as the abacus, calculator, and tablet machines are not accounted for in this document. The word "computer" was first used The word "computer" was first recorded as being used in 1613 and was originally was used to describe a human who performed calculations or computations. The definition of a computer remained the same until the end of the 19th century when people began to realize machines never get tired and can perform calculations much faster and more accurately than any team of human computers ever could. First mechanical computer or automatic computing engine concept In 1822, Charles Babbage conceptualized and began developing the Difference Engine, considered to be the first automatic computing engine that was capable of computing several sets of numbers and making hard copies of the results. Unfortunately, because of funding he was never able to complete a full-scale functional version of this machine. In June of 1991, the London Science Museum completed the Difference Engine No 2 for the bicentennial year of Babbage's birth and later completed the printing mechanism in 2000.