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LEO (computer)

Index LEO (computer)

The LEO I (Lyons Electronic Office I) was the first computer used for commercial business applications. [1]

54 relations: Acronym, Assembly language, BT Group, Call centre, Charles Babbage Institute, COBOL, Computer, Computer multitasking, Dalkeith, Data buffer, David Caminer, Delay line memory, Douglas Hartree, Electronic delay storage automatic calculator, Elizabeth II, English Electric, ENIAC, Ferranti Mercury, Frank Land, Fujitsu, General Post Office, Guildhall, London, Herman Goldstine, Hertz, ICL 2900 Series, IEEE Annals of the History of Computing, IEEE Computer Society, International Computers and Tabulators, International Computers Limited, Inventory, J. Lyons and Co., John Pinkerton (computer designer), Kilobyte, List of vacuum tube computers, Magnetic-core memory, Maurice Wilkes, McGraw-Hill Education, Mercury (element), Met Office, Microcode, Millisecond, Nick Pelling, Outsourcing, Oxford University Press, Payroll, Peter Bird (IT manager), Punched card input/output, Punched tape, Robert L. Glass, Royal Highness, ..., The Computer Journal, University of Cambridge, University of Manchester Library, World War II. Expand index (4 more) »

Acronym

An acronym is a word or name formed as an abbreviation from the initial components in a phrase or a word, usually individual letters (as in NATO or laser) and sometimes syllables (as in Benelux).

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Assembly language

An assembly (or assembler) language, often abbreviated asm, is a low-level programming language, in which there is a very strong (but often not one-to-one) correspondence between the assembly program statements and the architecture's machine code instructions.

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BT Group

BT Group plc (trading as BT and formerly British Telecom) is a British multinational telecommunications holding company with head offices in London, United Kingdom.

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Call centre

A call centre or call center is a centralised office used for receiving or transmitting a large volume of requests by telephone.

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Charles Babbage Institute

The Charles Babbage Institute is a research center at the University of Minnesota specializing in the history of information technology, particularly the history of digital computing, programming/software, and computer networking since 1935.

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COBOL

COBOL (an acronym for "common business-oriented language") is a compiled English-like computer programming language designed for business use.

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Computer

A computer is a device that can be instructed to carry out sequences of arithmetic or logical operations automatically via computer programming.

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Computer multitasking

In computing, multitasking is the concurrent execution of multiple tasks (also known as processes) over a certain period of time.

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Dalkeith

Dalkeith (Dail Cheith) is a town in Midlothian, Scotland, on the River Esk.

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Data buffer

In computer science, a data buffer (or just buffer) is a region of a physical memory storage used to temporarily store data while it is being moved from one place to another.

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David Caminer

David Caminer, OBE (26 June 1915 – 19 June 2008) has been called "the world's first corporate electronic systems analyst" and "the world's first software engineer".

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Delay line memory

Delay line memory is a form of computer memory, now obsolete, that was used on some of the earliest digital computers.

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Douglas Hartree

Douglas Rayner Hartree PhD, FRS (27 March 1897 – 12 February 1958) was an English mathematician and physicist most famous for the development of numerical analysis and its application to the Hartree–Fock equations of atomic physics and the construction of a differential analyser using Meccano.

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Electronic delay storage automatic calculator

The electronic delay storage automatic calculator (EDSAC) was an early British computer.

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Elizabeth II

Elizabeth II (Elizabeth Alexandra Mary; born 21 April 1926) is Queen of the United Kingdom and the other Commonwealth realms.

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English Electric

The English Electric Company Limited was a British industrial manufacturer formed after the armistice of World War I at the end of 1918.

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ENIAC

ENIAC (Electronic Numerical Integrator and Computer) was amongst the earliest electronic general-purpose computers made.

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Ferranti Mercury

The Mercury was an early commercial computer from the mid-1950s built by Ferranti.

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Frank Land

Frank Land (born 1928) is an information systems researcher and was the first United Kingdom Professor of Information Systems.

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Fujitsu

is a Japanese multinational information technology equipment and services company headquartered in Tokyo, Japan.

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General Post Office

The General Post Office (GPO) was officially established in England in 1660 by Charles II and it eventually grew to combine the functions of state postal system and telecommunications carrier.

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Guildhall, London

Guildhall is a Grade I-listed building in the City of London, England.

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Herman Goldstine

Herman Heine Goldstine (September 13, 1913 – June 16, 2004) was a mathematician and computer scientist, who was one of the original developers of ENIAC, the first of the modern electronic digital computers.

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Hertz

The hertz (symbol: Hz) is the derived unit of frequency in the International System of Units (SI) and is defined as one cycle per second.

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ICL 2900 Series

The ICL 2900 Series was a range of mainframe computer systems announced by the UK manufacturer ICL on 9 October 1974.

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IEEE Annals of the History of Computing

The IEEE Annals of the History of Computing is a quarterly peer-reviewed academic journal published by the IEEE Computer Society.

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IEEE Computer Society

IEEE Computer Society (sometimes abbreviated Computer Society or CS) is a professional society of IEEE.

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International Computers and Tabulators

International Computers and Tabulators or ICT was formed in 1959 by a merger of the British Tabulating Machine Company (BTM) and Powers-Samas.

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International Computers Limited

International Computers Limited (ICL) was a large British computer hardware, computer software and computer services company that operated from 1968 until 2002.

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Inventory

Inventory (American English) or stock (British English) is the goods and materials that a business holds for the ultimate goal of resale (or repair).

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J. Lyons and Co.

J.

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John Pinkerton (computer designer)

John Maurice McClean Pinkerton (2 August 1919 – 22 December 1997) was a pioneering British computer designer.

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Kilobyte

The kilobyte is a multiple of the unit byte for digital information.

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List of vacuum tube computers

Vacuum tube computers, now termed first generation computers, are programmable digital computers using vacuum tube logic circuitry.

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Magnetic-core memory

Magnetic-core memory was the predominant form of random-access computer memory for 20 years between about 1955 and 1975.

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Maurice Wilkes

Sir Maurice Vincent Wilkes (26 June 1913 – 29 November 2010) was a British computer scientist who designed and helped build the electronic delay storage automatic calculator (EDSAC), one of the earliest stored program computers and invented microprogramming, a method for using stored-program logic to operate the control unit of a central processing unit's circuits.

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McGraw-Hill Education

McGraw-Hill Education (MHE) is a learning science company and one of the "big three" educational publishers that provides customized educational content, software, and services for pre-K through postgraduate education.

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Mercury (element)

Mercury is a chemical element with symbol Hg and atomic number 80.

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Met Office

The Met Office (officially the Meteorological Office) is the United Kingdom's national weather service.

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Microcode

Microcode is a computer hardware technique that imposes an interpreter between the CPU hardware and the programmer-visible instruction set architecture of the computer.

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Millisecond

A millisecond (from milli- and second; symbol: ms) is a thousandth (0.001 or 10−3 or 1/1000) of a second.

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Nick Pelling

Nick Pelling is a British-born computer programmer and investigative writer best known as the creator of the 1984 game Frak!.

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Outsourcing

In business, outsourcing is an agreement in which one company contracts its own internal activity to a different company.

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Oxford University Press

Oxford University Press (OUP) is the largest university press in the world, and the second oldest after Cambridge University Press.

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Payroll

A payroll is a company's list of its employees, but the term is commonly used to refer to.

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Peter Bird (IT manager)

Peter John Bird (1934-2017) was a British computer operator in the early days of commercial computing, and rose to be a director of Lyons Computer Services.

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Punched card input/output

A computer punched card reader or just computer card reader is a computer input device used to read computer programs in either source or executable form and data from punched cards.

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Punched tape

Punched tape or perforated paper tape is a form of data storage, consisting of a long strip of paper in which holes are punched to store data.

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Robert L. Glass

Robert L. (Bob) Glass (born 1932) is an American software engineer and writer, known for his works on software engineering, especially on the measuring of the quality of software design and his studies of the state of the art of software engineering research.

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Royal Highness

Royal Highness (abbreviated HRH for His Royal Highness or Her Royal Highness) is a style used to address or refer to some members of royal families, usually princes or princesses.

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The Computer Journal

The Computer Journal is a peer-reviewed scientific journal covering computer science and information systems.

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University of Cambridge

The University of Cambridge (informally Cambridge University)The corporate title of the university is The Chancellor, Masters, and Scholars of the University of Cambridge.

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University of Manchester Library

The University of Manchester Library is The University of Manchester's library and information service.

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World War II

World War II (often abbreviated to WWII or WW2), also known as the Second World War, was a global war that lasted from 1939 to 1945, although conflicts reflecting the ideological clash between what would become the Allied and Axis blocs began earlier.

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Redirects here:

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References

[1] https://en.wikipedia.org/wiki/LEO_(computer)

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