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Christopher Strachey
Christopher S. Strachey (; 16 November 1916 – 18 May 1975) was a British computer scientist. He was one of the founders of denotational semantics, and a pioneer in programming language design and computer time-sharing.F. J. Corbató, et al., The Compatible Time-Sharing System A Programmer's Guide' (MIT Press, 1963) . "the first paper on time-shared computers by C. Strachey at the June 1959 UNESCO Information Processing conference" He has also been credited as possibly being the first developer of a video game and for coining terms such as polymorphism and referential transparency that are still widely used by developers today. He was a member of the Strachey family, prominent in government, arts, administration, and academia. Early life and education Christopher Strachey was born on 16 November 1916 to Oliver Strachey and Rachel (Ray) Costelloe in Hampstead, England. Oliver Strachey was the son of Richard Strachey and the great-grandson of Sir Henry Strachey, 1st Baronet. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bodleian Library
The Bodleian Library () is the main research library of the University of Oxford. Founded in 1602 by Sir Thomas Bodley, it is one of the oldest libraries in Europe. With over 13 million printed items, it is the second-largest library in Britain after the British Library. Under the Legal Deposit Libraries Act 2003, it is one of six legal deposit libraries for works published in the United Kingdom, and under Irish law it is entitled to request a copy of each book published in the Republic of Ireland. Known to Oxford scholars as "Bodley" or "the Bod", it operates principally as a reference library and, in general, documents may not be removed from the reading rooms. In 2000, a number of libraries within the University of Oxford were brought together for administrative purposes under the aegis of what was initially known as Oxford University Library Services (OULS), and since 2010 as the Bodleian Libraries, of which the Bodleian Library is the largest component. All coll ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computer Scientist
A computer scientist is a scientist who specializes in the academic study of computer science. Computer scientists typically work on the theoretical side of computation. Although computer scientists can also focus their work and research on specific areas (such as algorithm and data structure development and design, software engineering, information theory, database theory, theoretical computer science, numerical analysis, programming language theory, compiler, computer graphics, computer vision, robotics, computer architecture, operating system), their foundation is the theoretical study of computing from which these other fields derive. A primary goal of computer scientists is to develop or validate models, often mathematical, to describe the properties of computational systems (Processor (computing), processors, programs, computers interacting with people, computers interacting with other computers, etc.) with an overall objective of discovering designs that yield useful ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barbara Strachey
Barbara Halpern Strachey (17 July 1912 – 15 October 1999 in Oxford, England) was a British author. Barbara Strachey was born to parents Oliver Strachey, a cryptographer in World War I and World War II, and the feminist politician, writer, and amateur painter Ray Strachey. She attended schools in Switzerland, Vienna, and Oxford High School. She studied history at Lady Margaret Hall, Oxford University. Later she worked for the BBC for a period, and was involved in the transformation of the General Overseas Service into the World Service in 1965. In 1934, Barbara Strachey married Olaf Hultin, the son of Professor Arvid Hultin of Helsinki, but they divorced in 1937. They had one son, Roger. She married for a second time in 1937, to Wolf Halpern, the son of Dr George Halpern of Jerusalem, who was killed in WWII. After the death of her brother, the computer scientist Christopher Strachey, she moved to a small house in Jericho, Oxford in 1975. She took up writing and was interest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sir Henry Strachey, 1st Baronet
Sir Henry Strachey, 1st Baronet (23 May 1736 – 3 January 1810) was a British civil servant and politician who sat in the House of Commons for 39 years from 1768 to 1807. Life Strachey was the eldest son of Henry Strachey, of Sutton Court, Somerset, and his first wife Helen, daughter of Robert Clerk, a Scottish physician. His grandfather was the geologist John Strachey (geologist), John Strachey and his great-grandfather John Strachey was a friend of John Locke. He was appointed private secretary to Robert Clive, 1st Baron Clive, Lord Clive in India in 1762, a position he held until 1768, when he was returned to Parliament for Pontefract (UK Parliament constituency), Pontefract. He sat for this constituency until 1774, and later represented Bishop's Castle (UK Parliament constituency), Bishop's Castle from 1774 to 1778 and from 1780 to 1802, Saltash (UK Parliament constituency), Saltash from 1774 to 1780 and East Grinstead (UK Parliament constituency), East Grinstead from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richard Strachey
Sir Richard Strachey (24 July 1817 – 12 February 1908) was a British soldier and Indian administrator, the third son of Edward Strachey and grandson of Sir Henry Strachey, 1st Baronet. Early life He was born on 24 July 1817, at Sutton Court, Stowey, Somerset. From Addiscombe Military Seminary he passed into the Bengal Engineers in 1836, and was employed for some years on irrigation works in the North-Western Provinces. So many members of the family were in the Indian government that sarcastic mentions were made of the "Government of the Stracheys".Holdich, T. H. (1908) Obituary: General Sir Richard Strachey, GCSI, FRS, LLD. The Geographical Journal, Vol. 31, No. 3 (Mar. 1908), pp. 342–344. Career Strachey served in the First Anglo-Sikh War of 1845–46, and was at the battles of Aliwal and Sobraon, was mentioned in dispatches, and received a brevet-majority. In 1848, with J. E. Winterbottom, he entered Tibet to explore Lakes Manasarovar and Rakshastal, which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strachey
The Strachey family originated in Saffron Walden, Essex, England. By the mid-1600s, they were based at Sutton Court in Stowey, Somerset, England. Strachey family * William Strachey the English writer ** William Strachey (c. 1596/97–1635) ***John Strachey (d. 1674), friend of John Locke **** John Strachey (geologist) (1671–1743), British geologist *****Thomas Strachey (1699–1740) served in the British Royal Navy. ******Susannah Strachey married Edmund Harper. *******Tristram Harper (1760–1842) ********Harriette Strachey Harper (1802–1889) married John Shephard (1791–1878) ********* Sir Horatio Hale Shephard (1842–1921), British lawyer ********** Brigadier-General Gordon Strachey Shephard (1885–1918), Royal Flying Corps commander ******** Rev. Henry John Chitty Harper (1804–1893), Anglican bishop ********* Emily Weddell Harper (1830–1950) married John Barton Arundel Acland (1823-1904). ********** Sir Hugh Thomas Dyke Acland (1874–1956), New Zealand surgeon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Referential Transparency
In analytic philosophy and computer science, referential transparency and referential opacity are properties of linguistic constructions, and by extension of languages. A linguistic construction is called ''referentially transparent'' when for any expression built from it, Rewriting, replacing a subexpression with another one that Denotation, denotes the same value does not change the value of the expression. Also: Otherwise, it is called ''referentially opaque''. Each expression built from a referentially opaque linguistic construction states something about a subexpression, whereas each expression built from a referentially transparent linguistic construction states something not about a subexpression, meaning that the subexpressions are ‘transparent’ to the expression, acting merely as ‘references’ to something else. For example, the linguistic construction ‘_ was wise’ is referentially transparent (e.g., ''Socrates was wise'' is equivalent to ''The founder of Weste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polymorphism (computer Science)
In programming language theory and type theory, polymorphism is the use of one symbol to represent multiple different types.: "Polymorphic types are types whose operations are applicable to values of more than one type." In object-oriented programming, polymorphism is the provision of one Interface (object-oriented programming), interface to entities of different data types. The concept is borrowed from a principle in biology where an organism or species can have many different forms or stages. The most commonly recognized major forms of polymorphism are: * ''Ad hoc polymorphism'': defines a common interface for an arbitrary set of individually specified types. * ''Parametric polymorphism'': not specifying concrete types and instead use abstract symbols that can substitute for any type. * ''Subtyping'' (also called ''subtype polymorphism'' or ''inclusion polymorphism''): when a name denotes instances of many different classes related by some common superclass. History Interest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
YouTube
YouTube is an American social media and online video sharing platform owned by Google. YouTube was founded on February 14, 2005, by Steve Chen, Chad Hurley, and Jawed Karim who were three former employees of PayPal. Headquartered in San Bruno, California, it is the second-most-visited website in the world, after Google Search. In January 2024, YouTube had more than 2.7billion monthly active users, who collectively watched more than one billion hours of videos every day. , videos were being uploaded to the platform at a rate of more than 500 hours of content per minute, and , there were approximately 14.8billion videos in total. On November 13, 2006, YouTube was purchased by Google for $1.65 billion (equivalent to $ billion in ). Google expanded YouTube's business model of generating revenue from advertisements alone, to offering paid content such as movies and exclusive content produced by and for YouTube. It also offers YouTube Premium, a paid subs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Video Game
A video game or computer game is an electronic game that involves interaction with a user interface or input device (such as a joystick, game controller, controller, computer keyboard, keyboard, or motion sensing device) to generate visual feedback from a display device, most commonly shown in a video format on a television set, computer monitor, flat-panel display or touchscreen on handheld devices, or a virtual reality headset. Most modern video games are audiovisual, with Sound, audio complement delivered through loudspeaker, speakers or headphones, and sometimes also with other types of sensory feedback (e.g., haptic technology that provides Touch, tactile sensations). Some video games also allow microphone and webcam inputs for voice chat in online gaming, in-game chatting and video game livestreaming, livestreaming. Video games are typically categorized according to their hardware platform, which traditionally includes arcade video games, console games, and PC game, comp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Programming Language
A programming language is a system of notation for writing computer programs. Programming languages are described in terms of their Syntax (programming languages), syntax (form) and semantics (computer science), semantics (meaning), usually defined by a formal language. Languages usually provide features such as a type system, Variable (computer science), variables, and mechanisms for Exception handling (programming), error handling. An Programming language implementation, implementation of a programming language is required in order to Execution (computing), execute programs, namely an Interpreter (computing), interpreter or a compiler. An interpreter directly executes the source code, while a compiler produces an executable program. Computer architecture has strongly influenced the design of programming languages, with the most common type (imperative languages—which implement operations in a specified order) developed to perform well on the popular von Neumann architecture. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Higher-Order And Symbolic Computation
''Higher-Order and Symbolic Computation'' (formerly ''LISP and Symbolic Computation'') was a computer science journal published by Springer Science+Business Media. It focuses on programming concepts and abstractions and programming language theory. The final issue appeared in 2013. Editors Former editors-in-chief of the journal have been: * Richard P. Gabriel, Sun Microsystems, Inc., USA (1988 – 1991) * Guy L. Steele Jr., Sun Microsystems, Inc., USA (1988 – 1991) * Robert R. Kessler, University of Utah, USA (1991 – 1998) The last editors-in-chief were Olivier Danvy (Aarhus University) and Carolyn Talcott (SRI International). Abstracting and indexing The journal is abstracted and indexed in Academic OneFile, ACM Computing Reviews, ACM Digital Library, Computer Abstracts International Database, Computer Science Index, Current Abstracts, EBSCO, EI-Compendex, INSPEC, io-port.net, PASCAL, Scopus, Summon by Serial Solutions, VINITI Database RAS, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
