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Eventually, the concept of numbers became concrete and familiar enough for counting to arise, at times with sing-song mnemonics to teach sequences to others. All known human languages, except the Piraha language, have words for at least the numerals "one" and "two", and even some animals like the blackbird can distinguish a surprising number of items.
The Computer History in time and space, Graphing Project, an attempt to build a graphical image of computer history, in particular operating systems. The Computer Revolution/Timeline at Wikibooks "File:Timeline.pdf - Engineering and Technology History Wiki" (PDF). ethw.org. 2012. Archived (PDF) from the original on 2017-10-31
The timeline of historic inventions is a chronological list of particularly significant technological inventions and their inventors, where known. [ a ] The dates in this article make frequent use of the units mya and kya , which refer to millions and thousands of years ago, respectively.
Alan Turing, English computer scientist, mathematician, logician, and cryptanalyst. (circa 1930) Before the 1920s, computers (sometimes computors) were human clerks that performed computations. They were usually under the lead of a physicist. Many thousands of computers were employed in commerce, government, and research establishments.
SEAC (Standards Eastern Automatic Computer) demonstrated at US NBS in Washington, DC – was the first fully functional stored-program computer in the U.S. May 1950: UK The Pilot ACE computer, with 800 vacuum tubes, and mercury delay lines for its main memory, became operational on 10 May 1950 at the National Physical Laboratory near London.
While at PARC, Tesler's work included Smalltalk, the first dynamic object-oriented programming language, and Gypsy, the first word processor with a graphical user interface (GUI) for the Xerox Alto. During this, along with colleague Tim Mott, Tesler developed the idea of copy and paste functionality and the idea of modeless software.
This is an accepted version of this page This is the latest accepted revision, reviewed on 4 March 2025. English mathematician, philosopher, and engineer (1791–1871) "Babbage" redirects here. For other uses, see Babbage (disambiguation). Charles Babbage KH FRS Babbage in 1860 Born (1791-12-26) 26 December 1791 London, England Died 18 October 1871 (1871-10-18) (aged 79) Marylebone, London ...
Computer networks: ARPANET splits off MILNET: Novell NetWare Research In Motion founded: NSFNET connects 5 Supercomputers: Computer graphics: ATI founded: Intel 82786 coprocessor Word processors: Word 1 for DOS: Word 1 for Mac: WordPerfect 4.2 for DOS: Spreadsheet: Excel for Mac: CAD/CAM: Autodesk releases AutoCAD 1.2,1.3,1.4: AutoCAD 2 ...