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  2. Windows 10 editions - Wikipedia

    en.wikipedia.org/wiki/Windows_10_editions

    At the time of launch, Microsoft deemed Windows 7 (with Service Pack 1) and Windows 8.1 users eligible to upgrade to Windows 10 free of charge, so long as the upgrade took place within one year of Windows 10's initial release date. Windows RT and the respective Enterprise editions of Windows 7, 8, and 8.1 were excluded from this offer.

  3. Microsoft - Wikipedia

    en.wikipedia.org/wiki/Microsoft

    1985–1994: Windows and Office Windows 1.0 was released on November 20, 1985, as the first version of the Windows line. Microsoft released Windows on November 20, 1985, as a graphical extension for MS-DOS,: 242–243, 246 despite having begun jointly developing OS/2 with IBM that August.

  4. Panama Canal - Wikipedia

    en.wikipedia.org/wiki/Panama_Canal

    Location of Panama between the Pacific Ocean (bottom) and the Caribbean Sea (top), with the canal at top center. The Panama Canal (Spanish: Canal de Panamá) is an artificial 82-kilometre (51-mile) waterway in Panama that connects the Atlantic Ocean with the Pacific Ocean, cutting across the Isthmus of Panama, and is a conduit for maritime ...

  5. Weimar Republic - Wikipedia

    en.wikipedia.org/wiki/Weimar_Republic

    The Weimar Republic, [c] officially known as the German Reich, [d] was a historical period of Germany from 9 November 1918 to 23 March 1933, during which it was a constitutional federal republic for the first time in history; hence it is also referred to, and unofficially proclaimed itself, as the German Republic.

  6. World Wide Web - Wikipedia

    en.wikipedia.org/wiki/World_Wide_Web

    The World Wide Web functions as an application layer protocol that is run "on top of" (figuratively) the Internet, helping to make it more functional. The advent of the Mosaic web browser helped to make the web much more usable, to include the display of images and moving images ( GIFs ).

  7. Pi - Wikipedia

    en.wikipedia.org/wiki/Pi

    The number π ( / paɪ /; spelled out as " pi ") is a mathematical constant that is the ratio of a circle 's circumference to its diameter, approximately equal to 3.14159. The number π appears in many formulae across mathematics and physics.

  8. AOL Desktop Gold | 30-Day Free* Trial | AOL Products

    www.aol.com/products/browsers/desktop-gold

    AOL Desktop Gold is convenient and Easy to Use We kept the design and features you love, to ensure a smooth transition to our latest version. All your usernames, passwords, toolbar icons and mail ...

  9. Principal component analysis - Wikipedia

    en.wikipedia.org/wiki/Principal_component_analysis

    Principal component analysis ( PCA) is a linear dimensionality reduction technique with applications in exploratory data analysis, visualization and data preprocessing . The data is linearly transformed onto a new coordinate system such that the directions (principal components) capturing the largest variation in the data can be easily identified.