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  2. Android Gingerbread - Wikipedia

    en.wikipedia.org/wiki/Android_Gingerbread

    The first phone with Android Gingerbread was the Nexus S. Gingerbread's user interface was refined, making it easier to master, faster to use, and more power-efficient. A simplified color scheme with a black background gave vividness and contrast to the notification bar, menus, and other user interface components.

  3. Android version history - Wikipedia

    en.wikipedia.org/wiki/Android_version_history

    The version history of the Android mobile operating system began with the public release of its first beta on November 5, 2007. The first commercial version, Android 1.0, was released on September 23, 2008. The operating system is developed by Google on a yearly cadence since at least 2011. [1]

  4. Android Jelly Bean - Wikipedia

    en.wikipedia.org/wiki/Android_Jelly_Bean

    Android 4.1 Jelly Bean was first unveiled at the Google I/O developer conference on June 27, 2012, with a focus on "delightful" improvements to the platform's user interface, along with improvements to Google's search experience on the platform (such as Knowledge Graph integration, and the then-new digital assistant Google Now), the unveiling of the Asus-produced Nexus 7 tablet, and the ...

  5. 2–3–4 tree - Wikipedia

    en.wikipedia.org/wiki/2–3–4_tree

    Space. O (n) O (n) In computer science, a 2–3–4 tree (also called a 2–4 tree) is a self-balancing data structure that can be used to implement dictionaries. The numbers mean a tree where every node with children ( internal node) has either two, three, or four child nodes: a 2-node has one data element, and if internal has two child nodes;

  6. Android (operating system) - Wikipedia

    en.wikipedia.org/wiki/Android_(operating_system)

    Android (operating system) Android is a mobile operating system based on a modified version of the Linux kernel and other open-source software, designed primarily for touchscreen mobile devices such as smartphones and tablets. Android is developed by a consortium of developers known as the Open Handset Alliance, though its most widely used ...

  7. 1 + 2 + 3 + 4 + ⋯ - Wikipedia

    en.wikipedia.org/wiki/1_%2B_2_%2B_3_%2B_4_%2B_%E...

    The partial sums of the series 1 + 2 + 3 + 4 + 5 + 6 + ⋯ are 1, 3, 6, 10, 15, etc.The nth partial sum is given by a simple formula: = = (+). This equation was known ...

  8. WordPress - Wikipedia

    en.wikipedia.org/wiki/WordPress

    WordPress (also known as WP or WordPress.org) is a web content management system.It was originally created as a tool to publish blogs but has evolved to support publishing other web content, including more traditional websites, mailing lists and Internet forum, media galleries, membership sites, learning management systems, and online stores.

  9. Antivirus software - Wikipedia

    en.wikipedia.org/wiki/Antivirus_software

    A user's computer could be infected by just opening or previewing a message. In 2005, F-Secure was the first security firm that developed an Anti-Rootkit technology, called BlackLight. Because most users are usually connected to the Internet on a continual basis, Jon Oberheide first proposed a Cloud-based antivirus design in 2008.