Ubuntu releases

    Ubuntu provides both long-term and short-term support releases. Long-term support releases (LTS), such as Ubuntu 10.14, are released every two years. Short-term releases, such as Ubuntu 10.04, are provided every six months between the LTS versions. They are designed to … Continue reading

    Ubuntu Software

    All Linux software for Ubuntu is currently available from online repositories. You can download applications for desktops, Internet servers, office suites, and programming packages, among others. Software packages are distributed primarily through the official Ubuntu repository. Downloads and updates are … Continue reading

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    Software Sources managed from Ubuntu Desktop

    You can manage your repositories with the Software Sources dialog, allowing you to enable or disable repository sections, as well as add new entries. This dialog edits the /etc/apt/sources.list file directly. Choose System | Administration | Software Sources to open the Software Sources … Continue reading

    Ubuntu Software Repositories

    Four main components or sections make up the Ubuntu repository: main, restricted, universe, and multiverse. These components are described in detail at: http://www.ubuntu.com/community/ubuntustory/components To see a listing of all packages in the Ubuntu repository see: http://packages.ubuntu.com To see available repositories … Continue reading

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    Document Viewers (PostScript, PDF, and DVI)

    Though located under Graphics submenu in the Applications menu (Applications | Graphics), PostScript, PDF, DVI, and ebook viewers are more commonly used with Office applications (see Table 5-5). You can install these viewers from the Ubuntu Software Center | Graphics … Continue reading


    KOffice is an integrated office suite for the K Desktop Environment (KDE) consisting of several office applications, including a word processor, a spreadsheet, and graphics applications. You can download it from the Ubuntu Software Center | Office | KOffice, or … Continue reading

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    GNOME Graphics Tools

    GNOME features several powerful and easy-to-use graphic tools. The gThumb application is an image viewer and browser that lets you browse images using thumbnails, display them, and organize them into catalogs for easy reference. The Eye of Gnome is the … Continue reading

    Multimedia support

    A listing of popular multimedia codecs available is shown in Table Of particular interest may be the liba52, faad2, and lame codecs for sound decoding, as well as the xvidcore, x264, libdvdcss, and libdvbpsi for video decoding. Ubuntu provides a … Continue reading

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    You can use the SquirrelMail Web mail tool to access mail from Internet email services using your Web browser. It will display a login screen for mail users. It features an inbox list and message reader, support for editing and … Continue reading

    Mail Clients

    Ubuntu supports a wide range of both electronic mail and news clients. Mail clients let you send and receive messages to and from other users on your system or users accessible from your network. News clients let you read articles … Continue reading

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    URL Addresses

    An Internet resource is accessed using a Universal Resource Locator (URL). A URL is composed of three elements: the transfer protocol, the hostname, and the pathname. The transfer protocol and the hostname are separated by a colon and two slashes, … Continue reading

    The KDE Rekonq Web Browser

    Rekonq is the new default Web browser for KDE (see http://reconq.sourceforge.net for more details). Rekonq is based on the WebKit layout engine, like Chrome and Apple’s Safari. It provides full integration with the KDE Desktop for tasks such as editing … Continue reading

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    Managing Process

    Should you have to force a process or application to quit, you can use the Gnome System Monitor Processes tab to find, select, and stop the process. You should be sure of the process you want to stop. Ending a … Continue reading

    System Tools

    Useful system tools as well as user specific configuration tools can be found in the Applications | System Tools, System | Preferences, System | Administration, and Applications | Accessories menus. The Administration menu holds tools like the System Monitor for checking on resource … Continue reading

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    Ubuntu Administrative Tools

    On Ubuntu, administration is handled by a set of specialized administrative tools, such as those for user management and printer configuration. To access the desktop-based administrative tools, you log in as a user who has administrative access. You created this … Continue reading

    System Administration

    Most administrative configurations tasks are performed for you automatically. Devices like printers, hard drive partitions, and graphics cards are detected and set up for you. There are cases where you may need to perform tasks manually like adding new users and installing … Continue reading

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    KDE Social Desktop

    KDE provides a set of Internet applications as part of the KDE Social Desktop initiative. The social desktop is based on a Web API called the Open Collaboration Services (OCS) that allows applications to interface easily with Internet services like … Continue reading

    Ubuntu Social Desktop: the MeMenu

    Ubuntu provides integrated social networking support for broadcasting, IM (Instant Messenger), and VoIP (Voice over Internet). User can communicate directly with other users on your network. These applications are installed automatically and are ready to use when you first start … Continue reading

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    GNOME Desktop Menu

    You can right-click anywhere on the empty desktop to display the GNOME desktop menu that includes entries for common tasks, such as creating an application launcher, creating a new folder, or organizing the icon display. Keep in mind that the … Continue reading

    GNOME Components

    From a user’s point of view, the GNOME interface has four components: the desktop, the panels, the main menus, and the file manager. You have two panels displayed, one used for menus, application icons, and running applets at the top … Continue reading

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    Plasma: desktop, panel, and plasmoids (applets)

    The primary component of the KDE4 desktop is the Plasma desktop shell. Plasma has containments and applets. Applets are referred to as plasmoids. These plasmoids are applets that operate within containments. On KDE4, there are two Plasma containments, the panel … Continue reading


    The Kubuntu edition of Ubuntu installs KDE as the primary desktop from the Kubuntu install disc. Kubuntu officially supports and installs KDE 4.4. You can download this disc from the Kubuntu site at: http://www.kubuntu.org/ You can also download the discs … Continue reading

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