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The top bar incorporates common functions used in Ubuntu 12.04. The \marginnote{The top bar is also referred as the top panel.} right part of the bar is called the \emph{indicator area}. Each installation of Ubuntu may contain slightly different types and quantities of icons based on a number of factors, including type of hardware and available on-board accessories. The most common indicators are (starting from the left): \marginnote{For more about: \begin{itemize} \item the \application{Messaging Indicator} see \seclink{sec:micro-blogging}; \item the \application{Network Indicator} see \seclink{sec:getting-online}; \item the \application{Session Indicator} see \seclink{sec:session-options}. \end{itemize}} \begin{description} \item[Keyboard indicator] allows you to select the keyboard layout you would like and change your keyboard preferences. \marginnote{The \emph{keyboard indicator} only shows when you have chosen more than one keyboard layout in the keyboard settings during installation.} \item[Messaging indicator] incorporates all your \emph{social applications}. From here, you can access your instant messenger, your email client, your microblogging application, and even \application{UbuntuOne}, your personal cloud! \item[Network indicator] allows you to manage your network connections and connect quickly and easily to a wired or wireless network. \item[Sound indicator] provides an easy way to adjust the sound volume as well as access your music player and sound settings. \item[Clock] displays the current time and provides an easy way to access your calendar and \emph{Time and Date settings}. \item[User menu] allows you to easily switch between different users and access your online and user \emph{accounts}. \item[Session indicator] provides an easy way to access \emph{System Settings}, \emph{Updates}, Printers, and session options for locking your computer, logging out of your session, restarting the computer, or shutting down completely.
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