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+\documentclass{beamer}
+\usetheme{linutronix}
+\usepackage{german}
+\usepackage[utf8]{inputenc}
+\usepackage{pgf}
+\usepackage{graphicx}
+\usepackage{lxextras}
+
+\lstset{
+	language=C++,
+	numbers=left,
+	stepnumber=1,
+	numbersep=5pt,
+	numberstyle=\tiny,
+	breaklines=true,
+	breakautoindent=true,
+	postbreak=\space,
+	tabsize=2,
+	basicstyle=\ttfamily\footnotesize,
+	showspaces=false,
+	showstringspaces=false,
+	extendedchars=true,
+	backgroundcolor=\color{lbcolor},
+	keywordstyle=\bf ,
+	commentstyle=\color{green},
+	stringstyle=\color{red}
+}
+
+\title{Block \lq Middleware\rq}
+\institute{Linutronix GmbH}
+
+\begin{document}
+
+\maketitle
+
+\section{CORBA}
+
+\begin{frame}
+\frametitle{Common Object Request Broker Architecture}
+\begin{block}{abstracts}
+\begin{itemize}
+\item operating systems
+\item programming language
+\item transport protocol
+\end{itemize}
+\end{block}
+\end{frame}
+
+\begin{frame}
+\frametitle{Functional principle}
+\begin{center}
+\includegraphics[height=0.8\textheight]{images/orb.jpg}
+\end{center}
+\end{frame}
+
+\begin{frame}
+\frametitle{Functional principle}
+\begin{block}{CORBA Services}
+\begin{itemize}
+\item Naming Service
+\begin{itemize}
+\item Task A: bind object ior with name to Naming Service
+\item Task B: resolve object ior by name from Naming Service
+\end{itemize}
+\item Messaging Service
+\begin{itemize}
+\item Task A: send messages to Messaging Service (Publisher)
+\item Task B: subscribe for messages, e.g. filtered by topic, from the
+	Messaging Service
+\end{itemize}
+\end{itemize}
+\end{block}
+\end{frame}
+
+\begin{frame}
+\frametitle{Real-time CORBA extensions}
+\begin{center}
+\includegraphics[height=0.7\textheight]{images/rtcorbaext.jpg}
+\end{center}
+\begin{raggedright}
+%\scriptsize OMG Real-time CORBA speccification
+\end{raggedright}
+\end{frame}
+
+\subsection{ACE/TAO framework}
+
+\begin{frame}
+\frametitle{Software architecture}
+\begin{center}
+\includegraphics[height=0.7\textheight]{./images/ace.jpg}
+\end{center}
+\begin{raggedright}
+\scriptsize http://cs.wustl.edu/schmidt/ACE
+\end{raggedright}
+\end{frame}
+
+\begin{frame}
+\frametitle{TAO, real-time CORBA distribution}
+\begin{block}{Facts}
+\begin{itemize}
+\item c++ implementation
+\item based on ACE (operating system independent)
+\item RTCORBA specification implemented
+\item open source software
+\item commercial support
+\item widely used
+\end{itemize}
+\end{block}
+\end{frame}
+
+\end{document}