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\author{Thomas Damgaard Nielsen $<$damgaard@diku.dk$>$ }

\date{\today}
\title{Three-figure exercise}
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\begin{document}
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A microprocessor is an array of transistors. 
The transistors are organized in way that enables them to perform computations. 
The complexity of a microprocessor is proportional to the number of transistors it consists of\footnote{However, modern microprocessors incorporate cache memory which consists of relatively large arrays of RAM. These RAM arrays contains a lot of transistors but they are hardly as complex as the computational units in the processor.}. 

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\appendix

\begin{figure}
 \centering
 \includegraphics[width=300pt]{figures/p4.jpg}
 % p4.jpg: 1179666x1179666 pixel, 0dpi, infxinf cm, bb=
  \caption{The figure shows an Intel Pentium 4 CPU, a modern microprocessor. Image is taken from: \tiny{\texttt{http://www.intel.com/museum/online/hist\_micro/hof/index.htm}}}
 \label{fig:p4}
\end{figure}

\begin{figure}
 \centering
 \includegraphics[width=300pt]{figures/diagram.jpg}
 % p4.jpg: 1179666x1179666 pixel, 0dpi, infxinf cm, bb=
 \caption{The figure shows \ldots. Image is taken from: \tiny{\texttt{http://homepage.cs.uri.edu/faculty/wolfe/book/Readings/Reading04.htm}}}
 \label{fig:diagram}
\end{figure}

\begin{figure}
 \centering
 \includegraphics[width=300pt]{figures/colossus.jpg}
 % p4.jpg: 1179666x1179666 pixel, 0dpi, infxinf cm, bb=
 \caption{The figure shows \ldots.Image is taken from: \tiny{\texttt{http://www.codesandciphers.org.uk/lorenz/colossus.htm}}}
 \label{fig:colossus}
\end{figure}

\end{document}