(via shibuvarkala.blogspot.com)
DOSBOX RUN DOS APPLICATIONS AND GAMES IN UBUNTU LINUX
The Fundamental Operating System DOS is still alive. For basic study purpose, DOS is Used in most of the Universities. Now Also people like DOS games. The Famous C language Compilers are woking only is DOS. You can Make a virtual DOS environment Linux.
sudo apt-get install dosbox
(Your can use Synaptic Package Manager and search for dosbox)