Use Linux

Linux is a Unix-like operating system. One defining feature of Linux
is that it is freely available as Open Source software under
the GNU Public License. (GPL)

Unlike Windows, there are many versions (called distributions) of Linux available. CASLab uses a slightly modified
version of Ubuntu Linux.  Ubuntu is based on Debian GNU/Linux and is available for Intel, AMD64 and PowerPC systems.

The graphical interface used by CASLab is the XFCE desktop environment.

For information on how to use the Linux desktop, please see the section:
Using the Linux Environment.

As Linux is closely related to Unix, this introduction to Unix as well as our previous documentation on Solaris would likely be quite useful to new users.