"It used to be that things were simple but not anymore.
That program you want to install may require a ton of dependancies
to be met. You can try and do that by hand but I'll bet you would
like to have a way that it can be done for you, automatically. Got
an internet connection? I want to tell you about some programs that
can help you keep your system up to date.
I want to introduce you to some of the package management
programs that I would like you to consider as a new user of Debian
GNU/Linux. I have graphical user interfaces and I have some that
run off a console. It's your choice and I am not going to try and
make it for you.
So without further ado, let's get started shall we?"