what is SUPER COW? I have super user access, how do I get root access in my terminal?

Super Cow Powers is a term for an easter egg in the apt-get (http://en.wikipedia.org/wiki/Advanced_Packaging_Tool) command; there are related easter eggs in aptitude (http://en.wikipedia.org/wiki/Aptitude_(software)). See http://en.wikipedia.org/wiki/Easter_egg_(virtual) and http://en.wikipedia.org/wiki/Aptitude_(software)#Easter_egg.

ek@Apok:~$ apt-get moo
         (__)
         (oo)
   /------\/
  / | ||
 * /\---/\
    ~~ ~~
...."Have you mooed today?"...
ek@Apok:~$ aptitude moo
There are no Easter Eggs in this program.
ek@Apok:~$ aptitude -v moo
There really are no Easter Eggs in this program.
ek@Apok:~$ aptitude -vv moo
Didn't I already tell you that there are no Easter Eggs in this program?
ek@Apok:~$ aptitude -vvv moo
Stop it!
ek@Apok:~$ aptitude -vvvv moo
Okay, okay, if I give you an Easter Egg, will you go away?
ek@Apok:~$ aptitude -vvvvv moo
All right, you win.

                               /----\
                       -------/ \
                      / \
                     / |
   -----------------/ --------\
   ----------------------------------------------
ek@Apok:~$ aptitude -vvvvvv moo
What is it? It's an elephant being eaten by a snake, of course.

What it means to say that aptitude does not have Super Cow Powers is that it does not have the ability to display the Super Cow displayed when you run "apt-get moo". This is one of the very few capabilities present in apt-get but not in aptitude. ;-)

In Ubuntu, you run commands as root using sudo, or graphical programs as root using gksu or gksudo. See https://help.ubuntu.com/community/RootSudo, http://manpages.ubuntu.com/manpages/natty/en/man8/sudo.8.html, and http://manpages.ubuntu.com/manpages/natty/en/man1/gksu.1.html. For example, to run "apt-get install chocolate-doom" as root, you would run:

sudo apt-get install chocolate-doom

Not a bug. It is an easter egg.