ok, ummmmmmm, let me try to break this down this time. this is fatty's computer science for dummies :3
did YOU, meaning YOURSELF install the games on YOUR computer? if so, then you are the so called 'admin', because you have the right to be able to install and uninstall games, software, and what ever it is on your computer.
lets say you want to limit the use of certain things on your computer (such as games, websites, est) to others, then that would be a limited user.
now, lets say if you go out, and you do not want to allow anyone else to access your data and sort, do you notice you can create more then one login's on your computer? some people put passwords on their login to prevent others from using their account. but others create two logins, one for themselves, and one for guests to use. the guests cant use all the programs that owner uses, they are only limited to what the owner put into that login (although it is really o use the owners progras anyway -_-)
the LAST part im not really sure, but the first two is what i think hes trying to ask us. if you guys still dont get it, good god, please help us all. lol