how to uninstall software?

[-::ubermann::-]

hi all, i'm new to mac, checked some features but there is something wrong, how do i uninstall software?
i have aproximately 15 gb of preinstalled software, and i really dont need the major part, how do i get rid of this?
where is the ''control panel'' or something like YaST of linux?

by the way, i have mac and suse linux on my macbook, left 20GB disk free for documents, not formatted, which program formats me in ntfs or some common file system for both OS?

 

[WildCowboy]

Here is a guide to uninstalling apps in OS X.

As for the preinstalled apps, you'll find that GarageBand and its associated loops, iDVDs themes, and printer drivers take up a lot of space. Some people prefer to just wipe their machine and do a custom install of only the OS X components they want. It's effective, but not entirely necessary.

You can use a tool like WhatSize or OmniDiskSweeper to find large folders.