Cut and Paste: the act of moving files/folders from one place to another within a volume.
Copy and Paste: the facility to duplicate (copy) files/folders in a computer program and add it to another place (folder, directory, volume, etc.)
There are many ways to copy to software to your Mac; they range from File Menu/Copy and Paste, right-click menu/copy and paste, and drag-and-drop, to keyboard commands. Please note that whatever option used, it is all controlled by Mac OS. Please refer to your Macintosh computer's documentation for various copy and paste methods or view the videos below for a couple of examples.
Seagate Video Tutorial: How to Cut & Paste/Copy & Paste Data on Your Mac
Click here to launch the movie for Mac OS X (10.5.x) Leopard.
Click here to launch the movie for MacOS (10.4.x) Tiger.