Copy vs. backup
This might be a stupid question...
I use Time Machine to backup my system to an external hard drive. My question concerns the fact that I want a complete copy of iTunes (actual music files, songs, artwork, etc) backed up in Time Machine such that, if my Mac drive fails, when I purchase a new computer, I will have a complete set of the music ready to transfer on to the new computer.
However, I notice that the language used in these forums utilize the terms "back up" and "copy". Is there a difference? If so, can you please tell me how to accomplish the above goal?
Thanks very much!
iMac, iOS 4.3.3