Data Card Definitions

I am trying to explain to our implementaiton core team the differences between Data Cards, Folder Cards, and Template Cards. Instinctively, I just do what I need but now I am taking a step back and trying to explain it to those just learning. The more I read the Admin Guide the more I seem to confuse myself. Anyway, would any of you wonderful folks out there give me a good definition of the differences, uses etc of the different cards in plain english? Thanks, all...Been away from EPDM for a couple of months now and getting back into the swing but apparently, a couple of brain cells didn't make the move with me. Thanks!

SolidworksSolidworks Pdm enterprise Pdm