I agree... it's a ridiculous description, and obviously the point is to confuse a less technical person into thinking 2 TB requires more than a single top-of-the-line HDD to store.
Taking your request literally, 2 terabytes is equivalent to (roughly) one-37th of the currently-digitized items in the printed collection in the Library of Congress. Good day. :)
I don't understand. Can someone please translate to libraries of congress?