My Data Tree / External Hard Disk Drive

People always save the data in the external hard disk drive.I think the purpose why the people save the data is they want to improve one's
knowledge out of the data in external hard disk drive.
So I links learning with object of tree which symbolize knowledge. we can recognize the quantity of data instinctively
as tree effect in external hard disk drive.
In other words, My concept is that user can feel wide knowledge as growing the tree.
this concept meets even the user's sensitivity.