All this may seem a bit tedious and confusing, but it's worth knowing. Actually once you get used to the whole notion of a tree structured directory, the whole thing is really quite simple.
When you develop a filing system for your filing cabinet, two important considerations predominate. First, you want to make sure the information you store in your file cabinet is safe, and secondly you want to be able to find it quickly.
We are taking this journey into MS-DOS directory structure for exactly these same two reasons. Understanding how files and directories are named and how they relate to each other greatly increases your ability to safeguard your data and how to find it.