Mac OS X dramatically changed how your Mac is organized. Most of the previously standard Mac OS folders are gone, and many new standard folders, often called directories in Mac OS X lingo, have come into being. You have seen several of these as you learned about using the Go menu, working with Finder windows, and so on.
Some directories, such as the Mac OS X System directory, are critical to your Mac's operation, whereas others are merely organizational devices, such as the Documents directory within each user's Home directory.
There are two general groups of directories you will work with: those for the system and those for users.
There are two main directories that provide access ...