Directories contain groups of files that have something in common. In Windows95, directories are referred to as folders . If you are using large icons, a folder would be represented by the item in Figure 1 . If you are using small icons, a folder would be represented by the item in Figure 2 . A disk is the trunk of the tree.
Directories are branches.
Sub-directories are branches that are growing off other branches. Files would be equivalent to leaves growing off the branches. Individual files are represented by many different types of icons. The icon used to represent a file depends on the type of file it is. For example, a document would most likely be represented by an icon for the word processor you most frequently use.