# The main directory of a disk is called the ____ directory.

 [ A ]    network [ B ]    Home [ C ]    Other than those given as options [ D ]    folder [ E ]    root
 Answer : Option E Explanation : An operating system maintains a list of files called a directory for each disk. The main directory of the disk is called the root directory. The root directory is provided by the operating system and has a special name; for example, in DOS systems the root directory is called. The root directory is sometimes referred to simply as the root.