Directories and SubdirectoriesData stored on disks requires a system of retrieval. Computers use hierarchalsystems that go from general information in directories to specificinformation in subdirectories. Carefully plan the organization of informationon disks and hard drives. Directory files are groups of files that are extensions of the list file. Themain file or directory, called the. root directory or parent directory, isdistinguished by a backslash (\). Other directories have file names followedby the abbreviation dir and are sometimes called child directories. Directories are limited in the number of files they can hold, whichnecessitates creating subdirectories. Figure 8-19 shows directories or files of general data. Figure 8-19.A subdirectory from C:Drive. Continued on next page