A directory is a table of content for a disk, 1t contains the names of your files, their sires and the dates they were last modified. There are two types of directories. The Root Directory: This is the type of directory created by the computer when a disk is formatted. We have only one root directory. The Sub-Directory: This is a directory created by you. The sub-directory is like a branch on the root directory. We have several sub-directories. Sub-directories are used to bring together files that belong to the same family. The number of sub-directories that the root directory of a disk can.contain depends on the type of disk. The root directory of a double density disk can hold 1-12 sub-directories, while root directory of a high-density disk can hold 2-24 sub-directories (i.e. when dealing with floppy disk). There can be 5-12 sub-directories on the root directory of a fixed disk all depends on the available space on the disk. DIRECTORY TREE: Directories and sub-directories form structure called Directory Tree. That is, the organization of files, and sub-directories on a disk is called Directory Tree. To see the directory on your computer, you type the external.command TREE. (When you type TREE you press Enter Key). Strictly speaking all directories other than the root directories are sub- directories. A sub-directory is sometimes called a child directory and the directory that contains the sub-directory is sometimes called a parent directory. You can as well create a sub-directory under sub-directory. Directory Nar the back Except for the root directory, which is always represented by (), each directory has a name and sometimes an extension. Directory names have the same rules or commands with filenames. Two sub- directories in the some directory cannot have the same but sub-directories of different dire The current directory can be referred to by its name or by a period. The parent directory of the current directory can be referred to its name or by double period. When you type DIR command to view files and directories in a directory, you will see this symbol listed representing the current directory of the parent directory. can have the same name. Paths: The paths specify the allocation of a file within a directory tree. It is the route Ms-Dos must travel starting at the root directory to get files in another directory. For example: (i.e the root directory will travel from HOME to get to CLASS e.g (HOME/CLASS}) Means Current Drive Means Current Directory C:> Means Dos Prompt
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