Английский язык в информационных технологиях. Демкина Л.М. - 41 стр.

                                      MULTILEVEL DIRECTORIES
When there is more than one user on your computer, or when you are working on several different projects,
the number of files in the directory can become large and unwieldy. To deal with this large number of files,
you may want to keep your files separate from a coworker's or organize your programs into convenient
categories.
In an office, you can separate and organize files that belong to different people or that relate to specific
projects by putting them in different file cabinets. For example, you might put your accounting programs in
one file cabinet and your letters in another. You can do the same thing with MS-DOS by putting your files
into different directories.
Directories let you group your files in convenient categories. These directories, in turn, may contain other
directories (referred to as subdirectories). This organized file structure is called a multilevel directory
system.
Note: The maximum number of files or directories that the root directory may contain varies, depending on
the type of disk and disk you are using. Usually the maximum number is 112 for a double-sided, double-
density, 5.25-inch floppy disk. The maximum number of entries in the root directory of a 1.44 megabyte
3.5-inch floppy disk is 224. This maximum capacity for a root directory may vary depending upon how the
disk is formatted. The number of subdirectories on a disk is not restricted.
The first level in a multilevel directory is the root directory, which is created automatically when you
format a disk and start putting files on it. Within root directory, you can create additional directories and
subdirectories.
As you create new directories for groups of files, or for other people using the computer, the directory
system grows. And within each new directory you can add new files or create new subdirectories.
You can move around in the multilevel system by staring at the root and "traveling" through intermediate
subdirectories to find a specific file. Conversely, you can start anywhere within the file system and travel
toward the root. Or you can go directly to any directory without traveling through intermediate levels.
The directory that you are in is called the working directory. The filenames and commands discussed in
this chapter relate to your working directory and do not apply to any other directories in the structure.
When you start your computer, you start out in the working directory. Similarly, when you create a file,
you create it in the working directory.




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