DIRECTORY 

A special file. Like every file, it has a filename. A directory is special 
because it only has filenames in it. Directories are useful because a disk 
can hold hundreds of files, and directories help to organize them. A directory 
whose name is in another directory is called a subdirectory. The DIR command 
will list the filenames in a directory.

For each file, DOS keeps track of its size in characters, and the date and 
time it was created. DOS also keeps track of some attributes (characteristics, 
properties) of each file, but does not report them very well to the curious 
user. The ATTRIB command can change some attributes. Attributes DOS keeps 
track of include:
	READ-ONLY	the file can only be read, no writing is allowed
        HIDDEN		the file will not be listed by the DIR command 
	SYSTEM-FILE	the file is an integral part of DOS 
	VOLUME-ID	the file is a disk label
	DIRECTORY	the file is a subdirectory
        ARCHIVE		the file was modified since being backed up
