Specifications

CHAPTER.001
CHAPTER.002
CHAPTER.003
and so on.
Like MS-DOS commands, filenames and extensions can be
entered in either upper or lower case, but are always displayed
on the screen in upper case. However, since MS-DOS converts
lower case filenames into upper case, it is possible to
inadvertently erase an existing file by saving a new file with a
lower case name. To be safe, always make sure that you have
given a unique name to each file on a disk.
Disk Directories
MS-DOS keeps track of the files stored on your disks by
maintaining a “directory” on each disk. These directories are
listings of the filenames and extensions, along with certain
information about the files themselves, such as when the file
was created or updated last.
The DIR Command
MS-DOS provides a simple command that allows you to look
at the directory of any particular disk. This is the DIR
command. Enter the command as follows:
Using MS-DOS With Your Computer
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