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The name can be up to eight characters in length. It is a good
idea to choose a name that describes the contents of the file.
You can use any characters except blank spaces and the
following symbols:
*\/[]:|<>+=;.?
The extension is optional and can be up to three characters
long. You can use the extension to describe the type of data
contained in the file-for example, TXT for a text file. When
you use an extension, separate it from the filename with a
period, like this:
DATA.TXT
Many application programs automatically add extensions to the
data files you create. Lotus® 1-2-3® Release 2, for example,
automatically uses the extension .WK1 for worksheet files.
Microsoft Word@ uses .DOC for its word processing files. Such
default extensions help an application program distinguish its
own data files from files created by other programs. If you have
programs that use default extensions, avoid using those
particular extensions in other contexts.
You can type the name and the extension in either lowercase
or uppercase letters, but do not use uppercase or lowercase
letters to distinguish between files. After you type the filename,
MS-DOS converts all lowercase letters to uppercase.
Using Directories
MS-DOS organizes files by storing them in directories. This
makes it easy for you to find and manage your files. Directories
also list specific information about each file, including the
filename, the size of the file, and the date and time you last
modified the file.
3-6
Using MS-DOS With Your Computer
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