Epson 20020 Manuel D’Utilisation

If you press 

Enter 

when a command line has an error in it, the

screen displays an error message. Usually, the command prompt

reappears so you can try again. Type the correct command and

press 

Enter.

All your data and programs are stored in files on disk. A data
file contains information, such as words, numbers, or pictures.
A program file contains instructions that the computer can

understand and execute.

The kind of file you create depends on the MS-DOS command

or application program you use to create it. In general, a data

file that you create using an application program is stored in a

special format. If you use a different application program to
read that file, you may encounter problems.

When you create a file, you need to give it a name. You must

name your files in a certain format required by MS-DOS.

Each file must have a unique filename so you can retrieve it
when you need to. The filename consists of two parts: the name

and the extension (which is optional).

You can choose a name up to eight characters long. Create a

name that identifies the information the file contains. The
name can contain any characters or numbers except for blank

spaces and the following symbols:

Using MS-DOS With Your Computer

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