Epson 10020 User Manual

To 

run an external command, MS-DOS must be able to locate

the file containing the command’s instructions. If it cannot

find the file, MS-DOS gives you an error message. If you have

the Apex 100\20, all the external files are on your hard disk

(drive C) in a directory named \DOS; so MS-DOS can find

any external command you need.

If you have the Apex 100 (with no hard disk), you must insert

the proper diskette to access an MS-DOS command. For

example, if you want to use the FORMAT program, you must

insert the Startup diskette in one of the diskette drives. Then

you can either log onto that drive and give the FORMAT

command or specify the appropriate drive when you enter the
command.

For example, if the Startup diskette is in drive A and you are
logged onto that drive, and you want to format a diskette that

is in drive B, you could enter the command as follows:

FORMAT B:

In this case, MS-DOS looks on drive A, the default drive, for
the file named FORMAT.COM and finds it there.

If you are logged onto drive B, however, you would need to

enter the command like this:

A:FORMAT B:

This tells MS-LXX to look on drive A for FORMAT.COM.

To enter an MS-DOS command, you need to type the

command in the correct format. The command format provides
MS-DOS with the information needed to perform a task.

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