Epson Apex 20020 - Manual (Page 70)

Epson also includes the XTREE utility with MS-DOS. XTREE
provides simple menus that allow you to move, create, delete,
and rename files and directories. These capabilities are
especially useful on the hard disk drive. See Chapter 4 for an
introduction to XTREE or see your MS-DOS Reference
Manual for complete instructions.
The hard disk in your computer has been prepared at the
factory so it contains all the MS-DOS system files and
automatically loads MS-DOS when you turn on or reset the
computer. If your computer does not seem to be working
correctly, however, you may need to repeat some of the
procedures necessary to prepare it for use. If you think this
may be the case, see Appendix E for instructions.
Backing up hard disk files
While the hard disk is very reliable, it is essential to back up
your hard disk files to diskettes in case you lose some data
accidentally. Make copies of all your system and application
program diskettes before copying the programs to the hard disk.
After you create data files on the hard disk, be sure to copy
them to diskettes whenever you revise them to keep your
backup diskettes up-to-date.
You can use the MENU utility or the BACKUP command to
back up your hard disk files. Use the MENU utility or the
DISKCOPY command to make copies of your system and
program diskettes. For instructions on using these programs,
see Chapter 4 (or see your MS-DOS manual).
Preparing the hard disk for moving
Before you move the computer, you need to secure the
read/write heads inside the hard disk drive. Securing the
read/write heads moves them to a region of the disk surface
that does not contain data, and locks them in position. This
prevents the disk from being damaged if it is bumped
accidentally.