User's Manual

Because you may swap diskettes this way often, it is easy to forget

which diskette is which. One way to avoid accidentally losing data is to

hold the diskette for one drive in your left hand and the diskette for the

other in your right. You can also place a write-protect tab on your source

diskette. For more information on using a single floppy disk drive with

MS-DOS, see your MS-DOS manual.

Using a Hard Disk Drive

The internal hard disk for the Equity III has a capacity of 20 mega-

bytes-about 20 million characters. This is equivalent to approximately

60 double-density floppy disks. Using a hard disk reduces the number of

floppy disks you need and eliminates much of the disk-swapping you do

when you use floppy disks. You can do almost all of your work on the

hard disk and copy your files to floppy disks as needed (to make back-

ups, for example).

Although the hard disk is very reliable, it is essential to back up all

your hard disk files on floppy disks in case you lose some data acciden-

tally. Use the MS-DOS ARCHIVE program to back up your hard disk

files.

Although it has a lot of storage space, keep only files you use regu-

larly on the hard disk, to ensure you always have plenty of space availa-

ble. Store your other files on floppy disks.

Before you can use the Epson internal hard disk, you must do the

following things to prepare it:

Use the MS-DOS SETUP program to tell your system it has a hard

disk.

Partition the hard disk to run the MS-DOS operating system using

the MS-DOS program HDPART

l Format the MS-DOS partition with the MS-DOS program

HDFORMAT and include the /S option to copy the MS-DOS oper-

ating system to the hard disk.

Copy the MS-DOS utility programs to the hard disk using XTREE

or the Copy command.

Your MS-DOS system diskette contains all of these programs. For

instructions on how to use them, refer to your MS-DOS manual.