Epson 386SX - Manual (Page 92)

Using Two Diskette Drives
If you have two diskette drives, you can use the top drive (A)
for loading the operating system and application programs and
the second drive (B) for creating data. If you have a hard disk,
you will probably need the diskette drives just to copy files to
and from the hard disk and to copy diskettes.
Note
You can load MS-DOS from an application program diskette
if that diskette contains the MS-DOS system files.
--
Using a Hard Disk Drive
Working with a hard disk is similar to working with a diskette.
However, the hard disk provides several advantages:
A 40MB hard disk can store as much data as approximately
30 1.44MB diskettes, and a 100MB hard disk can store as
much data as approximately 70 1.44MB diskettes.
Your computer can perform all disk-related operations
faster.
You can store frequently used programs and data files on the
hard disk, eliminating the inconvenience of swapping
diskettes to access different files.
The added storage capacity makes it easy to move back and
forth between different programs and data files. However,
because it is so easy to add programs and files to your hard disk,
you may find yourself trying to organize hundreds of files.
MS-DOS lets you keep related files together in directories and
subdirectories so they are easy to find and use. See Chapter 4 for
instructions on how to use directories.
3-22 Using the Equity 386SX