Epson Apex 20020 - Manual (Page 58)

Turning Off the Computer
Before turning off your computer, be sure to save your data and
exit the program you are using. Then remove any diskettes
from the diskette drive. Turn off the computer first and then
turn off the monitor and any peripherals.
Using Disks and Disk Drives
The disk drives in your computer allow you to store data on
disk and retrieve it when you want it. The Apex 200\20
has one 1.2MB diskette drive and one 20MB hard disk. The
Apex 200\40 has one 1.2MB diskette drive and one 40MB
hard disk.
This section explains how disks work and tells you how to do
the following:
Choose diskettes
Care for your diskettes and diskette drives
Insert and remove diskettes
Write-protect diskettes
Make backup copies of your diskettes
Use a single diskette drive
Use a hard disk drive.
How Disks Store Data
The diskette you insert in your computer’s diskette drive is
made of flexible plastic, coated with magnetic material. It is
enclosed in a square jacket that is slightly flexible. Your
computer stores data on the diskette by recording on the
magnetic surface.