leaving
it
close
to
a
powerful
magnetic field, and so on.
Failure to
make
a
backup copy
may cause
you
to
lose hours, or days, of
work.
In Chapter
3,
you
will learn how to
make
copies
of the diskettes
that
came
in
your
ProFile accessory
kit. These diskettes can
be used
in the
Apple llls built-in drive
or in an attached drive
such as the
Disk lll.
Remember
that some diskettes
are
protected
and cannot be copied.
lf
you
need
more detailed
information,
your
Apple lll Owner's Guide
ìncludes
a sectron on
how to use the System Utilities
Copy-volume
command
to make cooies of diskettes.
Operating
Your
Drive
With the exception
of the
AC
power
switch,
the
ProFile drive contains
no operating
controls. After
initial
power
up, all drive operations
are
controlled
by the
Apple lll. Programs that
keep track of
files,
save
information, and
retrìeve
information are
part
of the
Apple lll's operating
system.
The few special commands
required
to
use
the drive and
manipulate
files are described
in the
reference manual for the
product
or
programming
language
you
are
using. For example,
if
you
are using
Business
Basic as
your
Apple
lll's
programming
language,
you
should
first read, and later
refer, to the applicable chapters
of the Apple
lll
Business
Basic Reference
l\4anual.
Rememberl Before
your
Apple lll can communicale
'/vith
the ProFile.
the ProFile device driver
musl be added lo
the SOS.DRIVER
file ol
your
bool diskettes as
described
in
Chapler
3.
Backing
Up
Your ProFile
Files
Backing
up
is the
process
of copying
your ProFile files
onto
one or
more
"floppy"
diskettes. Included
ìn
your
ProFile accessory
kit is a
Backup
lll diskette and a
Backup lll User's
Manual that explains
how to
run the
Backup lìl
program.
This
program
is
extremely
useful
when
you
are using
the ProFile as
your primary
source
of data storage and
an
Apple
flexible disk drive, such
as
your
Apple
lll's built-in drjve or an
attached
Disk
lll drive, as
your
backup
device.
Preparing
To
Use
Your Drive
17
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