Apple IIe - Page 181

Cassette
and
Disk Storage with
the
Apple
lie
181
DISK
OPERA
TING
SYSTEMS
An
operating
system can
be
defined
as
a
group
of
programs
which
manage
the
computer's
operation.
A disk
operating
system can
be
defined
as
a
group
of
programs
that
manage
the
transfer
of
data
to
and
from
a storage
device
such
as
disk
or
magnetic
tape.
The
standard
operating
system
provided
with
an
Apple
I le
with
a
Disk
Drive
II
is
Apple
DOS,3.3
(referred
to
simply
as
DOS).
Other
operating
systems such
as
PASCAL and
CP
/ M are also available
for
the
Apple
I le.
Apple's
DOS
will
be
discussed
in
detail in this chapter.
DISK
II
SYSTEM
The
name
of
the
floppy
disk
drive
used
by
the
Apple
lie
is
the
Disk
II.
The Disk
II
system
includes
the
disk
drive
(see
Illustration
5-8), disk
controller
card (see
Illustration
5-9), a
cable
used
to
connect
the
disk
controller
card
to
the
disk
drive
(see
Illustration
5-9), a System
Master
diskette, and a
BASICS
dis~ette.
Installing
The Disk
II
System
First
of
all,
open
the
rectangular
opening
l~beled
1
on
the
rear
of
the
lie.
Next, insert
the
free
end
of
the
cable
connected
to
the
Disk
II
through
this
opening
.
Locate
one
of
the
U-shaped
clamps
and
two
jack screws (see
1
llustration
5-10).
Find
the
metal
bar
on
the
cable.
Open
the
clamp
slightly
and
slide
it
over
the
cable
and
the
metal
bar. The
flat
side
of
the
clamp
should
be
positioned
against
the
cable.
The
raised side
of
the
clamp
should
be
positioned
against
the
metal
bar. Feed
the
cable
through
rectangular
opening
#1
until
the
clamp
can
be
placed
in
the
opening.
Position
the
clamp
in
the
opening
, and
install
the
jack screws
into
the
nuts
on
the
clamp.
Tighten
the
screws
with
a
small
wrench.(See
Illustration
5-11.)