<s>
The	O
Apple	B-Operating_System
Remote	I-Operating_System
is	O
a	O
remote	B-Protocol
control	I-Protocol
introduced	O
in	O
October	O
2005	O
by	O
Apple	O
Inc	O
.	O
for	O
use	O
with	O
a	O
number	O
of	O
its	O
products	O
with	O
infrared	O
capability	O
.	O
</s>
<s>
It	O
was	O
originally	O
designed	O
to	O
control	O
the	O
Front	B-Operating_System
Row	I-Operating_System
media	O
center	O
program	O
on	O
the	O
iMac	B-Device
G5	I-Device
and	O
is	O
compatible	O
with	O
many	O
subsequent	O
Macintosh	O
computers	O
.	O
</s>
<s>
The	O
first	O
three	O
generations	O
of	O
Apple	B-Device
TV	I-Device
used	O
the	O
Apple	B-Operating_System
Remote	I-Operating_System
as	O
their	O
primary	O
control	O
mechanism	O
.	O
</s>
<s>
It	O
has	O
now	O
been	O
replaced	O
with	O
the	O
Siri	B-Device
Remote	I-Device
in	O
the	O
fourth	O
generation	O
.	O
</s>
<s>
Prior	O
to	O
the	O
Apple	B-Operating_System
Remote	I-Operating_System
,	O
Apple	O
produced	O
several	O
nameless	O
IR	O
remotes	O
for	O
products	O
such	O
as	O
the	O
Macintosh	B-Device
TV	I-Device
,	O
TV	O
tuner	O
expansion	O
boards	O
,	O
and	O
the	O
PowerCD	B-Device
drive	I-Device
.	O
</s>
<s>
The	O
original	O
Apple	B-Operating_System
Remote	I-Operating_System
was	O
designed	O
with	O
six	O
buttons	O
and	O
made	O
of	O
white	O
plastic	O
.	O
</s>
<s>
Its	O
shape	O
and	O
layout	O
resembled	O
the	O
first-generation	O
iPod	B-Application
Shuffle	I-Application
.	O
</s>
<s>
The	O
new	O
remote	O
was	O
released	O
along	O
with	O
the	O
27-inch	O
aluminum	O
iMacs	B-Device
and	O
multi-touch	B-Application
Magic	O
Mouse	O
.	O
</s>
<s>
Replacement	O
of	O
the	O
CR2032	B-Algorithm
battery	I-Algorithm
in	O
the	O
original	O
remote	O
is	O
done	O
with	O
a	O
small	O
pointed	O
object	O
such	O
as	O
a	O
paper	O
clip	O
at	O
the	O
bottom	O
right	O
edge	O
of	O
the	O
device	O
,	O
where	O
the	O
battery	O
slides	O
out	O
on	O
a	O
tray	O
.	O
</s>
<s>
The	O
Apple	B-Operating_System
Remote	I-Operating_System
's	O
original	O
function	O
was	O
to	O
enable	O
navigation	O
in	O
Front	B-Operating_System
Row	I-Operating_System
,	O
which	O
allows	O
users	O
to	O
browse	O
and	O
play	O
music	O
,	O
view	O
videos	O
(	O
DVDs	O
and	O
downloaded	O
files	O
)	O
and	O
browse	O
photos	O
.	O
</s>
<s>
Although	O
Front	B-Operating_System
Row	I-Operating_System
was	O
removed	O
from	O
OS	B-Application
X	I-Application
10.7	I-Application
and	O
later	O
,	O
some	O
Apple	O
software	O
still	O
works	O
with	O
the	O
remote	O
.	O
</s>
<s>
It	O
can	O
still	O
be	O
used	O
to	O
control	O
presentations	O
in	O
Apple	B-Protocol
Keynote	I-Protocol
,	O
slide	O
shows	O
in	O
iPhoto	B-Operating_System
and	O
Aperture	B-Operating_System
,	O
DVD	O
films	O
via	O
DVD	O
Player	O
,	O
and	O
to	O
play	O
video	O
,	O
and	O
audio	O
in	O
iTunes	B-Operating_System
and	O
QuickTime	B-Application
.	O
</s>
<s>
Other	O
software	O
that	O
is	O
still	O
compatible	O
includes	O
Elgato	B-Device
's	O
EyeTV	O
3.5	O
,	O
and	O
VLC	B-Application
media	I-Application
player	I-Application
.	O
</s>
<s>
The	O
remote	O
can	O
also	O
be	O
used	O
to	O
run	O
presentations	O
in	O
Microsoft	B-Application
PowerPoint	I-Application
2008	O
or	O
in	O
OpenOffice.org	B-Application
Impress	I-Application
.	O
</s>
<s>
An	O
iPod	B-Device
placed	O
in	O
a	O
dock	O
featuring	O
an	O
IR	O
sensor	O
can	O
be	O
used	O
with	O
the	O
remote	O
for	O
music	O
and	O
media	O
control	O
.	O
</s>
<s>
The	B-Device
iPod	I-Device
's	O
menus	O
cannot	O
be	O
operated	O
with	O
the	O
remote	O
.	O
</s>
<s>
The	O
Apple	B-Operating_System
Remote	I-Operating_System
can	O
also	O
be	O
used	O
to	O
control	O
the	B-Device
iPod	I-Device
Hi-Fi	O
or	O
third-party	O
devices	O
tailored	O
to	O
it	O
.	O
</s>
<s>
Starting	O
with	O
Boot	B-Application
Camp	I-Application
1.2	O
,	O
the	O
remote	O
has	O
some	O
functionality	O
when	O
a	O
user	O
is	O
running	O
Windows	B-Application
.	O
</s>
<s>
If	O
iTunes	B-Operating_System
is	O
installed	O
on	O
the	O
Windows	B-Application
partition	O
,	O
pressing	O
the	O
Menu	O
button	O
on	O
the	O
remote	O
will	O
start	O
the	O
program	O
.	O
</s>
<s>
The	O
remote	O
's	O
media	O
controls	O
also	O
support	O
Windows	B-Device
Media	I-Device
Player	I-Device
,	O
as	O
well	O
as	O
system	O
volume	O
control	O
.	O
</s>
<s>
Other	O
third-party	O
programs	O
may	O
also	O
utilize	O
the	O
remote	O
's	O
capabilities	O
;	O
media	O
applications	O
such	O
as	O
foobar2000	B-Application
and	O
Media	B-Language
Player	I-Language
Classic	I-Language
allow	O
users	O
to	O
control	O
their	O
functions	O
via	O
the	O
remote	O
.	O
</s>
<s>
Boot	B-Application
Camp	I-Application
5	O
,	O
released	O
on	O
March	O
14	O
,	O
2013	O
,	O
also	O
includes	O
drivers	O
for	O
the	O
remote	B-Protocol
control	I-Protocol
.	O
</s>
<s>
Apple	O
offers	O
a	O
free	O
'	O
Remote	O
 '	O
app	O
for	O
iOS	B-Operating_System
devices	O
(	O
available	O
in	O
the	O
Apple	B-Application
App	I-Application
Store	I-Application
)	O
which	O
allows	O
for	O
wireless	O
control	O
of	O
iTunes	B-Operating_System
on	O
Mac/Windows	O
computers	O
or	O
the	O
Apple	B-Device
TV	I-Device
.	O
</s>
<s>
The	O
Siri	B-Device
Remote	I-Device
was	O
launched	O
with	O
the	O
4th	O
Generation	O
Apple	B-Device
TV	I-Device
in	O
2015	O
.	O
</s>
<s>
It	O
uses	O
both	O
IR	O
and	O
Bluetooth	B-Protocol
to	O
communicate	O
with	O
the	O
Apple	B-Device
TV	I-Device
.	O
</s>
<s>
The	O
remote	O
has	O
a	O
trackpad	O
,	O
dual	O
microphones	O
,	O
5	O
buttons	O
for	O
Menu	O
,	O
Home	O
,	O
Siri	B-Application
and	O
Play/Pause	O
,	O
and	O
a	O
Volume	O
up/down	O
rocker	O
button	O
.	O
</s>
<s>
Additionally	O
it	O
has	O
an	O
accelerometer	O
(	O
IMU	O
)	O
and	O
a	O
gyroscope	O
which	O
allows	O
the	O
remote	O
to	O
be	O
used	O
as	O
a	O
gaming	O
controller	O
for	O
tvOS	B-Operating_System
apps	O
and	O
games	O
.	O
</s>
<s>
The	O
remote	O
(	O
unlike	O
previous	O
generations	O
)	O
uses	O
a	O
built-in	O
rechargeable	O
Lithium	O
Polymer	O
Battery	O
that	O
is	O
charged	O
through	O
a	O
lightning	B-Architecture
port	I-Architecture
at	O
the	O
bottom	O
of	O
the	O
remote	O
.	O
</s>
<s>
In	O
regions	O
where	O
Siri	B-Application
is	O
not	O
supported	O
,	O
the	O
Siri	B-Device
Remote	I-Device
is	O
known	O
as	O
the	O
Apple	B-Device
TV	I-Device
Remote	I-Device
.	O
</s>
<s>
On	O
September	O
12	O
,	O
2017	O
,	O
together	O
with	O
the	O
Apple	B-Device
TV	I-Device
4K	I-Device
,	O
Apple	O
announced	O
an	O
updated	O
Siri	B-Device
Remote	I-Device
,	O
with	O
a	O
raised	O
white	O
border	O
around	O
the	O
menu	O
button	O
and	O
additional	O
motion	O
input	O
for	O
apps	O
.	O
</s>
<s>
Earlier	O
models	O
of	O
the	O
iMac	B-Device
with	O
polycarbonate	O
enclosures	O
featured	O
a	O
magnetic	O
rest	O
for	O
the	O
remote	O
,	O
which	O
was	O
later	O
removed	O
.	O
</s>
<s>
Using	O
the	O
Apple	B-Operating_System
Remote	I-Operating_System
with	O
newer	O
MacBook	B-Device
Air	I-Device
,	O
Retina	O
MacBook	B-Device
,	O
or	O
other	O
Mac	O
models	O
without	O
a	O
built-in	O
IR	O
receiver	O
requires	O
a	O
USB-based	O
infrared	O
receiver	O
and	O
additional	O
software	O
from	O
a	O
third	O
party	O
.	O
</s>
<s>
Using	O
Remote	O
Buddy	O
(	O
from	O
IOSPIRIT	O
GmbH	O
)	O
or	O
mira	O
(	O
from	O
Twisted	O
Melon	O
)	O
,	O
it	O
is	O
possible	O
to	O
connect	O
an	O
external	O
USB	O
receiver	O
such	O
as	O
the	O
Windows	B-Device
Media	I-Device
Center	I-Device
Edition	O
eHome	O
receiver	O
,	O
and	O
use	O
the	O
Apple	B-Operating_System
Remote	I-Operating_System
on	O
these	O
machines	O
with	O
full	O
support	O
for	O
sleep	O
,	O
pairing	O
,	O
low-battery	O
detection	O
and	O
controlling	O
a	O
variety	O
of	O
Apple	O
and	O
third-party	O
software	O
.	O
</s>
<s>
In	O
addition	O
,	O
Remote	O
Buddy	O
is	O
able	O
to	O
emulate	O
events	O
of	O
an	O
Apple	B-Operating_System
Remote	I-Operating_System
on	O
these	O
systems	O
,	O
enabling	O
users	O
to	O
use	O
software	O
written	O
for	O
the	O
Apple	B-Operating_System
Remote	I-Operating_System
in	O
exactly	O
the	O
same	O
way	O
as	O
with	O
Macs	O
that	O
have	O
a	O
built-in	O
infrared	O
receiver	O
.	O
</s>
<s>
For	O
the	O
Apple	O
computers	O
without	O
built-in	O
infrared	O
receiver	O
,	O
there	O
is	O
a	O
miniature	O
USB	O
receiver	O
(	O
USBA	O
or	O
USBC	O
versions	O
)	O
,	O
the	O
SmartGUS	O
,	O
which	O
allows	O
to	O
give	O
back	O
to	O
iMac	B-Device
,	O
MacBook	B-Device
and	O
Mac	B-Device
Pro	I-Device
,	O
the	O
infrared	O
functionality	O
.	O
</s>
<s>
In	O
this	O
case	O
,	O
all	O
compatible	O
software	O
(	O
iTunes	B-Operating_System
,	O
Keynote	B-Protocol
,	O
PowerPoint	B-Application
,	O
OpenOffice	B-Application
Impress	I-Application
,	O
QuickTime	B-Application
Player	I-Application
,	O
iPhoto	B-Operating_System
,	O
VLC	O
,	O
Kodi	O
,	O
Remote	O
Buddy	O
,	O
Mira	O
...	O
)	O
can	O
use	O
the	O
features	O
of	O
the	O
Apple	B-Operating_System
Remote	I-Operating_System
,	O
the	O
same	O
as	O
with	O
the	O
legacy	O
built-in	O
infrared	O
receiver	O
.	O
</s>
<s>
Because	O
many	O
electrical	O
appliances	O
use	O
infrared	O
remote	O
(	O
IR	O
)	O
controls	O
,	O
concurrent	O
use	O
of	O
the	O
Apple	B-Operating_System
Remote	I-Operating_System
with	O
other	O
IR	O
remotes	O
may	O
scramble	O
communications	O
and	O
generate	O
interference	O
,	O
preventing	O
stable	O
use	O
.	O
</s>
<s>
The	O
Apple	B-Operating_System
Remote	I-Operating_System
uses	O
a	O
modified	O
NEC	O
IR	O
protocol	O
which	O
consists	O
of	O
a	O
differential	O
PPM	B-Device
encoding	O
on	O
a	O
1:3	O
duty	O
cycle	O
38	O
kHz	O
950	O
nm	O
infrared	O
carrier	O
.	O
</s>
<s>
While	O
the	O
Apple	B-Operating_System
Remote	I-Operating_System
uses	O
the	O
NEC	O
IR	O
protocol	O
for	O
the	O
timing	O
,	O
the	O
32-bit	O
data	O
package	O
is	O
in	O
a	O
different	O
format	O
.	O
</s>
<s>
To	O
maintain	O
backward	O
compatibility	O
with	O
older	O
devices	O
such	O
as	O
the	B-Device
iPod	I-Device
Hi-Fi	O
,	O
the	O
aluminum	O
Apple	B-Operating_System
Remote	I-Operating_System
does	O
not	O
replace	O
the	O
existing	O
IR	O
code	O
for	O
Play/Pause/Select	O
.	O
</s>
