<s>
The	O
MacBook	B-Device
is	O
a	O
brand	O
of	O
Mac	B-Device
notebook	B-Device
computers	I-Device
designed	O
and	O
marketed	O
by	O
Apple	O
Inc	O
.	O
that	O
use	O
Apple	O
's	O
macOS	B-Application
operating	O
system	O
since	O
2006	O
.	O
</s>
<s>
It	O
replaced	O
the	O
PowerBook	B-Device
and	O
iBook	B-Device
brands	O
during	O
the	O
Mac	B-Device
transition	I-Device
to	I-Device
Intel	I-Device
processors	I-Device
,	O
announced	O
in	O
2005	O
.	O
</s>
<s>
The	O
current	O
lineup	O
consists	O
of	O
the	O
MacBook	B-Device
Air	I-Device
(	O
2008	O
–	O
present	O
)	O
and	O
the	O
MacBook	B-Device
Pro	I-Device
(	O
2006	O
–	O
present	O
)	O
.	O
</s>
<s>
Two	O
different	O
lines	O
simply	O
named	O
"	O
MacBook	B-Device
"	O
existed	O
from	O
2006	B-Operating_System
to	I-Operating_System
2012	I-Operating_System
and	O
2015	B-Device
to	I-Device
2019	I-Device
.	O
</s>
<s>
The	O
MacBook	B-Device
brand	O
was	O
the	O
"	O
world	O
's	O
top-selling	O
line	O
of	O
premium	O
laptops	B-Device
"	O
.	O
</s>
<s>
The	O
MacBook	B-Device
family	I-Device
was	O
initially	O
housed	O
in	O
designs	O
similar	O
to	O
the	O
iBook	B-Device
and	O
PowerBook	B-Device
lines	O
which	O
preceded	O
them	O
,	O
now	O
making	O
use	O
of	O
a	O
unibody	O
aluminum	O
construction	O
first	O
introduced	O
with	O
the	O
MacBook	B-Device
Air	I-Device
.	O
</s>
<s>
This	O
new	O
construction	O
also	O
has	O
a	O
black	O
plastic	O
keyboard	O
that	O
was	O
first	O
used	O
on	O
the	O
MacBook	B-Device
Air	I-Device
,	O
which	O
itself	O
was	O
inspired	O
by	O
the	O
sunken	O
keyboard	O
of	O
the	O
original	O
polycarbonate	O
MacBooks	B-Device
.	O
</s>
<s>
The	O
now	O
standardized	O
keyboard	O
brings	O
congruity	O
to	O
the	O
MacBook	B-Device
line	O
,	O
with	O
black	O
keys	O
on	O
a	O
metallic	O
aluminum	O
body	O
.	O
</s>
<s>
The	O
lids	O
of	O
the	O
MacBook	B-Device
family	I-Device
are	O
held	O
closed	O
by	O
a	O
magnet	O
with	O
no	O
mechanical	O
latch	O
,	O
a	O
design	O
element	O
first	O
introduced	O
with	O
the	O
polycarbonate	O
MacBook	B-Device
.	O
</s>
<s>
The	O
Memory	B-General_Concept
,	O
drives	O
,	O
and	O
batteries	O
were	O
accessible	O
in	O
the	O
old	O
MacBook	B-Device
lineup	O
,	O
though	O
the	O
newest	O
compact	O
lineup	O
solders	O
or	O
glues	O
all	O
such	O
components	O
in	O
place	O
.	O
</s>
<s>
All	O
of	O
the	O
current	O
MacBooks	B-Device
feature	O
backlit	O
keyboards	O
.	O
</s>
<s>
The	O
MacBook	B-Device
was	O
discontinued	O
from	O
February	O
2012	O
until	O
March	O
2015	O
,	O
when	O
a	O
new	O
model	O
featuring	O
an	O
ultraportable	O
design	O
and	O
an	O
all-metal	O
enclosure	O
was	O
introduced	O
.	O
</s>
<s>
It	O
was	O
again	O
discontinued	O
in	O
July	O
2019	O
following	O
a	O
price	O
reduction	O
of	O
the	O
3rd	O
generation	O
MacBook	B-Device
Air	I-Device
and	O
discontinuation	O
of	O
the	O
2nd	O
generation	O
model	O
.	O
</s>
<s>
As	O
part	O
of	O
the	O
Mac	B-Device
transition	I-Device
to	I-Device
Intel	I-Device
processors	I-Device
,	O
Apple	O
released	O
a	O
13-inch	O
laptop	B-Device
simply	O
named	O
"	O
MacBook	B-Device
"	O
,	O
as	O
a	O
successor	O
to	O
the	O
PowerPC-based	O
iBook	B-Device
series	O
of	O
laptops	B-Device
.	O
</s>
<s>
During	O
its	O
existence	O
,	O
it	O
was	O
the	O
most	O
affordable	O
Mac	B-Device
,	O
serving	O
as	O
an	O
entry-level	O
laptop	B-Device
that	O
was	O
less	O
expensive	O
than	O
the	O
rest	O
of	O
the	O
Mac	B-Device
laptop	B-Device
lineup	O
(	O
the	O
MacBook	B-Device
Pro	I-Device
portable	O
workstation	O
,	O
and	O
later	O
the	O
MacBook	B-Device
Air	I-Device
ultra-portable	O
)	O
.	O
</s>
<s>
Successive	O
revisions	O
of	O
the	O
MacBook	B-Device
were	O
sold	O
to	O
consumers	O
between	O
May	O
2006	O
and	O
July	O
2011	O
,	O
by	O
which	O
time	O
it	O
been	O
superseded	O
by	O
the	O
MacBook	B-Device
Air	I-Device
which	O
had	O
a	O
lower	O
entry	O
price	O
.	O
</s>
<s>
Apple	O
continued	O
to	O
sell	O
the	O
MacBook	B-Device
to	O
educational	O
institutions	O
until	O
February	O
2012	O
.	O
</s>
<s>
During	O
its	O
existence	O
,	O
it	O
was	O
the	O
best-selling	O
Mac	B-Device
in	O
Apple	O
's	O
history	O
.	O
</s>
<s>
For	O
five	O
months	O
in	O
2008	O
,	O
it	O
was	O
the	O
best-selling	O
laptop	B-Device
of	O
any	O
brand	O
in	O
US	O
retail	O
stores	O
.	O
</s>
<s>
Collectively	O
,	O
the	O
MacBook	B-Device
brand	O
was	O
the	O
"	O
world	O
's	O
top-selling	O
line	O
of	O
premium	O
laptops.	O
"	O
</s>
<s>
There	O
have	O
been	O
three	O
separate	O
designs	O
of	O
this	O
MacBook	B-Device
.	O
</s>
<s>
The	O
original	O
design	O
used	O
a	O
combination	O
of	O
polycarbonate	O
and	O
fiberglass	O
casing	O
which	O
was	O
modeled	O
after	O
the	O
iBook	B-Device
G4	I-Device
.	O
</s>
<s>
The	O
second	O
design	O
,	O
introduced	O
in	O
October	O
2008	O
alongside	O
the	O
15-inch	O
MacBook	B-Device
Pro	I-Device
,	O
shared	O
the	O
latter	O
's	O
unibody	O
aluminium	O
casing	O
,	O
but	O
lacked	O
a	O
FireWire	B-Protocol
port	I-Protocol
.	O
</s>
<s>
In	O
2015	O
,	O
Apple	O
introduced	O
the	O
12-inch	B-Device
MacBook	I-Device
(	O
also	O
called	O
the	O
Retina	B-Operating_System
MacBook	B-Device
,	O
officially	O
marketed	O
as	O
the	B-Device
new	I-Device
MacBook	I-Device
)	O
,	O
which	O
sat	O
between	O
the	O
MacBook	B-Device
Air	I-Device
and	O
MacBook	B-Device
Pro	I-Device
in	O
Apple	O
's	O
laptop	B-Device
lineup	O
.	O
</s>
<s>
It	O
was	O
more	O
compact	O
than	O
any	O
other	O
notebook	B-Device
in	O
the	O
MacBook	B-Device
family	I-Device
at	O
the	O
time	O
and	O
included	O
a	O
Retina	B-Operating_System
display	I-Operating_System
,	O
fanless	O
design	O
,	O
a	O
Butterfly	O
keyboard	O
with	O
lower	O
key	O
travel	O
.	O
</s>
<s>
It	O
only	O
had	O
a	O
single	O
USB-C	O
port	O
,	O
used	O
for	O
both	O
power	O
and	O
data	O
,	O
as	O
well	O
as	O
a	O
3.5mm	B-Device
headphone	I-Device
jack	I-Device
.	O
</s>
<s>
It	O
was	O
released	O
in	O
2015	O
,	O
revised	O
in	O
2017	O
,	O
and	O
discontinued	O
in	O
July	O
2019	O
,	O
a	O
year	O
after	O
the	O
release	O
of	O
the	O
MacBook	B-Device
Air	I-Device
with	O
Retina	B-Operating_System
display	I-Operating_System
.	O
</s>
<s>
The	O
MacBook	B-Device
Air	I-Device
is	O
Apple	O
's	O
least	O
expensive	O
notebook	B-Device
computer	I-Device
.	O
</s>
<s>
While	O
the	O
1st	O
generation	O
was	O
released	O
as	O
a	O
premium	O
ultraportable	O
positioned	O
above	O
the	O
2006	O
–	O
2012	O
MacBook	B-Device
,	O
lowered	O
prices	O
on	O
subsequent	O
iterations	O
and	O
the	O
discontinuation	O
of	O
that	O
MacBook	B-Device
has	O
made	O
it	O
serve	O
as	O
the	O
entry-level	O
Mac	B-Device
portable	O
.	O
</s>
<s>
The	O
2010	O
to	O
2017	O
base	O
model	O
came	O
with	O
a	O
13-inch	O
screen	O
and	O
was	O
Apple	O
's	O
thinnest	O
notebook	B-Device
computer	I-Device
until	O
the	O
introduction	O
of	O
the	O
MacBook	B-Device
in	O
March	O
2015	O
.	O
</s>
<s>
This	O
MacBook	B-Device
Air	I-Device
model	O
features	O
two	O
USB	O
Type-A	O
3.0	O
ports	O
and	O
a	O
Thunderbolt	B-Protocol
2	O
port	O
,	O
as	O
well	O
as	O
an	O
SDXC	B-Device
card	O
slot	O
(	O
only	O
on	O
the	O
13inch	O
model	O
)	O
.	O
</s>
<s>
This	O
model	O
of	O
MacBook	B-Device
Air	I-Device
did	O
not	O
have	O
a	O
Retina	B-Operating_System
Display	I-Operating_System
.	O
</s>
<s>
A	O
MacBook	B-Device
Air	I-Device
model	O
with	O
an	O
11-inch	O
screen	O
was	O
available	O
from	O
October	O
2010	O
to	O
October	O
2016	O
.	O
</s>
<s>
In	O
2017	O
,	O
the	O
MacBook	B-Device
Air	I-Device
received	O
a	O
small	O
refresh	O
,	O
with	O
the	O
processor	B-Architecture
speed	O
increased	O
to	O
1.8GHz	O
.	O
</s>
<s>
On	O
October	O
30	O
,	O
2018	O
,	O
the	O
MacBook	B-Device
Air	I-Device
underwent	O
a	O
major	O
design	O
change	O
,	O
dropping	O
the	O
USB	O
Type-A	O
ports	O
,	O
MagSafe	B-Application
,	O
and	O
the	O
SD	B-Device
card	I-Device
slot	O
in	O
favor	O
of	O
two	O
USB-C/Thunderbolt	O
3	O
ports	O
and	O
a	O
headphone	B-Device
jack	I-Device
.	O
</s>
<s>
It	O
was	O
updated	O
with	O
a	O
Retina	B-Operating_System
display	I-Operating_System
and	O
Intel	O
Y-series	O
Amber	O
Lake	O
i5	O
CPUs	O
,	O
as	O
well	O
as	O
a	O
Force	O
Touch	O
trackpad	O
,	O
a	O
third-generation	O
butterfly	O
mechanism	O
keyboard	O
,	O
and	O
the	O
Touch	O
ID	O
sensor	O
found	O
in	O
the	O
fourth-generation	O
MacBook	B-Device
Pro	I-Device
,	O
but	O
without	O
the	O
Touch	O
Bar	O
.	O
</s>
<s>
The	O
base	O
price	O
was	O
also	O
raised	O
,	O
although	O
the	O
base	O
configuration	O
of	O
the	O
2017	O
model	O
was	O
retained	O
until	O
July	O
9	O
,	O
2019	O
,	O
when	O
it	O
was	O
discontinued	O
along	O
with	O
the	O
Retina	B-Operating_System
MacBook	B-Device
.	O
</s>
<s>
On	O
November	O
10	O
,	O
2020	O
,	O
Apple	O
announced	O
that	O
the	O
MacBook	B-Device
Air	I-Device
would	O
use	O
the	O
new	O
Apple	B-Device
M1	I-Device
system	B-Architecture
on	I-Architecture
a	I-Architecture
chip	I-Architecture
.	O
</s>
<s>
The	O
M1	B-Device
Air	O
does	O
not	O
have	O
a	O
fan	O
,	O
ensuring	O
silent	O
operation	O
,	O
but	O
limiting	O
the	O
M1	B-Device
chip	I-Device
speed	O
in	O
sustained	O
operations	O
.	O
</s>
<s>
Performance	O
was	O
claimed	O
to	O
be	O
higher	O
than	O
most	O
current	O
Intel	O
laptops	B-Device
.	O
</s>
<s>
On	O
June	O
6	O
,	O
2022	O
,	O
at	O
WWDC	O
2022	O
,	O
Apple	O
announced	O
a	O
new	O
MacBook	B-Device
Air	I-Device
based	O
on	O
the	O
Apple	B-Device
M2	I-Device
system	B-Architecture
on	I-Architecture
a	I-Architecture
chip	I-Architecture
.	O
</s>
<s>
It	O
incorporates	O
several	O
design	O
elements	O
from	O
the	O
fifth-generation	O
MacBook	B-Device
Pro	I-Device
models	O
,	O
such	O
as	O
a	O
flat	O
,	O
slab-shaped	O
design	O
,	O
full-sized	O
function	B-Application
keys	I-Application
,	O
and	O
a	O
Liquid	B-Operating_System
Retina	I-Operating_System
display	O
with	O
rounded	O
corners	O
and	O
a	O
notch	O
for	O
a	O
1080p	O
webcam	B-Protocol
,	O
but	O
retains	O
the	O
previous	O
generation	O
's	O
fanless	O
design	O
.	O
</s>
<s>
It	O
includes	O
two	O
combination	O
Thunderbolt	O
3/USB	O
4	O
ports	O
and	O
adds	O
MagSafe	B-Application
charging	O
.	O
</s>
<s>
The	O
MacBook	B-Device
Pro	I-Device
is	O
Apple	O
's	O
higher-end	O
notebook	B-Device
available	O
in	O
13-inch	O
,	O
15-inch	O
,	O
and	O
16-inch	O
configurations	O
.	O
</s>
<s>
The	O
current	O
generation	O
13-inch	O
MacBook	B-Device
Pro	I-Device
was	O
introduced	O
in	O
October	O
2018	O
.	O
</s>
<s>
It	O
features	O
a	O
touch-sensitive	O
OLED	O
display	O
strip	O
located	O
in	O
place	O
of	O
the	O
function	B-Application
keys	I-Application
,	O
a	O
Touch	O
ID	O
sensor	O
integrated	O
with	O
the	O
power	O
button	O
,	O
and	O
four	O
USB-C	O
ports	O
that	O
also	O
serve	O
as	O
Thunderbolt	B-Protocol
3	I-Protocol
ports	O
.	O
</s>
<s>
The	O
13-inch	O
model	O
was	O
also	O
available	O
in	O
a	O
less	O
expensive	O
configuration	O
with	O
conventional	O
function	B-Application
keys	I-Application
and	O
only	O
two	O
USB-C/Thunderbolt	O
3	O
ports	O
,	O
but	O
since	O
July	O
2019	O
,	O
the	O
base	O
MacBook	B-Device
Pro	I-Device
model	O
has	O
the	O
Touch	O
Bar	O
as	O
well	O
as	O
quad-core	O
processors	O
,	O
similar	O
to	O
the	O
higher-end	O
models	O
,	O
although	O
it	O
still	O
has	O
only	O
two	O
USB-C	O
/	O
Thunderbolt	B-Protocol
3	I-Protocol
ports	O
.	O
</s>
<s>
The	O
May	O
4	O
,	O
2020	O
refresh	O
adopts	O
many	O
of	O
the	O
upgrades	O
seen	O
in	O
the	O
16	O
"	O
2019	O
MacBook	B-Device
Pro	I-Device
,	O
including	O
the	O
scissor	O
mechanism	O
keyboard	O
(	O
"	O
Magic	O
Keyboard	O
"	O
)	O
and	O
a	O
physical	O
Escape	O
button	O
.	O
</s>
<s>
On	O
November	O
13	O
,	O
2019	O
,	O
Apple	O
released	O
the	O
16-inch	O
MacBook	B-Device
Pro	I-Device
,	O
replacing	O
the	O
15-inch	O
model	O
of	O
the	O
previous	O
generation	O
,	O
and	O
replacing	O
the	O
butterfly	O
keyboard	O
with	O
a	O
scissor	O
mechanism	O
keyboard	O
(	O
dubbed	O
the	O
Magic	O
Keyboard	O
by	O
Apple	O
)	O
,	O
reverting	O
to	O
the	O
old	O
"	O
inverted-T	O
"	O
arrow	O
key	O
layout	O
,	O
replacing	O
the	O
virtual	O
Escape	B-Device
key	I-Device
on	O
the	O
Touch	O
Bar	O
with	O
a	O
physical	O
key	O
,	O
and	O
replacing	O
the	O
AMD	O
Polaris	O
and	O
Vega	B-Device
graphics	B-Architecture
from	O
the	O
15-inch	O
model	O
with	O
options	O
from	O
AMD	O
's	O
Navi	B-Device
graphics	B-Architecture
architecture	O
,	O
as	O
well	O
as	O
reengineering	O
the	O
speakers	O
,	O
microphone	O
array	O
,	O
and	O
the	O
thermal	O
system	O
compared	O
to	O
the	O
15-inch	O
;	O
the	O
latter	O
had	O
thermal	O
limitations	O
in	O
the	O
15-inch	O
model	O
due	O
to	O
its	O
design	O
.	O
</s>
<s>
In	O
addition	O
,	O
the	O
16-inch	O
is	O
available	O
with	O
up	O
to	O
64	O
GB	O
of	O
DDR4	O
2667MHz	O
RAM	O
and	O
up	O
to	O
8	O
TB	O
of	O
SSD	O
storage	B-General_Concept
.	O
</s>
<s>
On	O
November	O
10	O
,	O
2020	O
,	O
Apple	O
announced	O
a	O
new	O
model	O
of	O
the	O
MacBook	B-Device
Pro	I-Device
incorporating	O
the	O
new	O
Apple	B-Device
M1	I-Device
system	B-Architecture
on	I-Architecture
a	I-Architecture
chip	I-Architecture
.	O
</s>
<s>
It	O
has	O
a	O
fan	O
,	O
allowing	O
sustained	O
operation	O
of	O
the	O
M1	B-Device
chip	I-Device
at	O
its	O
full	O
performance	O
level	O
,	O
which	O
is	O
claimed	O
to	O
match	O
or	O
exceed	O
that	O
of	O
Intel	O
versions	O
.	O
</s>
<s>
Unlike	O
Intel	O
Pro	O
models	O
,	O
the	O
M1	B-Device
version	O
only	O
comes	O
with	O
a	O
13-inch	O
screen	O
,	O
has	O
only	O
two	O
Thunderbolt	B-Protocol
ports	I-Protocol
and	O
has	O
a	O
maximum	O
of	O
16	O
GB	O
random	O
access	O
memory	B-General_Concept
(	O
RAM	O
)	O
.	O
</s>
<s>
On	O
October	O
18	O
,	O
2021	O
,	O
Apple	O
announced	O
new	O
14-inch	O
and	O
16-inch	O
MacBook	B-Device
Pro	I-Device
models	O
during	O
an	O
online	O
event	O
.	O
</s>
<s>
They	O
are	O
based	O
on	O
the	O
M1	B-Device
Pro	I-Device
and	O
M1	B-Device
Max	I-Device
,	O
Apple	O
's	O
first	O
professional-focused	O
ARM-based	B-Architecture
systems	B-Architecture
on	I-Architecture
a	I-Architecture
chip	I-Architecture
.	O
</s>
<s>
This	O
release	O
addressed	O
many	O
criticisms	O
of	O
the	O
previous	O
generation	O
by	O
reintroducing	O
hard	O
function	B-Application
keys	I-Application
in	O
place	O
of	O
the	O
Touch	O
Bar	O
,	O
an	O
HDMI	B-Protocol
2.0	O
port	O
,	O
a	O
SDXC	B-Device
reader	O
and	O
MagSafe	B-Application
charging	O
.	O
</s>
<s>
Other	O
additions	O
include	O
a	O
Liquid	B-Operating_System
Retina	I-Operating_System
XDR	O
display	O
with	O
thinner	O
bezels	O
and	O
an	O
iPhone-like	O
notch	O
,	O
ProMotion	O
supporting	O
120Hz	O
variable	O
refresh	O
rate	O
,	O
a	O
1080p	O
webcam	B-Protocol
,	O
Wi-Fi	O
6	O
,	O
3	O
Thunderbolt	B-Protocol
4	I-Protocol
ports	O
,	O
a	O
six-speaker	O
sound	O
system	O
supporting	O
Dolby	O
Atmos	O
,	O
and	O
support	O
for	O
a	O
third	O
6K	O
display	O
on	O
M1	B-Device
Max	I-Device
models	O
.	O
</s>
<s>
The	O
16-inch	O
version	O
is	O
bundled	O
with	O
a	O
140W	O
GaN	O
power	O
supply	O
that	O
supports	O
USB-C	O
Power	O
Delivery	O
3.1	O
,	O
though	O
only	O
MagSafe	B-Application
supports	O
full-speed	O
charging	O
as	O
the	O
machine	O
's	O
USB-C	O
ports	O
are	O
limited	O
to	O
100W	O
.	O
</s>
<s>
On	O
June	O
6	O
,	O
2022	O
,	O
Apple	O
announced	O
an	O
updated	O
13-inch	O
MacBook	B-Device
Pro	I-Device
based	O
on	O
the	O
Apple	B-Device
M2	I-Device
system	B-Architecture
on	I-Architecture
a	I-Architecture
chip	I-Architecture
.	O
</s>
<s>
It	O
is	O
housed	O
in	O
the	O
same	O
chassis	O
as	O
the	O
previous	O
M1	B-Device
MacBook	B-Device
Pro	I-Device
.	O
</s>
<s>
On	O
January	O
17	O
,	O
2023	O
,	O
Apple	O
announced	O
updated	O
14-inch	O
and	O
16-inch	O
MacBook	B-Device
Pro	I-Device
models	O
based	O
on	O
the	O
M2	B-Device
Pro	I-Device
and	I-Device
M2	I-Device
Max	I-Device
chips	O
.	O
</s>
<s>
The	O
updated	O
models	O
also	O
include	O
Bluetooth	O
5.3	O
and	O
Wi-Fi	O
6E	O
connectivity	O
,	O
HDMI	B-Protocol
2.1	O
,	O
longer	O
battery	O
life	O
,	O
and	O
up	O
to	O
96GB	O
of	O
memory	B-General_Concept
with	O
M2	O
Max	O
models	O
.	O
</s>
