<s>
The	O
iPad	B-Operating_System
2	I-Operating_System
is	O
a	B-General_Concept
tablet	B-Device
designed	O
,	O
developed	O
and	O
marketed	O
by	O
Apple	O
Inc	O
.	O
</s>
<s>
Compared	O
to	O
the	B-Operating_System
first	I-Operating_System
iPad	I-Operating_System
,	O
as	O
the	O
second	O
model	O
in	O
the	O
iPad	B-Operating_System
line	O
,	O
it	O
gained	O
a	B-General_Concept
faster	O
dual	B-Architecture
core	I-Architecture
A5	O
processor	O
,	O
a	B-General_Concept
lighter	O
build	O
structure	O
,	O
and	O
was	O
the	B-Operating_System
first	I-Operating_System
iPad	I-Operating_System
to	O
feature	O
VGA	B-Protocol
front-facing	O
and	O
720p	O
rear-facing	O
cameras	O
designed	O
for	O
FaceTime	B-Operating_System
video	I-Operating_System
calling	O
.	O
</s>
<s>
The	O
device	B-Application
was	O
available	O
initially	O
with	O
three	O
storage	O
sizes	O
–	O
16	O
,	O
32	O
and	O
64	O
GB	O
–	O
and	O
two	O
varying	O
connectivity	O
options	O
–	O
Wi-Fi	O
only	O
or	O
Wi-Fi	O
and	O
cellular	O
.	O
</s>
<s>
Each	O
variation	O
of	O
the	O
device	B-Application
is	O
available	O
with	O
either	O
a	B-General_Concept
black	O
or	O
white	O
front	O
glass	O
panel	O
.	O
</s>
<s>
However	O
,	O
upon	O
the	O
release	O
of	O
the	O
3rd	B-Operating_System
generation	I-Operating_System
iPad	I-Operating_System
in	O
March	O
2012	O
,	O
only	O
the	O
16	O
GB	O
variation	O
remained	O
available	O
.	O
</s>
<s>
The	O
device	B-Application
received	O
generally	O
positive	O
reception	O
from	O
various	O
blogs	O
and	O
publications	O
.	O
</s>
<s>
Although	O
it	O
was	O
praised	O
for	O
its	O
hardware	O
improvement	O
,	O
such	O
as	O
the	O
new	O
Apple	O
A5	O
chip	O
,	O
the	O
software	O
restriction	O
on	O
the	O
iPad	B-Operating_System
2	I-Operating_System
and	O
iOS	B-Application
in	O
general	O
drew	O
criticism	O
from	O
various	O
technology	O
commentators	O
.	O
</s>
<s>
The	O
device	B-Application
sold	O
well	O
in	O
its	O
first	O
month	O
of	O
sales	O
with	O
2.4	O
–	O
2.6	O
million	O
units	O
sold	O
and	O
11.12	O
million	O
units	O
were	O
sold	O
in	O
the	O
third	O
quarter	O
of	O
2011	O
.	O
</s>
<s>
A	B-General_Concept
popular	O
product	O
,	O
with	O
a	B-General_Concept
lower	O
screen	O
resolution	O
and	O
performance	O
than	O
the	O
two	O
Retina	B-Operating_System
models	O
that	O
followed	O
it	O
but	O
a	B-General_Concept
lighter	O
build	O
and	O
longer	O
battery	O
life	O
,	O
it	O
remained	O
in	O
the	O
Apple	O
line-up	O
as	O
an	O
entry-level	O
iPad	B-Operating_System
model	O
for	O
three	O
years	O
until	O
March	O
2014	O
,	O
latterly	O
with	O
a	B-General_Concept
silent	O
upgrade	O
to	O
a	B-General_Concept
die-shrunk	O
version	O
of	O
the	O
A5	O
processor	O
.	O
</s>
<s>
Its	O
basic	O
design	O
formed	O
the	O
core	O
of	O
the	B-Operating_System
first	I-Operating_System
iPad	I-Operating_System
mini	O
,	O
which	O
had	O
the	O
same	O
screen	O
pixel	B-Algorithm
count	O
and	O
similar	O
features	O
at	O
a	B-General_Concept
smaller	O
size	O
.	O
</s>
<s>
Originally	O
shipped	O
with	O
iOS	B-Operating_System
4.3	I-Operating_System
,	O
with	O
the	O
release	O
of	O
iOS	B-Operating_System
9	I-Operating_System
,	O
the	O
iPad	B-Operating_System
2	I-Operating_System
became	O
the	O
only	O
device	B-Application
powered	O
by	O
the	O
Apple	O
A5	O
to	O
have	O
received	O
six	O
major	O
versions	O
of	O
iOS	B-Application
.	O
</s>
<s>
Apple	O
sent	O
invitations	O
to	O
journalists	O
on	O
February	O
23	O
,	O
2011	O
,	O
for	O
a	B-General_Concept
media	O
event	O
on	O
March	O
2	O
.	O
</s>
<s>
On	O
March	O
2	O
,	O
2011	O
,	O
CEO	O
Steve	O
Jobs	O
unveiled	O
the	O
device	B-Application
at	O
the	O
Yerba	O
Buena	O
Center	O
for	O
the	O
Arts	O
,	O
despite	O
being	O
on	O
medical	O
leave	O
.	O
</s>
<s>
Upon	O
the	O
announcement	O
of	O
the	O
iPad	B-Operating_System
2	I-Operating_System
,	O
the	O
original	B-Operating_System
iPad	I-Operating_System
was	O
discontinued	O
from	O
sales	O
online	O
and	O
at	O
Apple	O
authorized	O
retail	O
stores	O
.	O
</s>
<s>
Apple	O
began	O
selling	O
the	O
iPad	B-Operating_System
2	I-Operating_System
on	O
its	O
website	O
on	O
March	O
11	O
,	O
and	O
in	O
its	O
U.S.	O
retail	O
stores	O
at	O
5pm	O
local	O
time	O
on	O
that	O
date	O
.	O
</s>
<s>
The	O
iPad	B-Operating_System
2	I-Operating_System
was	O
released	O
internationally	O
in	O
25	O
other	O
countries	O
on	O
March	O
25	O
,	O
2011	O
.	O
</s>
<s>
The	O
countries	O
included	O
Australia	O
,	O
Austria	O
,	O
Belgium	O
,	O
Canada	O
,	O
Czech	O
Republic	O
,	O
Denmark	O
,	O
Finland	O
,	O
France	O
,	O
Germany	O
,	O
Greece	O
,	O
Iceland	O
,	O
Italy	O
,	O
Ireland	O
,	O
Hungary	O
,	O
Luxembourg	O
,	O
Mexico	O
,	O
Netherlands	O
,	O
New	O
Zealand	O
,	O
Norway	O
,	O
Poland	O
,	O
Portugal	O
,	O
Spain	O
,	O
Sweden	O
,	O
Switzerland	B-Protocol
,	O
and	O
the	O
United	O
Kingdom	O
.	O
</s>
<s>
The	O
iPads	B-Operating_System
were	O
delayed	O
due	O
to	O
the	O
NAND	O
flash	B-Device
storage	I-Device
chip	O
used	O
in	O
the	O
iPads	B-Operating_System
being	O
created	O
by	O
Toshiba	O
,	O
which	O
was	O
affected	O
by	O
the	O
earthquake	O
and	O
tsunami	O
thus	O
resulting	O
in	O
the	O
suspension	O
of	O
operations	O
for	O
an	O
indefinite	O
period	O
of	O
time	O
.	O
</s>
<s>
The	O
iPad	B-Operating_System
2	I-Operating_System
was	O
later	O
released	O
in	O
Hong	O
Kong	O
,	O
India	O
,	O
South	O
Korea	O
,	O
Singapore	O
,	O
Philippines	O
,	O
Malaysia	O
and	O
other	O
countries	O
including	O
Japan	O
on	O
April	O
29	O
,	O
2011	O
.	O
</s>
<s>
The	O
32	O
and	O
64GB	O
models	O
were	O
discontinued	O
on	O
March	O
7	O
,	O
2012	O
,	O
upon	O
the	O
introduction	O
of	O
the	O
third	B-Operating_System
generation	I-Operating_System
iPad	I-Operating_System
.	O
</s>
<s>
In	O
late	O
March	O
2011	O
,	O
the	O
iPad	B-Operating_System
2	I-Operating_System
was	O
released	O
alongside	O
iOS	B-Operating_System
4.3	I-Operating_System
,	O
which	O
primarily	O
introduced	O
Airplay	O
Mirroring	O
and	O
Home	O
Sharing	O
among	O
other	O
features	O
.	O
</s>
<s>
On	O
October	O
12	O
,	O
2011	O
,	O
upon	O
the	O
release	O
of	O
the	O
iPhone	B-Operating_System
4S	I-Operating_System
,	O
the	O
iPad	B-Operating_System
was	O
upgradable	O
to	O
the	O
iOS	B-Operating_System
5	I-Operating_System
firmware	O
update	O
which	O
brought	O
over	O
200	O
new	O
user	O
features	O
to	O
iOS	B-Application
compatible	O
devices	O
including	O
Notification	O
Center	O
,	O
iMessage	O
,	O
Reminders	O
,	O
and	O
an	O
updated	O
notifications	O
system	O
,	O
using	O
a	B-General_Concept
new	O
"	O
banner	O
"	O
style	O
instead	O
of	O
the	O
previously	O
used	O
pop-up	O
"	O
alert	O
"	O
style	O
.	O
</s>
<s>
The	O
iPad	B-Operating_System
2	I-Operating_System
comes	O
with	O
several	O
applications	O
by	O
default	O
,	O
including	O
Safari	B-Application
,	O
Mail	O
,	O
Photos	O
,	O
Video	O
,	O
Music	O
,	O
iTunes	O
(	O
store	O
)	O
,	O
Maps	O
,	O
Notes	O
,	O
Calendar	O
,	O
Photo	B-Application
Booth	I-Application
,	O
and	O
Contacts	O
.	O
</s>
<s>
The	O
App	B-Application
Store	I-Application
is	O
also	O
available	O
as	O
a	B-General_Concept
default	O
application	O
,	O
it	O
enables	O
users	O
to	O
download	O
from	O
a	B-General_Concept
database	O
of	O
800,000	O
applications	O
,	O
the	O
price	O
of	O
these	O
applications	O
is	O
set	O
by	O
the	O
developers	O
.	O
</s>
<s>
Like	O
all	O
iOS	B-Operating_System
devices	I-Operating_System
,	O
the	O
iPad	B-Operating_System
2	I-Operating_System
can	O
sync	O
music	O
,	O
videos	O
,	O
apps	O
and	O
photos	O
with	O
a	B-General_Concept
Mac	O
or	O
PC	O
using	O
iTunes	O
,	O
although	O
when	O
using	O
iOS	B-Operating_System
5	I-Operating_System
and	O
later	O
,	O
the	O
user	O
does	O
not	O
have	O
to	O
connect	O
the	O
iPad	B-Operating_System
to	O
the	O
computer	O
.	O
</s>
<s>
iCloud	B-Application
also	O
allows	O
users	O
to	O
backup	O
and	O
sync	O
their	O
data	O
with	O
other	O
compatible	O
iOS	B-Operating_System
devices	I-Operating_System
via	O
the	O
internet	O
.	O
</s>
<s>
Game	B-Operating_System
Center	I-Operating_System
is	O
available	O
as	O
a	B-General_Concept
native	O
social	O
gaming	O
platform	O
on	O
iOS	B-Application
,	O
games	O
downloaded	O
via	O
the	O
App	B-Application
Store	I-Application
that	O
have	O
this	O
feature	O
enabled	O
are	O
able	O
to	O
integrate	O
their	O
achievement	O
points	O
,	O
high-scores	O
and	O
bonus	O
system	O
across	O
all	O
iOS	B-Operating_System
devices	I-Operating_System
into	O
a	B-General_Concept
single	O
accumulative	O
points	O
and	O
social	O
platform	O
.	O
</s>
<s>
Although	O
the	O
tablet	B-Device
is	O
not	O
designed	O
to	O
make	O
phone	O
calls	O
over	O
a	B-General_Concept
cellular	O
network	O
,	O
a	B-General_Concept
user	O
can	O
use	O
a	B-General_Concept
wired	O
headset	O
or	O
the	O
built-in	O
speaker	O
and	O
microphone	B-Application
and	O
place	O
phone	O
calls	O
over	O
Wi-Fi	O
or	O
cellular	O
using	O
a	B-General_Concept
VoIP	B-Application
application	O
.	O
</s>
<s>
The	O
iPad	B-Operating_System
2	I-Operating_System
also	O
adds	O
the	O
ability	O
to	O
run	O
GarageBand	B-Application
,	O
iMovie	B-Operating_System
,	O
and	O
the	O
iWork	O
apps	O
Pages	B-Application
,	O
Keynote	B-Protocol
,	O
and	O
Numbers	B-Operating_System
.	O
</s>
<s>
These	O
applications	O
do	O
not	O
come	O
with	O
the	O
iPad	B-Operating_System
but	O
are	O
instead	O
official	O
applications	O
from	O
Apple	O
sold	O
within	O
the	O
App	B-Application
Store	I-Application
.	O
</s>
<s>
On	O
March	O
7	O
,	O
2012	O
,	O
after	O
the	O
unveiling	O
of	O
the	O
third	B-Operating_System
generation	I-Operating_System
iPad	I-Operating_System
,	O
the	O
firmware	O
of	O
the	O
iPad	B-Operating_System
2	I-Operating_System
was	O
upgradable	O
to	O
iOS	O
5.1	O
.	O
</s>
<s>
Scott	O
Rohde	O
,	O
a	B-General_Concept
senior	O
Sony	O
executive	O
described	O
the	O
iPad	B-Operating_System
as	O
"	O
a	B-General_Concept
game	O
console	O
disguised	O
as	O
a	B-General_Concept
device	B-Application
that	O
can	O
be	O
appropriated	O
in	O
the	O
business	O
workplace.	O
"	O
</s>
<s>
On	O
September	O
19	O
,	O
2012	O
,	O
almost	O
a	B-General_Concept
week	O
after	O
the	O
announcement	O
of	O
the	O
iPhone	B-Operating_System
5	I-Operating_System
,	O
iOS	B-Application
6	O
was	O
released	O
for	O
numerous	O
iOS	B-Operating_System
devices	I-Operating_System
,	O
including	O
the	O
iPad	B-Operating_System
2	I-Operating_System
and	O
iPhone	B-Operating_System
4S	I-Operating_System
.	O
</s>
<s>
However	O
,	O
on	O
iOS	B-Application
6	O
,	O
not	O
all	O
features	O
are	O
available	O
on	O
the	O
iPad	B-Operating_System
2	I-Operating_System
.	O
</s>
<s>
The	O
software	O
upgrade	O
was	O
downloadable	O
as	O
an	O
over	O
the	O
air	O
(	O
OTA	O
)	O
update	O
package	O
and	O
contains	O
two	O
hundred	O
new	O
features	O
,	O
including	O
a	B-General_Concept
mapping	O
software	O
designed	O
by	O
Apple	O
dubbed	O
Apple	B-Application
Maps	I-Application
,	O
a	B-General_Concept
"	O
Clock	O
"	O
app	O
,	O
which	O
features	O
a	B-General_Concept
timer	O
,	O
stopwatch	O
and	O
alarm	O
,	O
and	O
Facebook	B-Application
integration	O
among	O
other	O
new	O
features	O
and	O
tweaks	O
.	O
</s>
<s>
The	O
iPad	B-Operating_System
2	I-Operating_System
is	O
compatible	O
with	O
iOS	B-Operating_System
7	I-Operating_System
,	O
which	O
was	O
released	O
on	O
September	O
18	O
,	O
2013	O
.	O
</s>
<s>
For	O
example	O
,	O
like	O
the	O
iPhone	B-Operating_System
4	I-Operating_System
,	O
the	O
Notification	O
Center	O
and	O
the	O
Control	O
Center	O
use	O
the	O
transparent	O
style	O
instead	O
of	O
the	O
translucent	O
style	O
in	O
later	O
iOS	B-Application
models	O
.	O
</s>
<s>
Also	O
,	O
AirDrop	B-Operating_System
,	O
which	O
was	O
first	O
released	O
in	O
iOS	B-Operating_System
7	I-Operating_System
,	O
was	O
only	O
supported	O
by	O
the	O
iPad	B-Operating_System
4	O
or	O
later	O
.	O
</s>
<s>
The	O
iPad	B-Operating_System
2	I-Operating_System
can	O
run	O
iOS	B-Operating_System
8	I-Operating_System
,	O
which	O
was	O
released	O
on	O
September	O
17	O
,	O
2014	O
,	O
making	O
it	O
the	O
first	O
iOS	B-Operating_System
device	I-Operating_System
to	O
run	O
five	O
major	O
versions	O
of	O
iOS	B-Application
(	O
including	O
iOS	B-Operating_System
4	I-Operating_System
,	O
5	O
,	O
6	O
,	O
7	O
,	O
and	O
8	O
)	O
.	O
</s>
<s>
While	O
the	O
OS	O
runs	O
on	O
the	O
device	B-Application
,	O
most	O
of	O
its	O
new	O
features	O
do	O
not	O
work	O
because	O
of	O
relatively	O
aged	O
hardware	O
and	O
therefore	O
,	O
its	O
performance	O
is	O
limited	O
.	O
</s>
<s>
Many	O
users	O
speculated	O
that	O
the	O
iPad	B-Operating_System
2	I-Operating_System
was	O
going	O
to	O
be	O
dropped	O
from	O
updating	O
to	O
iOS	B-Operating_System
8	I-Operating_System
along	O
with	O
the	O
iPhone	B-Operating_System
4	I-Operating_System
,	O
the	O
same	O
process	O
that	O
happened	O
with	O
the	O
iPhone	B-Operating_System
3GS	O
and	O
the	B-Device
iPod	I-Device
Touch	O
(	O
fourth	O
generation	O
)	O
and	O
earlier	O
models	O
,	O
considering	O
that	O
the	O
model	O
was	O
more	O
than	O
3	O
years	O
old	O
.	O
</s>
<s>
It	O
was	O
confirmed	O
on	O
June	O
8	O
,	O
2015	O
,	O
at	O
Apple	O
's	O
WWDC	O
that	O
the	O
iPad	B-Operating_System
2	I-Operating_System
would	O
run	O
iOS	B-Operating_System
9	I-Operating_System
,	O
making	O
it	O
the	O
first	O
iOS	B-Operating_System
device	I-Operating_System
to	O
run	O
six	O
major	O
versions	O
of	O
iOS	B-Application
.	O
</s>
<s>
As	O
with	O
previous	O
releases	O
,	O
though	O
,	O
many	O
headline	O
features	O
were	O
unavailable	O
on	O
the	O
iPad	B-Operating_System
2	I-Operating_System
,	O
including	O
predictive	O
Siri	B-Application
,	O
translucency	O
effects	O
,	O
split-view	O
,	O
slide-over	O
and	O
picture-in-picture	O
multitasking	B-Operating_System
and	O
the	O
Health	O
app	O
.	O
</s>
<s>
iOS	B-Operating_System
9	I-Operating_System
is	O
said	O
to	O
feature	O
performance	O
improvements	O
that	O
may	O
help	O
the	O
aging	O
device	B-Application
function	O
more	O
smoothly	O
,	O
and	O
initial	O
tests	O
suggest	O
that	O
it	O
did	O
not	O
significantly	O
impact	O
available	O
space	O
.	O
</s>
<s>
Other	O
A5-based	O
devices	O
will	O
also	O
run	O
iOS	B-Operating_System
9	I-Operating_System
including	O
the	O
iPhone	B-Operating_System
4S	I-Operating_System
(	O
five	O
major	O
iOS	B-Application
versions	O
)	O
,	O
the	O
iPad	B-Device
Mini	I-Device
(	O
four	O
major	O
iOS	B-Application
versions	O
)	O
and	O
iPod	B-Operating_System
Touch	I-Operating_System
5G	I-Operating_System
(	O
four	O
major	O
iOS	B-Application
versions	O
)	O
.	O
</s>
<s>
On	O
June	O
13	O
,	O
2016	O
,	O
with	O
the	O
announcement	O
of	O
iOS	B-Operating_System
10	I-Operating_System
,	O
Apple	O
dropped	O
support	O
for	O
the	O
iPad	B-Operating_System
2	I-Operating_System
because	O
of	O
its	O
hardware	O
and	O
performance	O
issues	O
.	O
</s>
<s>
The	O
same	O
goes	O
with	O
its	B-Operating_System
successor	I-Operating_System
and	O
the	O
iPad	B-Device
Mini	I-Device
(	O
1st	O
generation	O
)	O
,	O
making	O
iOS	O
9.3.5	O
(	O
Wi-Fi	O
)	O
or	O
iOS	O
9.3.6	O
(	O
Wi-Fi	O
+	O
Cellular	O
)	O
the	O
final	O
version	O
that	O
will	O
run	O
on	O
the	O
device	B-Application
.	O
</s>
<s>
The	O
iPad	B-Operating_System
2	I-Operating_System
is	O
one	O
of	O
many	O
computers	O
,	O
tablets	B-Device
,	O
and	O
mobile	B-Application
devices	I-Application
susceptible	O
to	O
the	O
"	O
Broadpwn	O
"	O
exploit	O
,	O
which	O
was	O
publicized	O
in	O
July	O
2017	O
.	O
</s>
<s>
Apple	O
quickly	O
released	O
an	O
update	O
for	O
iOS	B-Operating_System
10	I-Operating_System
to	O
fix	O
the	O
problem	O
,	O
but	O
a	B-General_Concept
fix	O
was	O
never	O
released	O
for	O
iOS	B-Operating_System
9	I-Operating_System
or	O
earlier	O
versions	O
of	O
iOS	B-Application
.	O
</s>
<s>
As	O
a	B-General_Concept
result	O
,	O
older	O
Apple	B-Operating_System
devices	I-Operating_System
incompatible	O
with	O
iOS	B-Operating_System
10	I-Operating_System
,	O
including	O
the	O
iPad	B-Operating_System
2	I-Operating_System
,	O
were	O
left	O
vulnerable	O
indefinitely	O
.	O
</s>
<s>
This	O
has	O
raised	O
concerns	O
of	O
potentially	O
widespread	O
attacks	O
using	O
the	O
exploit	O
,	O
particularly	O
in	O
locations	O
of	O
concentrated	O
iPad	B-Operating_System
2	I-Operating_System
deployment	O
,	O
such	O
as	O
certain	O
primary	O
and	O
secondary	O
schools	O
.	O
</s>
<s>
On	O
July	O
22	O
,	O
2019	O
,	O
Apple	O
released	O
iOS	O
9.3.6	O
for	O
the	O
CDMA	B-Protocol
model	O
of	O
the	O
iPad	B-Operating_System
2	I-Operating_System
to	O
fix	O
issues	O
caused	O
by	O
the	O
GPS	O
week	O
number	O
rollover	O
.	O
</s>
<s>
The	O
issues	O
would	O
impact	O
accuracy	O
of	O
GPS	O
location	O
and	O
set	O
the	O
device	B-Application
's	O
date	O
and	O
time	O
to	O
an	O
incorrect	O
value	O
,	O
preventing	O
connection	O
to	O
HTTPS	B-Protocol
servers	O
and	O
,	O
consequently	O
,	O
Apple	O
's	O
servers	O
for	O
activation	O
,	O
iCloud	B-Application
and	O
the	O
iTunes	O
and	O
App	B-Application
stores	I-Application
.	O
</s>
<s>
The	O
WiFi	O
model	O
and	O
the	O
GSM	O
model	O
are	O
not	O
affected	O
by	O
the	O
rollover	O
as	O
the	O
WiFi	O
model	O
lacks	O
a	B-General_Concept
GPS	O
chipset	O
and	O
the	O
GSM	O
model	O
uses	O
a	B-General_Concept
different	O
chipset	O
.	O
</s>
<s>
The	O
iPad	B-Operating_System
2	I-Operating_System
features	O
an	O
Apple	O
A5	O
package-on-package	O
(	O
PoP	O
)	O
System-on-chip	B-Architecture
(	O
SoC	B-Architecture
)	O
,	O
which	O
comprises	O
a	B-General_Concept
1GHz	O
dual-core	B-Architecture
32-bit	O
Cortex-A9	B-Application
CPU	B-General_Concept
,	O
512	O
MB	O
of	O
RAM	B-Architecture
and	O
a	B-General_Concept
dual-core	B-Architecture
PowerVR	B-Device
SGX543MP2	I-Device
GPU	B-Architecture
.	O
</s>
<s>
Other	O
features	O
include	O
front	O
and	O
rear	O
cameras	O
,	O
a	B-General_Concept
three-axis	O
gyroscope	B-Application
,	O
headset	O
controls	O
,	O
proximity	B-Device
and	O
ambient	O
light	O
sensors	O
,	O
microphone	B-Application
,	O
magnetometer	O
,	O
accelerometer	O
and	O
a	B-General_Concept
9.7inch	O
multi-touch	B-Application
screen	O
with	O
a	B-General_Concept
maximum	O
resolution	O
of	O
1024×768	O
hence	O
resulting	O
in	O
132	O
ppi	B-Algorithm
.	O
</s>
<s>
The	O
iPad	B-Operating_System
2	I-Operating_System
has	O
four	O
physical	O
switches	O
,	O
including	O
a	B-General_Concept
home	O
button	O
near	O
the	O
display	O
that	O
returns	O
the	O
user	O
to	O
the	O
home	O
screen	O
,	O
and	O
three	O
plastic	O
physical	O
switches	O
on	O
the	O
sides	O
:	O
wake/sleep	O
,	O
volume	O
up/down	O
,	O
and	O
a	B-General_Concept
third	O
switch	O
for	O
either	O
screen	O
rotation	O
lock	O
or	O
mute	O
.	O
</s>
<s>
The	O
home	O
button	O
on	O
the	O
iPad	B-Operating_System
2	I-Operating_System
is	O
"	O
easier	O
to	O
double	O
tap	O
"	O
than	O
the	O
previous	O
generation	O
of	O
the	O
iPad	B-Operating_System
.	O
</s>
<s>
Apple	O
reduced	O
the	O
size	O
of	O
the	O
iPad	B-Operating_System
by	O
eliminating	O
the	O
stamped	O
sheet	O
metal	O
frame	O
from	O
the	O
display	O
,	O
integrating	O
new	O
thinner	O
glass	O
technology	O
for	O
the	O
touch	B-Device
screen	I-Device
overlay	O
,	O
and	O
slightly	O
reducing	O
the	O
space	O
between	O
the	O
display	O
and	O
battery	O
.	O
</s>
<s>
The	O
iPad	B-Operating_System
2	I-Operating_System
's	O
screen	O
is	O
thinner	O
,	O
lighter	O
,	O
and	O
yet	O
stronger	O
than	O
the	O
original	B-Operating_System
iPad	I-Operating_System
's	O
.	O
</s>
<s>
The	O
iPad	B-Operating_System
2	I-Operating_System
also	O
supports	O
screen	O
mirroring	O
via	O
the	O
digital	O
AV	O
adapter	O
and	O
through	O
AirPlay	O
as	O
of	O
iOS	B-Operating_System
5	I-Operating_System
.	O
</s>
<s>
The	O
iPad	B-Operating_System
2	I-Operating_System
has	O
a	B-General_Concept
25W·h	O
rechargeable	B-Architecture
lithium-ion	O
polymer	O
battery	O
that	O
lasts	O
10	O
hours	O
,	O
like	O
the	O
original	B-Operating_System
iPad	I-Operating_System
.	O
</s>
<s>
It	O
is	O
charged	O
via	O
USB	O
or	O
included	O
10	O
W	O
,	O
2	O
A	B-General_Concept
power	O
adapter	O
.	O
</s>
<s>
The	O
10	O
W	O
USB	O
power	O
adapter	O
provides	O
4x	O
the	O
power	O
of	O
a	B-General_Concept
conventional	O
USB	O
port	O
.	O
</s>
<s>
The	O
tablet	B-Device
has	O
an	O
audio	O
frequency	O
response	O
of	O
20	O
Hz	O
to	O
20kHz	O
.	O
</s>
<s>
Without	O
third-party	O
software	O
it	O
can	O
play	O
the	O
following	O
audio	O
formats	O
:	O
HE-AAC	O
,	O
AAC	B-Application
,	O
Protected	B-Application
AAC	I-Application
,	O
MP3	O
,	O
MP3	O
VBR	O
,	O
Audible	O
formats	O
(	O
2	O
,	O
3	O
,	O
4	O
,	O
AEA	O
,	O
AAX	O
,	O
and	O
AAX+	O
)	O
,	O
ALAC	B-Algorithm
,	O
AIFF	O
,	O
and	O
WAV	O
.	O
</s>
<s>
The	O
revised	O
tablet	B-Device
adds	O
front	O
-	O
and	O
rear-facing	O
cameras	O
,	O
which	O
allow	O
FaceTime	B-Operating_System
video	I-Operating_System
calls	O
with	O
other	O
iPad	B-Operating_System
2s	I-Operating_System
,	O
the	O
third	B-Operating_System
generation	I-Operating_System
iPad	I-Operating_System
,	O
iPhone	B-Operating_System
4	I-Operating_System
and	O
4S	B-Operating_System
,	O
fourth-generation	O
iPod	B-Device
Touch	I-Device
and	O
Macintosh	B-Device
computers	O
(	O
running	O
Mac	O
OS	O
X	O
10.6.6	O
or	O
later	O
with	O
a	B-General_Concept
webcam	O
)	O
.	O
</s>
<s>
The	O
0.3	O
MP	O
front	O
camera	O
shoots	O
VGA-quality	O
30	O
frame/s	O
video	O
and	O
VGA-quality	O
still	O
photos	O
.	O
</s>
<s>
The	O
0.7	O
MP	O
back	O
camera	O
can	O
shoot	O
720p	O
HD	O
video	O
at	O
30	O
frame/s	O
and	O
has	O
a	B-General_Concept
5×	O
times	O
digital	B-Algorithm
zoom	I-Algorithm
.	O
</s>
<s>
Both	O
shoot	O
photo	O
in	O
a	B-General_Concept
4:3	O
fullscreen	O
aspect	O
ratio	O
.	O
</s>
<s>
The	O
Apple	O
A5	O
chip	O
doubles	O
processing	O
speed	O
and	O
has	O
graphics	O
processing	O
that	O
is	O
up	O
to	O
nine	O
times	O
faster	O
than	O
the	O
previous	O
iPad	B-Operating_System
.	O
</s>
<s>
However	O
,	O
benchtests	O
and	O
hardware	O
assessments	O
performed	O
by	O
various	O
third	O
party	O
news	O
sources	O
and	O
technology	O
blogs	O
indicate	O
that	O
those	O
claims	O
are	O
exaggerated	O
;	O
the	O
benchmark	O
assessment	O
conducted	O
by	O
Anandtech	O
showed	O
that	O
the	O
GPU	B-Architecture
of	O
the	O
iPad	B-Operating_System
2	I-Operating_System
is	O
only	O
3	O
times	O
faster	O
than	O
that	O
of	O
the	O
original	B-Operating_System
iPad	I-Operating_System
.	O
</s>
<s>
CPU	B-General_Concept
benchmarks	O
conducted	O
on	O
the	O
iPad	B-Operating_System
2	I-Operating_System
by	O
iOSnoops	O
indicate	O
a	B-General_Concept
66%	O
performance	O
increase	O
compared	O
to	O
the	O
original	B-Operating_System
iPad	I-Operating_System
.	O
</s>
<s>
3G	O
versions	O
of	O
the	O
iPad	B-Operating_System
2	I-Operating_System
offer	O
CDMA2000	O
support	O
for	O
customers	O
using	O
the	O
device	B-Application
on	O
a	B-General_Concept
CDMA	B-Protocol
network	O
or	O
GSM/UMTS	O
support	O
for	O
customers	O
using	O
the	O
device	B-Application
on	O
a	B-General_Concept
GSM/UMTS	O
network	O
.	O
</s>
<s>
The	O
iPad	B-Operating_System
Wi-Fi	O
+	O
3G	O
model	O
includes	O
an	O
A-GPS	O
receiver	O
for	O
tracking	O
the	O
user	O
's	O
location	O
given	O
permission	O
.	O
</s>
<s>
Also	O
,	O
the	O
iPad	B-Operating_System
2	I-Operating_System
3G	O
model	O
includes	O
a	B-General_Concept
plastic	O
cap-like	O
band	O
at	O
the	O
top	O
on	O
the	O
back	O
for	O
the	O
3G	O
antenna	O
.	O
</s>
<s>
The	O
metallic	O
grille	O
for	O
the	O
microphone	B-Application
is	O
replaced	O
with	O
a	B-General_Concept
matching	O
plastic	O
black	O
grille	O
on	O
the	O
3G	O
model	O
.	O
</s>
<s>
GSM	O
models	O
of	O
iPad	B-Operating_System
2	I-Operating_System
use	O
a	B-General_Concept
SIM	O
card	O
while	O
CDMA	B-Protocol
models	O
use	O
an	O
ESN	O
to	O
connect	O
to	O
the	O
cellular	O
network	O
.	O
</s>
<s>
The	O
device	B-Application
is	O
15%	O
lighter	O
and	O
33%	O
thinner	O
than	O
the	O
original	B-Operating_System
iPad	I-Operating_System
;	O
it	O
is	O
thinner	O
than	O
the	O
iPhone	B-Operating_System
4	I-Operating_System
by	O
0.5mm	O
.	O
</s>
<s>
Both	O
the	O
GSM	O
and	O
CDMA	B-Protocol
versions	O
(	O
known	O
respectively	O
as	O
the	O
AT&T	O
and	O
Verizon	B-Application
versions	O
in	O
the	O
US	O
)	O
differ	O
in	O
weight	O
slightly	O
due	O
to	O
the	O
mass	O
difference	O
between	O
the	O
GSM	O
and	O
CDMA	B-Protocol
cellular	O
radios	O
,	O
with	O
the	O
GSM	O
model	O
at	O
and	O
the	O
CDMA	B-Protocol
model	O
at	O
.	O
</s>
<s>
The	O
size	O
of	O
the	O
iPad	B-Operating_System
2	I-Operating_System
is	O
also	O
less	O
than	O
the	O
original	B-Operating_System
iPad	I-Operating_System
at	O
only	O
9.50	O
in	O
×	O
7.31	O
in	O
×	O
0.34in	O
(	O
241.2mm	O
×	O
185.7mm	O
×	O
8.8mm	O
)	O
,	O
compared	O
to	O
the	O
original	B-Operating_System
iPad	I-Operating_System
's	O
size	O
at	O
9.56	O
in	O
×	O
7.47	O
in	O
×	O
0.5in	O
(	O
242.8mm	O
×	O
189.7mm	O
×	O
13.4mm	O
)	O
.	O
</s>
<s>
After	O
the	O
announcement	O
and	O
release	O
of	O
the	O
third	B-Operating_System
generation	I-Operating_System
iPad	I-Operating_System
,	O
the	O
iPad	B-Operating_System
2	I-Operating_System
,	O
which	O
continued	O
to	O
be	O
available	O
for	O
purchase	O
,	O
received	O
a	B-General_Concept
hardware	O
upgrade	O
.	O
</s>
<s>
The	O
upgraded	O
variant	O
of	O
the	O
iPad	B-Operating_System
2	I-Operating_System
features	O
a	B-General_Concept
smaller	O
version	O
of	O
the	O
Apple	O
A5	O
SoC	B-Architecture
,	O
which	O
is	O
able	O
to	O
reduce	O
battery	O
consumption	O
.	O
</s>
<s>
Benchmark	O
tests	O
conducted	O
by	O
Anandtech	O
concluded	O
that	O
the	O
upgraded	O
variant	O
is	O
able	O
to	O
last	O
longer	O
by	O
at	O
least	O
an	O
hour	O
and	O
a	B-General_Concept
half	O
,	O
depending	O
on	O
the	O
task	O
that	O
is	O
conducted	O
on	O
the	O
device	B-Application
.	O
</s>
<s>
The	O
maximum	O
temperature	O
that	O
the	O
device	B-Application
heated	O
up	O
to	O
was	O
also	O
less	O
than	O
original	B-Operating_System
iPad	I-Operating_System
2	O
,	O
tests	O
conducted	O
by	O
the	O
same	O
organisation	O
revealed	O
that	O
the	O
upgraded	O
variant	O
was	O
able	O
to	O
operate	O
at	O
1	O
degree	O
lower	O
when	O
performing	O
intensive	O
tasks	O
.	O
</s>
<s>
The	O
Smart	O
Cover	O
,	O
first	O
introduced	O
with	O
the	O
iPad	B-Operating_System
2	I-Operating_System
,	O
is	O
a	B-General_Concept
screen	O
protector	O
that	O
magnetically	O
attaches	O
to	O
the	O
face	O
of	O
the	O
iPad	B-Operating_System
.	O
</s>
<s>
The	O
cover	O
has	O
three	O
folds	O
which	O
allow	O
it	O
to	O
convert	O
into	O
a	B-General_Concept
stand	O
,	O
which	O
is	O
also	O
held	O
together	O
by	O
magnets	O
.	O
</s>
<s>
While	O
original	B-Operating_System
iPad	I-Operating_System
owners	O
could	O
purchase	O
a	B-General_Concept
black	O
case	O
that	O
included	O
a	B-General_Concept
similarly	O
folding	O
cover	O
,	O
the	O
Smart	O
Cover	O
is	O
meant	O
to	O
be	O
more	O
minimal	O
,	O
easily	O
detachable	O
,	O
and	O
protects	O
only	O
the	O
screen	O
.	O
</s>
<s>
Smart	B-Device
Covers	I-Device
have	O
a	B-General_Concept
microfiber	O
bottom	O
that	O
cleans	O
the	O
front	O
of	O
the	O
iPad	B-Operating_System
,	O
and	O
wakes	O
up	O
the	O
iPad	B-Operating_System
when	O
the	O
cover	O
is	O
removed	O
.	O
</s>
<s>
Apple	O
offered	O
several	O
more	O
accessories	O
for	O
the	O
iPad	B-Operating_System
2	I-Operating_System
,	O
most	O
of	O
which	O
were	O
adapters	O
for	O
the	O
proprietary	O
30-pin	O
dock	B-Operating_System
connector	I-Operating_System
,	O
the	O
iPad	B-Operating_System
's	O
only	O
port	O
besides	O
the	O
headphone	O
jack	O
.	O
</s>
<s>
A	B-General_Concept
dock	O
holds	O
the	O
iPad	B-Operating_System
upright	O
at	O
an	O
angle	O
,	O
and	O
has	O
a	B-General_Concept
dock	B-Operating_System
connector	I-Operating_System
and	O
audio	O
line	O
out	O
port	O
.	O
</s>
<s>
The	O
iPad	B-Operating_System
can	O
use	O
Bluetooth	O
keyboards	O
that	O
also	O
work	O
with	O
Macs	B-Device
and	O
PCs	B-Device
.	O
</s>
<s>
The	O
iPad	B-Operating_System
can	O
be	O
charged	O
by	O
a	B-General_Concept
standalone	O
power	O
adapter	O
(	O
"	O
wall	O
charger	O
"	O
)	O
also	O
used	O
for	O
contemporary	O
iPods	B-Device
and	O
iPhones	B-Operating_System
,	O
and	O
a	B-General_Concept
10	O
W	O
charger	O
was	O
included	O
with	O
the	O
iPad	B-Operating_System
.	O
</s>
<s>
The	O
iPad	B-Operating_System
2	I-Operating_System
received	O
generally	O
positive	O
reviews	O
,	O
praising	O
its	O
Apple	O
A5	O
processor	O
and	O
720p	O
camera	O
.	O
</s>
<s>
Joshua	O
Topolsky	O
of	O
Engadget	B-Application
said	O
that	O
"	O
for	O
those	O
of	O
you	O
who	O
have	O
n't	O
yet	O
made	O
the	O
leap	O
,	O
feel	O
free	O
to	O
take	O
a	B-General_Concept
deep	O
breath	O
and	O
dive	O
in	O
–	O
the	O
iPad	B-Operating_System
2	I-Operating_System
is	O
as	O
good	O
as	O
it	O
gets	O
right	O
now	O
.	O
</s>
<s>
"	O
Though	O
the	O
iPad	B-Operating_System
2	I-Operating_System
is	O
an	O
improvement	O
on	O
the	O
original	B-Operating_System
iPad	I-Operating_System
in	O
numerous	O
ways	O
,	O
it	O
's	O
still	O
an	O
evolutionary	O
product	O
,	O
not	O
a	B-General_Concept
revolutionary	O
one	O
.	O
</s>
<s>
If	O
you	O
're	O
happy	O
with	O
your	O
current	O
iPad	B-Operating_System
,	O
there	O
's	O
no	O
reason	O
to	O
dump	O
it	O
just	O
because	O
there	O
's	O
a	B-General_Concept
shinier	O
,	O
newer	O
one	O
.	O
</s>
<s>
If	O
you	O
've	O
invested	O
in	O
iPad	B-Device
accessories	I-Device
such	O
as	O
a	B-General_Concept
dock	O
or	O
case	O
,	O
keep	O
in	O
mind	O
that	O
you	O
probably	O
wo	O
n't	O
be	O
able	O
to	O
use	O
them	O
with	O
the	O
new	O
iPad.	O
"	O
</s>
<s>
TechCrunch	O
's	O
MG	O
Siegler	O
stated	O
:	O
"	O
Let	O
me	O
sum	O
all	O
of	O
this	O
up	O
in	O
a	B-General_Concept
simple	O
way	O
:	O
the	O
iPad	B-Operating_System
2	I-Operating_System
,	O
should	O
you	O
buy	O
one	O
?	O
</s>
<s>
Maybe	O
—	O
it	O
depends	O
on	O
a	B-General_Concept
few	O
factors	O
.	O
</s>
<s>
The	O
closed	O
and	O
proprietary	O
nature	O
of	O
iOS	B-Application
has	O
garnered	O
criticism	O
,	O
particularly	O
by	O
digital	O
rights	O
advocates	O
such	O
as	O
the	O
Electronic	O
Frontier	O
Foundation	O
,	O
computer	O
engineer	O
and	O
activist	O
Brewster	O
Kahle	O
,	O
Internet-law	O
specialist	O
Jonathan	O
Zittrain	O
,	O
and	O
the	B-Operating_System
Free	I-Operating_System
Software	I-Operating_System
Foundation	I-Operating_System
who	O
protested	O
the	O
iPad	B-Operating_System
's	O
introductory	O
event	O
and	O
have	O
targeted	O
the	O
iPad	B-Operating_System
with	O
their	O
"	O
Defective	B-Application
by	I-Application
Design	I-Application
"	O
campaign	O
.	O
</s>
<s>
Competitor	O
Microsoft	O
,	O
via	O
a	B-General_Concept
PR	O
spokesman	O
,	O
has	O
also	O
criticized	O
Apple	O
's	O
control	O
over	O
its	O
platform	O
.	O
</s>
<s>
At	O
issue	O
are	O
restrictions	O
imposed	O
by	O
the	O
design	O
of	O
iOS	B-Application
,	O
namely	O
DRM	O
intended	O
to	O
lock	O
purchased	O
media	O
to	O
Apple	O
's	O
platform	O
,	O
the	O
development	O
model	O
(	O
requiring	O
a	B-General_Concept
yearly	O
subscription	O
to	O
distribute	O
apps	O
developed	O
for	O
the	O
iOS	B-Application
)	O
,	O
the	O
centralized	O
approval	O
process	O
for	O
apps	O
,	O
as	O
well	O
as	O
Apple	O
's	O
general	O
control	O
and	O
lockdown	O
of	O
the	O
platform	O
itself	O
.	O
</s>
<s>
Some	O
in	O
the	O
tech	O
community	O
have	O
expressed	O
concern	O
that	O
the	O
locked-down	O
iOS	B-Application
represents	O
a	B-General_Concept
growing	O
trend	O
in	O
Apple	O
's	O
approach	O
to	O
computing	O
,	O
particularly	O
Apple	O
's	O
shift	O
away	O
from	O
machines	O
that	O
hobbyists	O
can	O
"	O
tinker	O
with	O
"	O
and	O
note	O
the	O
potential	O
for	O
such	O
restrictions	O
to	O
stifle	O
software	O
innovation	O
.	O
</s>
<s>
Some	O
iPad	B-Operating_System
2	I-Operating_System
users	O
reported	O
performance	O
issues	O
when	O
running	O
iOS	B-Operating_System
8	I-Operating_System
.	O
</s>
<s>
Apple	O
improved	O
performance	O
on	O
the	O
iPad	B-Operating_System
2	I-Operating_System
and	O
the	O
iPhone	B-Operating_System
4S	I-Operating_System
on	O
the	O
iOS	B-Operating_System
8.1.1	I-Operating_System
update	O
.	O
</s>
<s>
Soon	O
after	O
the	O
first	O
weekend	O
,	O
Ashok	O
Kumar	O
,	O
a	B-General_Concept
technology	O
analyst	O
for	O
a	B-General_Concept
financial	O
firm	O
predicted	O
that	O
Apple	O
would	O
sell	O
35	O
million	O
iPad	B-Operating_System
2s	I-Operating_System
in	O
2011	O
.	O
</s>
<s>
Investment	O
banking	O
firm	O
,	O
Piper	O
Jaffray	O
monitored	O
the	O
initial	O
sales	O
of	O
the	O
iPad	B-Operating_System
2	I-Operating_System
and	O
reported	O
that	O
70%	O
of	O
all	O
iPad	B-Operating_System
2	I-Operating_System
sales	O
were	O
to	O
first-time	O
iPad	B-Operating_System
buyers	O
with	O
49%	O
of	O
buyers	O
owning	O
a	B-General_Concept
PC	O
compared	O
to	O
the	O
initial	O
buyers	O
of	O
the	O
original	B-Operating_System
iPad	I-Operating_System
where	O
only	O
26%	O
of	O
buyers	O
owned	O
a	B-General_Concept
PC	O
.	O
</s>
<s>
12,000	O
units	O
were	O
sold	O
on	O
auction	O
site	O
eBay	B-Application
in	O
its	O
first	O
two	O
weeks	O
of	O
release	O
.	O
</s>
<s>
When	O
the	O
iPhone	B-Operating_System
4S	I-Operating_System
was	O
released	O
,	O
rumors	O
about	O
the	O
third	B-Operating_System
generation	I-Operating_System
iPad	I-Operating_System
caused	O
a	B-General_Concept
decline	O
in	O
iPad	B-Operating_System
2	I-Operating_System
sales	O
.	O
</s>
<s>
Official	O
figures	O
released	O
in	O
the	O
fourth	O
quarter	O
of	O
2011	O
indicate	O
that	O
Apple	O
sold	O
11.4	O
million	O
iPads	B-Operating_System
in	O
the	O
third	O
quarter	O
,	O
a	B-General_Concept
166%	O
increase	O
from	O
the	O
third	O
quarter	O
of	O
2010	O
.	O
</s>
<s>
In	O
2011	O
two	O
iPad	B-Operating_System
2	I-Operating_System
tablets	B-Device
were	O
taken	O
to	O
the	O
International	O
Space	O
Station	O
after	O
being	O
approved	O
.	O
</s>
<s>
Other	O
Apple	O
products	O
that	O
were	O
taken	O
to	O
ISS	O
include	O
the	B-Device
iPod	I-Device
and	O
also	O
two	O
iPhone	B-Operating_System
4	I-Operating_System
phones	O
.	O
</s>
<s>
The	O
other	O
personal	B-Device
computing	I-Device
system	O
aboard	O
ISS	O
were	O
various	O
versions	O
of	O
the	O
ThinkPad	B-Operating_System
laptop	O
(	O
IBM	O
,	O
later	O
Lenovo	O
brand	O
)	O
.	O
</s>
<s>
Some	O
of	O
the	O
applications	O
the	O
iPads	B-Operating_System
were	O
used	O
for	O
include	O
Angry	O
Birds	O
game	O
and	O
the	O
ISS	O
FIT	O
(	O
International	O
Space	O
Station	O
Food	O
Intake	O
Tracker	O
)	O
for	O
tracking	O
astronauts	O
 '	O
food	O
consumption	O
.	O
</s>
