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Gmail B-Application
account O
. O
</s>
<s>
Cellular O
networks O
, O
such O
as O
GSM O
, O
UMTS B-Protocol
or O
LTE O
networks O
, O
also O
use O
a O
MAC B-Protocol
layer I-Protocol
. O
</s>
<s>
Most O
modern O
PSDs O
are O
dedicated O
solid B-Device
state I-Device
drives I-Device
( O
SSD B-Device
) O
that O
are O
connected O
to O
a O
computer O
and O
powered O
via O
USB B-Protocol
ports I-Protocol
. O
</s>
<s>
PCI B-Protocol
Signaling O
Levels O
the O
PCI B-Protocol
bus I-Protocol
may O
operate O
at O
+ O
3.3V O
or O
+5V O
signaling O
levels O
. O
</s>
<s>
Retrieved O
7 O
April O
2016 O
1.3 O
billion O
monthly O
active O
users O
( O
September O
2017 O
) O
Google O
Meet/ChatGoogle O
LLC O
iMessage O
Apple O
Inc O
. O
140 O
million O
users O
( O
June O
2012 O
) O
Kik B-Protocol
Messenger I-Protocol
Kik B-Protocol
Interactive I-Protocol
300 O