<s>
A	O
payment	O
terminal	O
,	O
also	O
known	O
as	O
a	O
point	O
of	O
sale	O
(	O
POS	O
)	O
terminal	O
,	O
credit	O
card	O
terminal	O
,	O
PIN	O
pad	O
,	O
EFTPOS	O
terminal	O
(	O
or	O
by	O
the	O
older	O
term	O
as	O
PDQ	B-Device
terminal	I-Device
which	O
stands	O
for	O
"	O
Process	O
Data	O
Quickly	O
"	O
)	O
,	O
is	O
a	O
device	O
which	O
interfaces	O
with	O
payment	O
cards	O
to	O
make	O
electronic	O
funds	O
transfers	O
.	O
</s>
<s>
Some	O
also	O
have	O
the	O
ability	O
to	O
cache	B-General_Concept
transactional	O
data	O
to	O
be	O
transmitted	O
to	O
the	O
gateway	B-Protocol
processor	I-Protocol
when	O
a	O
connection	O
becomes	O
available	O
;	O
the	O
major	O
drawback	O
to	O
this	O
is	O
that	O
immediate	O
authorization	O
is	O
not	O
available	O
at	O
the	O
time	O
the	O
card	O
was	O
processed	O
,	O
which	O
can	O
subsequently	O
result	O
in	O
failed	O
payments	O
.	O
</s>
<s>
Wireless	O
terminals	O
transmit	O
card	O
data	O
using	O
Bluetooth	B-Protocol
,	O
Wi-Fi	O
,	O
cellular	O
,	O
or	O
even	O
satellite	O
networks	O
in	O
remote	O
areas	O
and	O
onboard	O
airplanes	O
.	O
</s>
<s>
In	O
the	O
late	O
1990s	O
and	O
early	O
2000s	O
contactless	B-Application
payment	I-Application
systems	O
were	O
introduced	O
and	O
the	O
payment	O
terminals	O
were	O
updated	O
to	O
include	O
the	O
ability	O
to	O
read	O
these	O
cards	O
using	O
near	O
field	O
communication	O
(	O
NFC	O
)	O
technology	O
.	O
</s>
<s>
Like	O
automated	O
teller	O
machines	O
,	O
many	O
payment	O
terminals	O
are	O
also	O
equipped	O
with	O
raised	O
tactile	O
buttons	O
and	O
an	O
earphone	B-Device
jack	I-Device
which	O
allow	O
the	O
blind	O
to	O
audibly	O
finish	O
the	O
payment	O
process	O
.	O
</s>
<s>
A	O
merchant	O
can	O
replace	O
the	O
functionality	O
of	O
dedicated	O
credit	O
card	O
terminal	O
hardware	O
using	O
a	O
terminal	B-Application
application	I-Application
running	O
on	O
a	O
PC	B-Device
or	O
mobile	B-Application
device	I-Application
,	O
such	O
as	O
a	O
smartphone	B-Application
.	O
</s>
<s>
They	O
usually	O
work	O
with	O
dedicated	O
hardware	B-Device
readers	I-Device
that	O
can	O
transfer	O
magnetic	O
stripe	O
data	O
to	O
the	O
application	O
,	O
while	O
there	O
are	O
also	O
some	O
that	O
also	O
work	O
with	O
smart	O
cards	O
(	O
using	O
technology	O
such	O
as	O
EMV	O
)	O
,	O
although	O
this	O
is	O
rarely	O
seen	O
on	O
smartphone	B-Application
readers	O
.	O
</s>
<s>
In	O
addition	O
,	O
more	O
and	O
more	O
devices	O
are	O
beginning	O
to	O
offer	O
built-in	O
RFID	B-Application
or	O
NFC	O
technology	O
to	O
accommodate	O
contactless	B-Application
or	O
mobile	B-Application
device	I-Application
payment	O
methods	O
,	O
often	O
without	O
requiring	O
additional	O
external	O
hardware	O
.	O
</s>
<s>
Mobile	O
payment	O
systems	O
such	O
as	O
those	O
based	O
on	O
QR	O
code	O
payments	O
bypass	O
the	O
need	O
for	O
payment	O
terminals	O
altogether	O
,	O
relying	O
on	O
smartphones	B-Application
and	O
a	O
printed	O
QR	O
code	O
.	O
</s>
