<s>
In	O
electrical	O
engineering	O
,	O
a	O
resistive	B-Device
touchscreen	I-Device
is	O
a	O
touch-sensitive	B-Device
computer	B-Device
display	I-Device
composed	O
of	O
two	O
flexible	O
sheets	O
coated	O
with	O
a	O
resistive	O
material	O
and	O
separated	O
by	O
an	O
air	O
gap	O
or	O
microdots	O
.	O
</s>
<s>
When	O
contact	O
is	O
made	O
to	O
the	O
surface	O
of	O
the	O
touchscreen	B-Device
,	O
the	O
two	O
sheets	O
are	O
pressed	O
together	O
.	O
</s>
<s>
Because	O
the	O
touchscreen	B-Device
senses	O
input	O
from	O
contact	O
with	O
nearly	O
any	O
object	O
(	O
finger	O
,	O
stylus/pen	O
,	O
palm	O
)	O
resistive	B-Device
touchscreens	I-Device
are	O
a	O
type	O
of	O
"	O
passive	O
"	O
technology	O
.	O
</s>
<s>
For	O
example	O
,	O
during	O
the	O
operation	O
of	O
a	O
four-wire	O
touchscreen	B-Device
,	O
a	O
uniform	O
,	O
unidirectional	O
voltage	O
gradient	O
is	O
applied	O
to	O
the	O
first	O
sheet	O
.	O
</s>
<s>
Resistive	B-Device
touchscreens	I-Device
typically	O
have	O
high	O
resolution	O
(	O
4096	O
x	O
4096	O
or	O
higher	O
)	O
,	O
providing	O
accurate	O
touch	O
control	O
.	O
</s>
<s>
Because	O
the	O
touchscreen	B-Device
responds	O
to	O
pressure	O
on	O
its	O
surface	O
,	O
contact	O
can	O
be	O
made	O
with	O
a	O
finger	O
or	O
any	O
other	O
pointing	O
device	O
.	O
</s>
<s>
Resistive	B-Device
touchscreen	I-Device
technology	O
works	O
well	O
with	O
almost	O
any	O
stylus-like	O
object	O
,	O
and	O
can	O
also	O
be	O
operated	O
with	O
gloved	O
fingers	O
and	O
bare	O
fingers	O
alike	O
.	O
</s>
<s>
In	O
some	O
circumstances	O
,	O
this	O
is	O
more	O
desirable	O
than	O
a	O
capacitive	B-Device
touchscreen	B-Device
,	O
which	O
needs	O
a	O
capacitive	B-Device
pointer	O
,	O
such	O
as	O
a	O
bare	O
finger	O
(	O
though	O
some	O
capacitive	B-Device
sensors	I-Device
can	O
detect	O
gloves	B-General_Concept
and	O
some	O
gloves	B-General_Concept
can	O
work	O
with	O
all	O
capacitive	B-Device
screens	O
)	O
.	O
</s>
<s>
A	O
resistive	B-Device
touchscreen	I-Device
operated	O
with	O
a	O
stylus	B-Operating_System
will	O
generally	O
offer	O
greater	O
pointing	O
precision	O
than	O
a	O
capacitive	B-Device
touchscreen	B-Device
operated	O
with	O
a	O
finger	O
.	O
</s>
<s>
Costs	O
are	O
relatively	O
low	O
when	O
compared	O
with	O
active	O
touchscreen	B-Device
technologies	O
,	O
but	O
are	O
also	O
more	O
prone	O
to	O
damage	O
.	O
</s>
<s>
Resistive	B-Device
touchscreen	I-Device
technology	O
can	O
be	O
made	O
to	O
support	O
multi-touch	B-Application
input	O
.	O
</s>
<s>
Single-touch	O
screens	O
register	O
multiple	B-Application
touch	I-Application
inputs	O
in	O
their	O
balanced	O
location	O
and	O
pressure	O
levels	O
.	O
</s>
<s>
For	O
people	O
who	O
must	O
grip	O
the	O
active	O
portion	O
of	O
the	O
screen	O
or	O
must	O
set	O
their	O
entire	O
hand	O
down	O
on	O
the	O
screen	O
,	O
alternative	O
touchscreen	B-Device
technologies	O
are	O
available	O
,	O
such	O
as	O
an	O
active	O
touchscreen	B-Device
in	O
which	O
only	O
the	O
stylus	B-Operating_System
creates	O
input	O
and	O
skin	O
touches	O
are	O
rejected	O
.	O
</s>
<s>
However	O
,	O
newer	O
touchscreen	B-Device
technologies	O
allow	O
the	O
use	O
of	O
multi-touch	B-Application
without	O
the	O
aforementioned	O
vectoring	O
issues	O
.	O
</s>
<s>
Where	O
conditions	O
allow	O
bare	O
finger	O
operation	O
,	O
the	O
resistive	B-Device
screen	I-Device
's	O
poorer	O
responsiveness	O
to	O
light	O
touches	O
has	O
caused	O
it	O
to	O
generally	O
be	O
considered	O
for	O
use	O
with	O
low	O
resolution	O
screens	O
and	O
to	O
lose	O
market	O
share	O
to	O
capacitive	B-Device
screens	O
in	O
the	O
21st	O
century	O
.	O
</s>
<s>
Projected	O
capacitive	B-Device
touchscreen	B-Device
technology	O
overtook	O
resistive	B-Device
touchscreen	I-Device
technology	O
in	O
revenue	O
in	O
2010	O
and	O
in	O
units	O
in	O
2011	O
.	O
</s>
