<s>
A	O
remote	B-General_Concept
graphics	I-General_Concept
unit	I-General_Concept
(	O
RGU	O
)	O
is	O
a	O
device	O
that	O
allows	O
a	O
computer	O
to	O
be	O
separated	O
from	O
some	O
input/output	O
devices	O
such	O
as	O
keyboard	O
,	O
mouse	O
,	O
speakers	B-Device
,	O
and	O
display	O
monitors	O
.	O
</s>
<s>
RGUs	O
have	O
been	O
mostly	O
associated	O
with	O
high	O
end	O
workstations	O
running	O
Unix-like	B-Operating_System
operating	I-Operating_System
systems	I-Operating_System
or	O
Windows	O
since	O
the	O
late	O
1990s	O
.	O
</s>
<s>
Generally	O
RGUs	O
are	O
used	O
for	O
special	O
applications	O
like	O
remote	B-Application
sensing	I-Application
,	O
financial	O
services	O
commodity	O
trading	O
desks	O
,	O
computer-aided	B-Application
design	I-Application
,	O
etc	O
.	O
</s>
<s>
Depending	O
on	O
how	O
one	O
chooses	O
to	O
define	O
RGUs	O
,	O
dedicated	O
X	B-Protocol
terminals	I-Protocol
may	O
also	O
be	O
included	O
.	O
</s>
<s>
Unlike	O
other	O
technologies	O
used	O
to	O
achieve	O
this	O
,	O
such	O
as	O
KVM	B-Device
Extension	O
(	O
or	O
Remote	O
KVM	B-Device
)	O
and	O
DVI	B-Protocol
Extension	O
for	O
example	O
,	O
a	O
remote	B-General_Concept
graphics	I-General_Concept
unit	I-General_Concept
will	O
effectively	O
split	O
a	O
computer	O
's	O
PCI	O
or	O
PCI-Express	O
bus	O
and	O
transmit	O
only	O
bus	O
commands	O
over	O
to	O
the	O
user	O
side	O
.	O
</s>
<s>
With	O
KVM	B-Device
Extension	O
and	O
DVI	B-Protocol
Extension	O
,	O
the	O
graphics	O
processing	O
is	O
done	O
by	O
a	O
traditional	O
graphics	O
processing	O
unit	O
(	O
GPU	O
)	O
on	O
the	O
computer	O
side	O
.	O
</s>
<s>
Bus	O
data	O
is	O
much	O
smaller	O
than	O
rendered	O
graphics	O
data	O
so	O
the	O
theory	O
behind	O
the	O
remote	B-General_Concept
graphics	I-General_Concept
unit	I-General_Concept
is	O
that	O
it	O
is	O
possible	O
to	O
achieve	O
higher	O
resolutions	O
and	O
better	O
graphics	O
performance	O
when	O
there	O
is	O
a	O
large	O
separation	O
in	O
distance	O
between	O
the	O
user-side	O
input/output	O
devices	O
and	O
the	O
computer	O
side	O
.	O
</s>
<s>
An	O
example	O
of	O
a	O
product	O
line	O
that	O
was	O
commercialized	O
using	O
RGU	O
as	O
the	O
description	O
of	O
the	O
technology	O
is	O
the	O
Matrox	B-Application
Extio	O
series	O
.	O
</s>
<s>
Other	O
products	O
supporting	O
the	O
concept	O
behind	O
the	O
remote	B-General_Concept
graphics	I-General_Concept
unit	I-General_Concept
include	O
bus	O
extension	O
technologies	O
where	O
a	O
standard	O
graphics	O
processing	O
unit	O
is	O
plugged	O
into	O
a	O
remote	O
PCI	O
slot	O
via	O
a	O
standard	O
graphics	O
add-in	O
card	O
.	O
</s>
