<s>
OIS	O
(	O
Object-Oriented	B-Language
Input	O
System	O
)	O
is	O
a	O
code	B-Library
library	I-Library
for	O
constructing	O
a	O
human-computer	O
interface	O
with	O
input	B-Device
devices	I-Device
such	O
as	O
a	O
keyboard	B-Device
,	O
mouse	B-Device
or	O
game	O
controller	O
.	O
</s>
<s>
OIS	O
is	O
designed	O
so	O
that	O
software	O
developers	O
can	O
easily	O
use	O
input	O
from	O
these	O
devices	O
with	O
a	O
computer	B-Application
application	I-Application
.	O
</s>
<s>
The	O
Object-Oriented	B-Language
Input	O
Library	O
is	O
a	O
mostly	O
C++	B-Language
library	O
for	O
handling	O
input	O
.	O
</s>
<s>
Input	O
types	O
include	O
mouse	B-Device
,	O
keyboard	B-Device
,	O
joystick	B-Device
and	O
Wii	B-Device
remote	I-Device
.	O
</s>
<s>
OIS	O
is	O
meant	O
to	O
be	O
cross-platform	B-Operating_System
,	O
supporting	O
Windows	B-Application
and	O
Linux	B-Application
systems	O
.	O
</s>
<s>
OS	B-Operating_System
X	I-Operating_System
and	O
FreeBSD	B-Operating_System
are	O
only	O
partially	O
supported	O
.	O
</s>
<s>
OIS	O
uses	O
an	O
Object-oriented	B-Language
design	O
.	O
</s>
<s>
Various	O
types	O
of	O
input	O
including	O
mouse	B-Device
,	O
keyboard	B-Device
,	O
joystick	B-Device
and	O
Wii	B-Device
Remote	I-Device
are	O
supported	O
.	O
</s>
