<s>
Asio	O
is	O
a	O
freely	O
available	O
,	O
open-source	B-Application
,	O
cross-platform	B-Operating_System
C++	B-Language
library	B-Library
for	O
network	B-Operating_System
programming	I-Operating_System
.	O
</s>
<s>
It	O
provides	O
developers	O
with	O
a	O
consistent	O
asynchronous	B-Architecture
I/O	I-Architecture
model	O
using	O
a	O
modern	O
C++	B-Language
approach	O
.	O
</s>
<s>
Boost.Asio	O
was	O
accepted	O
into	O
the	O
Boost	B-Language
library	I-Language
on	O
30	O
December	O
2005	O
after	O
a	O
20-day	O
review	O
.	O
</s>
<s>
The	O
library	B-Library
has	O
been	O
developed	O
by	O
Christopher	O
M	O
.	O
Kohlhoff	O
since	O
2003	O
.	O
</s>
<s>
A	O
networking	O
proposal	O
based	O
on	O
Asio	O
was	O
submitted	O
to	O
the	O
C++	B-Language
standards	O
committee	O
in	O
2006	O
for	O
possible	O
inclusion	O
in	O
the	O
second	O
Technical	O
Report	O
on	O
C++	B-Language
Library	B-Library
Extensions	O
(	O
TR2	O
)	O
.	O
</s>
