<s>
The	O
Adaptive	B-Language
Communication	I-Language
Environment	I-Language
(	O
ACE	O
)	O
is	O
an	O
open	B-Application
source	I-Application
software	I-Application
framework	O
used	O
for	O
network	O
programming	O
.	O
</s>
<s>
It	O
provides	O
a	O
set	O
of	O
object-oriented	B-Language
C++	B-Language
classes	O
designed	O
to	O
help	O
address	O
the	O
inherent	O
complexities	O
and	O
challenges	O
in	O
network	O
programming	O
by	O
preventing	O
common	O
errors	O
.	O
</s>
<s>
ACE	O
is	O
open-source	B-Application
software	I-Application
released	O
by	O
WU	O
's	O
Distributed	O
Object	O
Computer	O
(	O
DOC	O
)	O
group	O
.	O
</s>
<s>
It	O
provides	O
common	O
data	O
types	O
and	O
methods	O
to	O
access	O
the	O
powerful	O
but	O
complex	O
features	O
of	O
modern	O
operating	B-General_Concept
systems	I-General_Concept
.	O
</s>
<s>
These	O
include	O
:	O
inter-process	B-Operating_System
communication	I-Operating_System
,	O
thread	B-Operating_System
management	I-Operating_System
,	O
efficient	O
memory	B-General_Concept
management	I-General_Concept
,	O
etc	O
.	O
</s>
<s>
The	O
same	O
code	O
will	O
work	O
on	O
most	O
Unixes	B-Application
,	O
Windows	B-Application
,	O
VxWorks	B-Operating_System
,	O
QNX	B-Operating_System
,	O
OpenVMS	B-Operating_System
,	O
etc.	O
,	O
with	O
minimal	O
changes	O
.	O
</s>
<s>
Due	O
to	O
this	O
cross-platform	B-Operating_System
support	O
,	O
it	O
has	O
been	O
widely	O
used	O
in	O
the	O
development	O
of	O
communication	O
software	O
.	O
</s>
