<s>
In	O
computing	O
,	O
sendfile	B-General_Concept
is	O
a	O
command	O
which	O
can	O
be	O
found	O
in	O
a	O
number	O
of	O
contexts	O
relating	O
to	O
data	O
transmission	O
:	O
</s>
<s>
Sendfile	B-General_Concept
(	O
system	B-Operating_System
call	I-Operating_System
)	O
,	O
a	O
system	B-Operating_System
call	I-Operating_System
.	O
</s>
<s>
As	O
a	O
command	O
within	O
an	O
Instant	B-Application
messaging	I-Application
application	O
.	O
</s>
