<s>
A	O
chunk	B-General_Concept
is	O
a	O
fragment	O
of	O
information	O
which	O
is	O
used	O
in	O
many	O
multimedia	O
file	O
formats	O
,	O
such	O
as	O
PNG	O
,	O
IFF	B-Device
,	O
MP3	B-Application
and	O
AVI	O
.	O
</s>
<s>
Each	O
chunk	B-General_Concept
contains	O
a	O
header	B-General_Concept
which	O
indicates	O
some	O
parameters	O
(	O
e.g.	O
</s>
<s>
the	O
type	O
of	O
chunk	B-General_Concept
,	O
comments	O
,	O
size	O
etc	O
.	O
)	O
.	O
</s>
<s>
Following	O
the	O
header	B-General_Concept
is	O
a	O
variable	O
area	O
containing	O
data	O
,	O
which	O
is	O
decoded	O
by	O
the	O
program	O
from	O
the	O
parameters	O
in	O
the	O
header	B-General_Concept
.	O
</s>
<s>
Chunks	B-General_Concept
may	O
also	O
be	O
fragments	O
of	O
information	O
which	O
are	O
downloaded	O
or	O
managed	O
by	O
P2P	O
programs	O
.	O
</s>
<s>
In	O
distributed	B-Architecture
computing	I-Architecture
,	O
a	O
chunk	B-General_Concept
is	O
a	O
set	O
of	O
data	O
which	O
is	O
sent	O
to	O
a	O
processor	O
or	O
one	O
of	O
the	O
parts	O
of	O
a	O
computer	O
for	O
processing	O
.	O
</s>
