<s>
A	O
cellular	B-Operating_System
architecture	I-Operating_System
is	O
a	O
type	O
of	O
computer	B-General_Concept
architecture	I-General_Concept
prominent	O
in	O
parallel	B-Operating_System
computing	I-Operating_System
.	O
</s>
<s>
Cellular	B-Operating_System
architectures	I-Operating_System
are	O
relatively	O
new	O
,	O
with	O
IBM	O
's	O
Cell	O
microprocessor	O
being	O
the	O
first	O
one	O
to	O
reach	O
the	O
market	O
.	O
</s>
<s>
Cellular	B-Operating_System
architecture	I-Operating_System
takes	O
multi-core	B-Architecture
architecture	I-Architecture
design	O
to	O
its	O
logical	O
conclusion	O
,	O
by	O
giving	O
the	O
programmer	O
the	O
ability	O
to	O
run	O
large	O
numbers	O
of	O
concurrent	B-Operating_System
threads	O
within	O
a	O
single	O
processor	O
.	O
</s>
<s>
Speed-up	O
is	O
achieved	O
by	O
exploiting	O
thread-level	B-Operating_System
parallelism	I-Operating_System
inherent	O
in	O
many	O
applications	O
.	O
</s>
<s>
Cell	O
,	O
a	O
cellular	B-Operating_System
architecture	I-Operating_System
containing	O
9	O
cores	O
,	O
is	O
the	O
processor	O
used	O
in	O
the	O
PlayStation	B-Operating_System
3	I-Operating_System
.	O
</s>
<s>
Another	O
prominent	O
cellular	B-Operating_System
architecture	I-Operating_System
is	O
Cyclops64	B-Device
,	O
a	O
massively	O
parallel	B-Operating_System
architecture	I-Operating_System
currently	O
under	O
development	O
by	O
IBM	O
.	O
</s>
<s>
Cellular	B-Operating_System
architectures	I-Operating_System
follow	O
the	O
low-level	B-Language
programming	I-Language
paradigm	O
,	O
which	O
exposes	O
the	O
programmer	O
to	O
much	O
of	O
the	O
underlying	O
hardware	O
.	O
</s>
