<s>
A	O
uniprocessor	B-Operating_System
system	I-Operating_System
is	O
defined	O
as	O
a	O
computer	O
system	O
that	O
has	O
a	O
single	O
central	B-General_Concept
processing	I-General_Concept
unit	I-General_Concept
that	O
is	O
used	O
to	O
execute	O
computer	O
tasks	O
.	O
</s>
<s>
As	O
more	O
and	O
more	O
modern	O
software	O
is	O
able	O
to	O
make	O
use	O
of	O
multiprocessing	B-Operating_System
architectures	O
,	O
such	O
as	O
SMP	B-Operating_System
and	O
MPP	B-Operating_System
,	O
the	O
term	O
uniprocessor	B-Operating_System
is	O
therefore	O
used	O
to	O
distinguish	O
the	O
class	O
of	O
computers	O
where	O
all	O
processing	O
tasks	O
share	O
a	O
single	O
CPU	B-General_Concept
.	O
</s>
<s>
Most	O
desktop	B-Device
computers	I-Device
are	O
shipped	O
with	O
multiprocessing	B-Operating_System
architectures	O
since	O
the	O
2010s	O
.	O
</s>
