<s>
A	O
killer	B-Device
micro	I-Device
is	O
a	O
microprocessor-based	O
machine	O
that	O
infringes	O
on	O
mini	B-Architecture
,	O
mainframe	B-Architecture
,	O
or	O
supercomputer	B-Architecture
performance	O
turf	O
.	O
</s>
<s>
It	O
originally	O
referred	O
to	O
the	O
replacement	O
of	O
vector	B-Operating_System
supercomputers	I-Operating_System
built	O
with	O
bipolar	O
technology	O
by	O
Massively	B-Operating_System
Parallel	I-Operating_System
Processors	O
(	O
MPP	O
)	O
assembled	O
from	O
a	O
larger	O
number	O
of	O
lower	O
performing	O
microprocessors	B-Architecture
.	O
</s>
<s>
These	O
systems	O
faced	O
initial	O
skepticism	O
,	O
based	O
on	O
the	O
assumption	O
that	O
applications	O
do	O
not	O
have	O
significant	O
parallelism	O
,	O
because	O
of	O
Amdahl	B-Operating_System
's	I-Operating_System
law	I-Operating_System
,	O
but	O
the	O
success	O
of	O
early	O
systems	O
such	O
as	O
nCUBE	B-Application
and	O
the	O
fast	O
progress	O
in	O
microprocessor	B-Architecture
performance	O
following	O
Moore	O
's	O
law	O
led	O
to	O
a	O
fast	O
replacement	O
.	O
</s>
<s>
Taken	O
from	O
the	O
title	O
of	O
Eugene	O
Brooks	O
 '	O
(	O
of	O
Lawrence	O
Livermore	O
Lab	O
)	O
talk	O
"	O
Attack	B-Device
of	I-Device
the	I-Device
Killer	I-Device
Micros	I-Device
"	O
at	O
Supercomputing	B-Architecture
1990	O
.	O
</s>
<s>
This	O
title	O
was	O
probably	O
chosen	O
after	O
the	O
Attack	B-Application
of	I-Application
the	I-Application
Killer	I-Application
Tomatoes	I-Application
cult	O
film	O
.	O
</s>
