<s>
The	O
Teramac	B-Device
was	O
an	O
experimental	O
massively	O
parallel	B-Operating_System
computer	I-Operating_System
designed	O
by	O
HP	O
in	O
the	O
1990s	O
.	O
</s>
<s>
Contrary	O
to	O
traditional	O
systems	O
,	O
which	O
are	O
useless	O
if	O
there	O
is	O
one	O
defect	O
,	O
Teramac	B-Device
used	O
defective	O
processors	B-Device
--	O
intentionally	O
--	O
to	O
demonstrate	O
its	O
defect-tolerant	O
architecture	O
.	O
</s>
<s>
Even	O
though	O
the	O
computer	O
had	O
220,000	O
hardware	O
defects	O
,	O
it	O
was	O
able	O
to	O
perform	O
some	O
tasks	O
100	O
times	O
faster	O
than	O
a	O
single-processor	O
high-end	O
workstation	B-Device
.	O
</s>
<s>
Teramac	B-Device
was	O
originally	O
developed	O
by	O
scientists	O
in	O
HP	O
's	O
central	O
research	O
lab	O
,	O
HP	O
Labs	O
,	O
in	O
the	O
mid	O
1990s	O
.	O
</s>
<s>
Although	O
it	O
contained	O
conventional	O
silicon	O
integrated	O
circuit	O
technology	O
,	O
it	O
paved	O
the	O
way	O
for	O
some	O
of	O
HP	O
's	O
work	O
in	O
nanoelectronics	B-Algorithm
because	O
it	O
provided	O
an	O
architecture	O
on	O
which	O
a	O
chemically	O
assembled	O
computer	O
could	O
operate	O
.	O
</s>
<s>
The	O
experience	O
from	O
this	O
program	O
was	O
used	O
to	O
design	O
the	O
Field	B-General_Concept
Programmable	I-General_Concept
Nanowire	I-General_Concept
Interconnect	I-General_Concept
circuit	O
.	O
</s>
