<s>
The	O
PowerNode	B-Device
9080	I-Device
was	O
a	O
dual	O
processor	O
32-bit	O
Superminicomputer	B-Device
produced	O
by	O
Fort	O
Lauderdale	O
,	O
Florida	O
based	O
electronics	O
company	O
Gould	O
Electronics	O
in	O
the	O
1980s	O
.	O
</s>
<s>
Its	O
UTX/32	O
4.3BSD	O
Berkeley	O
Unix-based	O
operating	O
system	O
was	O
one	O
of	O
the	O
first	O
multi-processor	O
shared	O
memory	O
implementations	O
of	O
Unix	O
,	O
although	O
the	O
processors	O
operated	O
in	O
a	O
Master-Slave	O
configuration	O
with	O
a	O
Mutual	O
Exclusion	O
(	O
MutEx	B-Operating_System
)	O
lock	O
on	O
all	O
manipulations	O
on	O
Kernel	B-Operating_System
tables	O
.	O
</s>
<s>
The	O
machine	O
itself	O
was	O
housed	O
in	O
a	O
number	O
of	O
19	O
inch	O
rack	O
cabinets	O
and	O
the	O
main	O
CPUs	B-General_Concept
consisted	O
of	O
18	O
boards	O
of	O
ECL	O
logic	O
.	O
</s>
<s>
The	O
PowerNode	O
systems	O
were	O
a	O
very	O
close	O
relative	O
of	O
Gould	O
Concept-32	O
real	B-General_Concept
time	I-General_Concept
computer	I-General_Concept
systems	O
running	O
their	O
proprietary	O
MPX	O
real	O
time	O
operating	O
system	O
.	O
</s>
<s>
The	O
most	O
significant	O
of	O
these	O
was	O
the	O
Memory	O
Management	O
board	O
which	O
had	O
virtual	B-Architecture
memory	I-Architecture
mapping	O
abilities	O
in	O
the	O
Unix-variant	O
but	O
not	O
in	O
the	O
real-time	O
variant	O
.	O
</s>
