<s>
SUPER-UX	B-Operating_System
was	O
a	O
version	O
of	O
the	O
Unix	B-Application
operating	I-Application
system	I-Application
from	O
NEC	O
that	O
is	O
used	O
on	O
its	O
SX	B-Device
series	O
of	O
supercomputers	B-Architecture
.	O
</s>
<s>
The	O
initial	O
version	O
of	O
SUPER-UX	B-Operating_System
was	O
based	O
on	O
UNIX	B-Operating_System
System	I-Operating_System
V	I-Operating_System
version	O
3.1	O
with	O
features	O
from	O
BSD	B-Operating_System
4.3	O
.	O
</s>
<s>
The	O
version	O
for	O
the	O
NEC	B-Device
SX-9	I-Device
was	O
based	O
on	O
SVR4.2MP	O
with	O
BSD	B-Operating_System
enhancements	O
.	O
</s>
<s>
SUPER-UX	B-Operating_System
is	O
a	O
64-bit	O
UNIX	B-Application
operating	I-Application
system	I-Application
.	O
</s>
<s>
It	O
supports	O
the	O
Supercomputer	B-Architecture
File	O
System	O
(	O
SFS	O
)	O
.	O
</s>
<s>
The	O
Earth	B-Device
Simulator	I-Device
uses	O
a	O
custom	O
OS	O
called	O
"	O
ESOS	O
"	O
(	O
Earth	B-Operating_System
Simulator	I-Operating_System
Operating	I-Operating_System
System	I-Operating_System
)	O
based	O
on	O
SUPER-UX	B-Operating_System
.	O
</s>
<s>
It	O
has	O
many	O
enhanced	O
features	O
custom	O
designed	O
for	O
the	O
Earth	B-Device
Simulator	I-Device
which	O
are	O
not	O
in	O
the	O
regular	O
SUPER-UX	B-Operating_System
OS	O
.	O
</s>
