<s>
The	O
Eclipse	B-Device
MV/8000	I-Device
was	O
the	O
first	O
in	O
a	O
family	O
of	O
32-bit	O
minicomputers	B-Architecture
produced	O
by	O
Data	O
General	O
during	O
the	O
1980s	O
.	O
</s>
<s>
Codenamed	O
Eagle	O
during	O
development	O
,	O
its	O
architecture	O
was	O
a	O
new	O
32-bit	O
design	O
backward	O
compatible	O
with	O
the	O
previous	O
16-bit	B-Device
Eclipse	B-Device
series	O
.	O
</s>
<s>
The	O
MV/8000	B-Device
was	O
succeeded	O
by	O
the	O
MV/6000	O
,	O
MV/8000	B-Device
-II	O
,	O
MV/2000	O
,	O
MV/2500	O
,	O
MV/4000	O
,	O
MV/10000	O
,	O
MV15000	O
,	O
MV/20000	O
,	O
MV/30000	O
and	O
MV/40000	O
.	O
</s>
<s>
Later	O
models	O
such	O
as	O
the	O
MV/40000	O
were	O
SMP	B-Operating_System
systems	O
with	O
hot-swappable	O
components	O
.	O
</s>
<s>
The	O
Eclipse	B-Device
MV	I-Device
was	O
a	O
32-bit	O
CISC	B-Architecture
architecture	I-Architecture
with	O
a	O
4GB	O
address	O
space	O
.	O
</s>
<s>
The	O
4GB	O
address	O
space	O
was	O
divided	O
into	O
eight	O
rings	B-Operating_System
of	O
512MB	O
each	O
with	O
a	O
privilege	O
mechanism	O
mapped	O
onto	O
the	O
rings	B-Operating_System
.	O
</s>
<s>
Tasks	O
were	O
very	O
easy	O
to	O
use	O
from	O
Data	O
General	O
's	O
FORTRAN	B-Application
compiler	O
,	O
and	O
allowed	O
faster	O
context	B-Operating_System
switching	I-Operating_System
than	O
using	O
full	O
processes	O
.	O
</s>
<s>
The	O
MV/8000	B-Device
had	O
only	O
two	O
"	O
true	O
"	O
batch	O
processes	O
,	O
as	O
not	O
to	O
frustrate	O
the	O
online	O
processes	O
.	O
</s>
