<s>
UNIX/32V	B-Operating_System
is	O
an	O
early	O
version	O
of	O
the	O
Unix	B-Application
operating	I-Application
system	I-Application
from	O
Bell	O
Laboratories	O
,	O
released	O
in	O
June	O
1979	O
.	O
</s>
<s>
32V	B-Operating_System
was	O
a	O
direct	O
port	O
of	O
the	O
Seventh	B-Operating_System
Edition	I-Operating_System
Unix	I-Operating_System
to	O
the	O
DEC	B-Device
VAX	I-Device
architecture	O
.	O
</s>
<s>
Before	O
32V	B-Operating_System
,	O
Unix	B-Application
had	O
primarily	O
run	O
on	O
DEC	B-Device
PDP-11	I-Device
computers	O
.	O
</s>
<s>
The	O
Bell	O
Labs	O
group	O
that	O
developed	O
the	O
operating	B-General_Concept
system	I-General_Concept
was	O
dissatisfied	O
with	O
DEC	O
,	O
so	O
its	O
members	O
refused	O
DEC	O
's	O
offer	O
to	O
buy	O
a	O
VAX	B-Device
when	O
the	O
machine	O
was	O
announced	O
in	O
1977	O
.	O
</s>
<s>
They	O
had	O
already	O
begun	O
a	O
Unix	B-Application
port	O
to	O
the	O
Interdata	B-Device
8/32	I-Device
instead	O
.	O
</s>
<s>
DEC	O
then	O
approached	O
a	O
different	O
Bell	O
Labs	O
group	O
in	O
Holmdel	O
,	O
New	O
Jersey	O
,	O
which	O
accepted	O
the	O
offer	O
and	O
started	O
work	O
on	O
what	O
was	O
to	O
become	O
32V	B-Operating_System
.	O
</s>
<s>
Performed	O
by	O
Tom	O
London	O
and	O
John	O
F	O
.	O
Reiser	O
,	O
porting	O
Unix	B-Application
was	O
made	O
possible	O
due	O
to	O
work	O
done	O
between	O
the	O
Sixth	O
and	O
Seventh	O
Editions	O
of	O
the	O
operating	B-General_Concept
system	I-General_Concept
to	O
decouple	O
it	O
from	O
its	O
"	O
native	O
"	O
PDP-11	B-Device
environment	O
.	O
</s>
<s>
The	O
32V	B-Operating_System
team	O
first	O
ported	O
the	O
C	B-Language
compiler	O
(	O
Johnson	O
's	O
pcc	B-Application
)	O
,	O
adapting	O
an	O
assembler	O
and	O
loader	O
written	O
for	O
the	O
Interdata	B-Device
8/32	I-Device
version	O
of	O
Unix	B-Application
to	O
the	O
VAX	B-Device
.	O
</s>
<s>
They	O
then	O
ported	O
the	O
April	O
15	O
,	O
1978	O
version	O
of	O
Unix	B-Application
,	O
finding	O
in	O
the	O
process	O
that	O
"[t]he	O
(	O
Bourne	O
)	O
shell	O
 [ ... ] 	O
required	O
by	O
far	O
the	O
largest	O
conversion	O
effort	O
of	O
any	O
supposedly	O
portable	O
program	O
,	O
for	O
the	O
simple	O
reason	O
that	O
it	O
is	O
not	O
portable.	O
"	O
</s>
<s>
UNIX/32V	B-Operating_System
was	O
released	O
without	O
virtual	B-Architecture
memory	I-Architecture
paging	B-Architecture
,	O
retaining	O
only	O
the	O
swapping	O
architecture	O
of	O
Seventh	O
Edition	O
.	O
</s>
<s>
A	O
virtual	B-Architecture
memory	I-Architecture
system	O
was	O
added	O
at	O
Berkeley	O
by	O
Bill	O
Joy	O
and	O
Özalp	O
Babaoğlu	O
in	O
order	O
to	O
support	O
Franz	O
Lisp	O
;	O
this	O
was	O
released	O
to	O
other	O
Unix	B-Application
licensees	O
as	O
the	O
Third	O
Berkeley	B-Operating_System
Software	I-Operating_System
Distribution	I-Operating_System
(	O
3BSD	O
)	O
in	O
1979	O
.	O
</s>
<s>
Thanks	O
to	O
the	O
popularity	O
of	O
the	O
two	O
systems	O
 '	O
successors	O
,	O
4BSD	O
and	O
UNIX	B-Operating_System
System	I-Operating_System
V	I-Operating_System
,	O
UNIX/32V	B-Operating_System
is	O
an	O
antecedent	O
of	O
nearly	O
all	O
modern	O
Unix	B-Application
systems	I-Application
.	O
</s>
