<s>
The	O
Model	O
7/32	O
and	O
Model	O
8/32	O
were	O
32-bit	O
minicomputers	B-Architecture
introduced	O
by	O
Perkin-Elmer	O
after	O
they	O
acquired	O
Interdata	O
,	O
Inc.	O
,	O
in	O
1973	O
.	O
</s>
<s>
Interdata	B-Device
computers	O
are	O
primarily	O
remembered	O
for	O
being	O
the	O
first	O
32-bit	O
minicomputers	B-Architecture
under	O
$	O
10,000	O
.	O
</s>
<s>
The	O
8/32	O
was	O
a	O
more	O
powerful	O
machine	O
than	O
the	O
7/32	O
,	O
with	O
the	O
notable	O
feature	O
of	O
allowing	O
user-programmable	O
microcode	B-Device
to	O
be	O
employed	O
.	O
</s>
<s>
After	O
the	O
commercial	O
success	O
of	O
the	O
microcoded	B-Device
,	O
mainframe	B-Architecture
IBM	O
360-series	O
of	O
computers	O
,	O
startup	O
companies	O
arrived	O
on	O
the	O
scene	O
to	O
scale	O
microcode	B-Device
technology	O
to	O
the	O
smaller	O
minicomputers	B-Architecture
.	O
</s>
<s>
Among	O
these	O
companies	O
were	O
Prime	O
Computer	O
,	O
Microdata	O
,	O
and	O
Interdata	B-Device
.	O
</s>
<s>
Interdata	B-Device
used	O
microcode	B-Device
to	O
define	O
an	O
architecture	O
that	O
was	O
heavily	O
influenced	O
by	O
the	O
IBM	B-Application
360	I-Application
instruction	O
set	O
.	O
</s>
<s>
The	O
DOS-type	O
real-time	B-General_Concept
serial/multitasking	O
operating	B-General_Concept
system	I-General_Concept
was	O
called	O
OS/32	O
.	O
</s>
<s>
Writeable	O
control	B-General_Concept
store	I-General_Concept
–	O
The	O
7/32	O
does	O
not	O
have	O
one	O
and	O
the	O
8/32	O
does	O
.	O
</s>
<s>
The	O
7/32	O
and	O
8/32	O
became	O
the	O
computers	O
of	O
choice	O
in	O
large	O
scale	O
embedded	B-Architecture
systems	I-Architecture
,	O
such	O
as	O
FFT	O
machines	O
used	O
in	O
real-time	B-General_Concept
seismic	O
analysis	O
,	O
CAT	O
scanners	O
,	O
and	O
flight	B-Application
simulator	I-Application
systems	O
.	O
</s>
<s>
They	O
were	O
also	O
often	O
used	O
as	O
non-IBM	O
peripherals	O
in	O
IBM	B-Architecture
networks	I-Architecture
,	O
serving	O
the	O
role	O
of	O
HASP	B-Application
workstations	B-Device
and	O
spooling	B-Device
systems	O
,	O
so	O
called	O
RJE	B-Protocol
(	O
Remote	B-Protocol
Job	I-Protocol
Entry	I-Protocol
)	O
stations	O
.	O
</s>
<s>
For	O
example	O
,	O
the	O
computers	O
behind	O
the	O
first	O
Space	O
Shuttle	O
simulator	B-Application
consisted	O
of	O
thirty-six	O
32-bit	O
minis	O
inputting	O
and/or	O
outputting	O
data	O
to	O
networked	O
mainframe	B-Architecture
computers	I-Architecture
(	O
both	O
IBM	O
and	O
Univac	O
)	O
,	O
all	O
in	O
real-time	B-General_Concept
.	O
</s>
<s>
The	O
8/32	O
was	O
also	O
employed	O
by	O
Mathematical	O
Applications	O
Group	O
,	O
Inc	O
.	O
(	O
MAGI	O
)	O
to	O
produce	O
the	O
vast	O
majority	O
of	O
the	O
3D	O
computer-generated	O
imagery	O
(	O
CGI	O
)	O
in	O
the	O
1982	O
film	O
Tron	B-Language
.	O
</s>
<s>
While	O
CGI	O
had	O
been	O
used	O
during	O
the	O
1970s	O
for	O
minor	O
segments	O
of	O
film	O
work	O
(	O
such	O
as	O
titles	O
)	O
,	O
Tron	B-Language
was	O
the	O
first	O
film	O
by	O
a	O
major	O
producer	O
that	O
made	O
extensive	O
use	O
of	O
CGI	O
.	O
</s>
<s>
The	O
standard	O
operating	B-General_Concept
system	I-General_Concept
for	O
the	O
7/32	O
and	O
8/32	O
was	O
Interdata	B-Device
's	O
OS/32	O
.	O
</s>
<s>
At	O
MIT	O
,	O
by	O
1976	O
,	O
Interdata	B-Device
(	O
Perkin-Elmer	O
)	O
computers	O
were	O
being	O
used	O
by	O
the	O
Architecture	O
Machine	O
Group	O
and	O
Joint	O
Computer	O
Facility	O
at	O
MIT	O
,	O
using	O
the	O
FORTRAN	B-Application
and	O
PL/1	B-Language
programming	I-Language
languages	I-Language
.	O
</s>
<s>
Unix	O
was	O
ported	O
to	O
the	O
platform	O
in	O
1977	O
by	O
two	O
groups	O
,	O
working	O
independently	O
;	O
to	O
the	O
7/32	O
at	O
Wollongong	O
University	O
,	O
and	O
to	O
the	O
8/32	O
at	O
Bell	O
Labs	O
,	O
making	O
the	O
32-bit	O
Interdata	B-Device
machines	O
the	O
first	O
non-PDP	O
computers	O
to	O
run	O
Unix	O
.	O
</s>
<s>
Bell	O
chose	O
the	O
8/32	O
for	O
their	O
port	O
because	O
it	O
was	O
as	O
different	O
from	O
the	O
DEC	B-Device
PDP-11	I-Device
as	O
possible	O
.	O
</s>
<s>
By	O
1979	O
researchers	O
at	O
the	O
Architecture	O
Machine	O
Group	O
created	O
an	O
operating	B-General_Concept
system	I-General_Concept
modeled	O
on	O
Multics	O
called	O
Magic	O
6	O
,	O
which	O
featured	O
the	O
Multics	O
concepts	O
of	O
pages	O
,	O
segments	O
and	O
dynamic	O
linking	O
,	O
but	O
had	O
no	O
security	O
checks	O
.	O
</s>
<s>
The	O
success	O
of	O
the	O
Interdata	B-Device
32-bit	O
minis	O
in	O
these	O
markets	O
made	O
the	O
company	O
attractive	O
to	O
Perkin-Elmer	O
Corporation	O
,	O
a	O
large	O
,	O
Norwalk	O
,	O
Connecticut-based	O
scientific	O
instruments	O
and	O
optics	O
manufacturer	O
with	O
a	O
large	O
presence	O
in	O
the	O
defense	O
and	O
aerospace	O
industries	O
.	O
</s>
<s>
Interdata	B-Device
was	O
acquired	O
by	O
Perkin-Elmer	O
in	O
1973	O
,	O
and	O
brought	O
under	O
the	O
corporate	O
name	O
in	O
1976	O
as	O
the	O
Computer	O
Systems	O
Division	O
(	O
CSD	O
)	O
,	O
one	O
of	O
several	O
divisions	O
in	O
P-E	O
'	O
s	O
newly	O
formed	O
Data	O
Systems	O
Group	O
(	O
DSG	O
)	O
.	O
</s>
<s>
SIMH	B-Application
,	O
the	O
historical	O
computer	O
simulator	B-Application
project	O
,	O
includes	O
simulators	O
for	O
both	O
the	O
Interdata	B-Device
32	O
bit	O
(	O
7/32	O
and	O
8/32	O
)	O
and	O
their	O
16	O
bit	O
minicomputers	B-Architecture
.	O
</s>
