<s>
The	O
Nicolet	B-Device
1080	I-Device
computer	O
was	O
the	O
successor	O
of	O
the	O
Nicolet	O
1070/PDP	O
-8	O
computer	O
,	O
released	O
in	O
1971	O
by	O
Nicolet	O
Instrument	O
Corporation	O
,	O
which	O
operated	O
between	O
1966	O
and	O
1992	O
in	O
Madison	O
,	O
Wisconsin	O
.	O
</s>
<s>
Computer	O
clock	O
frequency	O
was	O
2MHz	O
,	O
and	O
some	O
complex	O
functions	O
like	O
multiplication	O
and	O
division	O
between	O
20	O
and	O
40	O
bits	O
registers	O
could	O
be	O
performed	O
in	O
one	O
instruction	O
cycle	O
thanks	O
to	O
the	O
complexity	O
of	O
the	O
arithmetic	O
module	O
,	O
in	O
a	O
similar	O
way	O
to	O
the	O
more	O
recent	O
ALUs	B-General_Concept
.	O
</s>
<s>
The	O
NIC	O
1080	O
had	O
an	O
instruction	O
called	O
BITINV	O
to	O
reverse	O
bits	O
in	O
the	O
accumulator	B-General_Concept
,	O
swapping	O
the	O
most	O
significant	O
bit	O
with	O
the	O
least	O
significant	O
and	O
so	O
on	O
.	O
</s>
<s>
The	O
Nicolet	B-Device
1080	I-Device
's	O
main	O
memory	O
was	O
a	O
magnetic-core	O
memory	O
,	O
with	O
1	O
to	O
10	O
modules	O
with	O
4K	O
20-bit	O
words	O
per	O
module	O
,	O
for	O
a	O
maximum	O
of	O
40K	O
words	O
.	O
</s>
<s>
This	O
would	O
be	O
,	O
in	O
modern	O
terms	O
,	O
between	O
10	O
and	O
100	O
kilobytes	O
of	O
memory	O
(	O
8	O
bits/byte	O
)	O
.	O
</s>
<s>
The	O
computer	O
included	O
a	O
Teletype	B-Application
Model	I-Application
33	I-Application
ASR	O
,	O
used	O
for	O
entering	O
or	O
modifying	O
programs	O
,	O
as	O
well	O
as	O
reading	O
memory	O
contents	O
.	O
</s>
<s>
The	O
front	O
panel	O
had	O
three	O
rows	O
of	O
red	O
LEDs	O
,	O
displaying	O
the	O
contents	O
of	O
the	O
accumulator	B-General_Concept
,	O
instruction	B-General_Concept
register	I-General_Concept
,	O
and	O
program	B-General_Concept
counter	I-General_Concept
(	O
PC	O
)	O
.	O
</s>
<s>
Some	O
of	O
the	O
Nicolet	B-Device
1080	I-Device
computers	O
were	O
sold	O
as	O
part	O
of	O
Bruker	O
NMR	O
Spectrometers	O
,	O
and	O
hence	O
labeled	O
BNC	O
12	O
.	O
</s>
