<s>
The	O
IBM	B-Device
7302	I-Device
Core	O
Storage	O
unit	O
was	O
designed	O
in	O
1957	O
–	O
1958	O
for	O
the	O
IBM	B-Device
7030	I-Device
(	O
Stretch	O
)	O
.	O
</s>
<s>
The	O
IBM	B-Device
7030	I-Device
could	O
use	O
from	O
one	O
to	O
sixteen	O
IBM	B-Device
7302s	I-Device
(	O
typically	O
six	O
)	O
;	O
either	O
individually	O
or	O
in	O
interleaved	O
groups	O
of	O
two	O
or	O
four	O
.	O
</s>
<s>
The	O
IBM	B-Device
7090	I-Device
also	O
used	O
one	O
IBM	B-Device
7302	I-Device
.	O
</s>
<s>
The	O
IBM	B-Device
7094	I-Device
used	O
one	O
IBM	O
7302A	O
.	O
</s>
<s>
The	O
IBM	B-Device
7094	I-Device
II	I-Device
used	O
one	O
IBM	B-Device
7302	I-Device
,	O
but	O
it	O
was	O
a	O
new	O
model	O
unique	O
to	O
the	O
IBM	B-Device
7094	I-Device
II	I-Device
.	O
</s>
<s>
The	O
IBM	B-Device
7080	I-Device
also	O
used	O
one	O
decimal	O
model	O
IBM	B-Device
7302	I-Device
with	O
a	O
different	O
core	O
stack	O
than	O
used	O
in	O
the	O
binary	O
models	O
.	O
</s>
<s>
The	O
core	B-General_Concept
memory	I-General_Concept
in	O
the	O
IBM	B-Device
7302	I-Device
was	O
heated/cooled	O
to	O
stabilize	O
its	O
operating	O
characteristics	O
.	O
</s>
<s>
The	O
use	O
of	O
smaller	O
cores	O
in	O
the	O
IBM	O
7302A	O
allowed	O
the	O
cycle	O
time	O
to	O
be	O
reduced	O
to	O
2.0μs	O
for	O
the	O
IBM	B-Device
7094	I-Device
.	O
</s>
<s>
The	O
use	O
of	O
even	O
smaller	O
cores	O
in	O
the	O
IBM	B-Device
7302	I-Device
Model	O
3	O
allowed	O
the	O
cycle	O
time	O
to	O
be	O
reduced	O
to	O
1.4μs	O
for	O
the	O
IBM	B-Device
7094	I-Device
II	I-Device
.	O
</s>
<s>
The	O
IBM	B-Device
7030	I-Device
used	O
this	O
as	O
16,384	O
64-bit	O
words	O
and	O
an	O
8-bit	O
ECC	O
.	O
</s>
<s>
The	O
IBM	B-Device
7090	I-Device
used	O
this	O
as	O
32,768	O
36-bit	O
words	O
.	O
</s>
<s>
The	O
IBM	B-Device
7094	I-Device
used	O
this	O
as	O
32,768	O
36-bit	O
words	O
.	O
</s>
<s>
The	O
IBM	B-Device
7030	I-Device
used	O
this	O
as	O
8,192	O
64-bit	O
words	O
and	O
an	O
8-bit	O
ECC	O
.	O
</s>
<s>
The	O
IBM	B-Device
7094	I-Device
II	I-Device
used	O
this	O
as	O
32,768	O
36-bit	O
words	O
.	O
</s>
<s>
The	O
IBM	B-Device
7080	I-Device
used	O
this	O
as	O
160,000	O
7-bit	O
characters	O
;	O
CBA8421	O
.	O
</s>
<s>
The	O
IBM	B-Device
7080	I-Device
used	O
this	O
as	O
80,000	O
7-bit	O
characters	O
;	O
CBA8421	O
.	O
</s>
