<s>
The	O
IBM	B-Device
702	I-Device
was	O
an	O
early	O
generation	O
tube-based	O
digital	O
computer	O
produced	O
by	O
IBM	O
in	O
the	O
early	O
to	O
mid-1950s	O
.	O
</s>
<s>
As	O
these	O
machines	O
were	O
aimed	O
at	O
the	O
business	O
market	O
,	O
they	O
lacked	O
the	O
leading-edge	O
computational	O
power	O
of	O
the	O
IBM	B-Device
701	I-Device
and	O
ERA	B-Device
1103	I-Device
,	O
which	O
were	O
favored	O
for	O
scientific	O
computing	O
,	O
weather	O
forecasting	O
,	O
the	O
aircraft	O
industry	O
,	O
and	O
the	O
military	O
and	O
intelligence	O
communities	O
.	O
</s>
<s>
It	O
was	O
superseded	O
by	O
the	O
IBM	B-Device
705	I-Device
.	O
</s>
<s>
Due	O
to	O
problems	O
with	O
the	O
Williams	B-General_Concept
tubes	I-General_Concept
,	O
the	O
decision	O
was	O
made	O
to	O
switch	O
to	O
magnetic-core	O
memory	O
instead	O
.	O
</s>
<s>
The	O
successor	O
to	O
the	O
702	O
in	O
the	O
700/7000	O
series	O
was	O
the	O
IBM	B-Device
705	I-Device
,	O
which	O
marked	O
the	O
transition	O
to	O
magnetic-core	O
memory	O
.	O
</s>
<s>
The	O
system	O
used	O
electrostatic	O
storage	O
,	O
consisting	O
of	O
14	O
,	O
28	O
,	O
42	O
,	O
56	O
,	O
or	O
70	O
Williams	B-General_Concept
tubes	I-General_Concept
with	O
a	O
capacity	O
of	O
1000	O
bits	O
each	O
for	O
the	O
main	O
memory	O
,	O
giving	O
a	O
memory	O
of	O
2,000	O
to	O
10,000	O
characters	O
of	O
seven	O
bits	O
each	O
(	O
in	O
increments	O
of	O
2,000	O
characters	O
)	O
,	O
and	O
14	O
Williams	B-General_Concept
tubes	I-General_Concept
with	O
a	O
capacity	O
of	O
512	O
bits	O
each	O
for	O
the	O
two	O
512-character	O
accumulators	O
.	O
</s>
