<s>
The	O
Reeves	B-Device
Electronic	I-Device
Analog	I-Device
Computer	I-Device
(	O
commonly	O
shortened	O
REAC	O
)	O
was	O
a	O
family	O
of	O
early	O
analog	O
computers	O
produced	O
in	O
the	O
United	O
States	O
by	O
Reeves	O
Instrument	O
Corporation	O
from	O
the	O
1940s	O
through	O
the	O
1960s	O
.	O
</s>
<s>
The	O
original	O
proposal	O
was	O
to	O
build	O
a	O
machine	O
called	O
the	O
REEVAC	O
,	O
which	O
was	O
to	O
have	O
been	O
based	O
on	O
the	O
design	O
of	O
the	O
EDVAC	B-Device
machine	O
,	O
which	O
Lubkin	O
had	O
also	O
done	O
design	O
work	O
on	O
.	O
</s>
<s>
The	O
average	O
runtime	B-Library
for	O
single	O
problem	O
was	O
about	O
one	O
minute	O
.	O
</s>
