<s>
The	O
Oslo	B-Device
Analyzer	I-Device
(	O
1938	O
1954	O
)	O
was	O
a	O
mechanical	O
analog	O
differential	B-Device
analyzer	I-Device
,	O
a	O
type	O
of	O
computer	O
,	O
built	O
in	O
Norway	O
from	O
1938	O
to	O
1942	O
.	O
</s>
<s>
The	O
differential	B-Device
analyzer	I-Device
was	O
based	O
on	O
the	O
same	O
principles	O
as	O
the	O
pioneer	O
machine	O
developed	O
by	O
Vannevar	O
Bush	O
at	O
MIT	O
.	O
</s>
<s>
When	O
it	O
was	O
finished	O
,	O
the	O
Oslo	B-Device
Analyzer	I-Device
was	O
the	O
most	O
powerful	O
of	O
its	O
kind	O
in	O
the	O
world	O
.	O
</s>
