<s>
D2	B-Device
was	O
a	O
concept	O
and	O
prototype	O
computer	O
designed	O
by	O
Datasaab	O
in	O
Linköping	O
,	O
Sweden	O
.	O
</s>
<s>
It	O
was	O
built	O
with	O
discrete	O
transistors	B-Application
and	O
completed	O
in	O
1960	O
.	O
</s>
<s>
This	O
military	O
side	O
of	O
the	O
project	O
was	O
known	O
as	O
SANK	O
,	O
or	O
Saabs	O
Automatiska	O
Navigations-Kalkylator	O
(	O
Saab	O
's	O
Automatic	O
Navigational-Calculator	O
)	O
,	O
and	O
D2	B-Device
was	O
the	O
name	O
for	O
its	O
civilian	O
application	O
.	O
</s>
<s>
The	O
D2	B-Device
weighed	O
approximately	O
200kg	O
,	O
and	O
could	O
be	O
placed	O
on	O
a	O
desktop	O
.	O
</s>
<s>
Experience	O
from	O
the	O
D2	B-Device
prototype	O
was	O
the	O
foundation	O
for	O
Datasaab	O
's	O
continued	O
development	O
both	O
of	O
the	O
civilian	O
D21	O
computer	O
and	O
military	O
aircraft	O
models	O
.	O
</s>
<s>
Otherwise	O
it	O
was	O
close	O
to	O
the	O
D2	B-Device
prototype	O
,	O
while	O
a	O
working	O
airborne	O
computer	O
required	O
a	O
lot	O
more	O
miniaturization	O
.	O
</s>
<s>
The	O
D2	B-Device
is	O
on	O
exhibit	O
at	O
IT-ceum	O
,	O
the	O
computer	O
museum	O
in	O
Linköping	O
,	O
Sweden	O
.	O
</s>
