<s>
The	O
ARRA	B-Device
(	O
for	O
"	O
Automatische	O
Relais	O
Rekenmachine	O
Amsterdam	O
"	O
,	O
Automatic	O
Relay	O
Calculator	O
Amsterdam	O
)	O
was	O
the	O
first	O
Dutch	O
computer	O
,	O
and	O
was	O
built	O
from	O
relays	O
for	O
the	O
Dutch	O
Mathematical	O
Centre	O
(	O
Dutch	O
:	O
Mathematisch	O
Centrum	O
)	O
,	O
which	O
later	O
became	O
the	O
Centrum	O
Wiskunde	O
&	O
Informatica	O
(	O
CWI	O
)	O
.	O
</s>
<s>
Because	O
of	O
reliability	O
problems	O
it	O
was	O
soon	O
taken	O
out	O
of	O
commission	O
,	O
and	O
"	O
updated	O
"	O
to	O
the	O
ARRA	B-Device
II	O
,	O
which	O
actually	O
was	O
a	O
completely	O
new	O
design	O
.	O
</s>
<s>
In	O
December	O
1953	O
,	O
electronic	O
ARRA	B-Device
II	O
performed	O
its	O
first	O
programs	O
and	O
was	O
completed	O
in	O
1954	O
.	O
</s>
