<s>
The	O
Remington	O
Rand	O
409	O
,	O
a	O
punched	B-Architecture
card	I-Architecture
calculator	O
which	O
was	O
programmed	O
with	O
a	O
plugboard	O
,	O
was	O
designed	O
in	O
1949	O
.	O
</s>
<s>
It	O
was	O
sold	O
in	O
two	O
models	O
:	O
the	O
UNIVAC	B-Device
60	I-Device
(	O
1952	O
)	O
and	O
the	O
UNIVAC	O
120	O
(	O
1953	O
)	O
.	O
</s>
<s>
The	O
model	O
number	O
referred	O
to	O
the	O
number	O
of	O
decimal	O
digits	O
it	O
could	O
read	O
from	O
each	O
punched	B-Architecture
card	I-Architecture
.	O
</s>
<s>
Digits	O
are	O
represented	O
in	O
bi-quinary	B-Algorithm
coded	I-Algorithm
decimal	I-Algorithm
.	O
</s>
