<s>
The	O
TI-1031	B-Device
was	O
a	O
4	O
function	O
calculator	O
manufactured	O
by	O
Texas	O
Instruments	O
.	O
</s>
<s>
Introduced	O
in	O
1981	O
at	O
a	O
price	O
of	O
$12	O
(	O
)	O
,	O
the	O
calculator	O
had	O
a	O
liquid-crystal	B-Device
display	I-Device
,	O
weighed	O
1.9	O
ounces	O
,	O
and	O
contained	O
24	O
keys	O
.	O
</s>
