<s>
The	O
HP-10B	O
(	O
F1636A	O
)	O
is	O
a	O
student	O
business	B-General_Concept
calculator	I-General_Concept
introduced	O
in	O
1987	O
.	O
</s>
<s>
The	O
model	O
of	O
this	O
calculator	O
proved	O
to	O
compete	O
well	O
with	O
the	O
higher	O
end	O
RPN	O
HP-12C	B-Device
.	O
</s>
<s>
Two	O
versions	O
of	O
the	O
10B	O
were	O
produced	O
,	O
the	O
first	O
version	O
came	O
with	O
orange	O
lettering	O
around	O
the	O
keys	O
and	O
used	O
an	O
1LU7	O
HP	B-Application
Saturn	I-Application
processor	O
,	O
the	O
later	O
model	O
(	O
in	O
2000	O
)	O
with	O
teal-green	O
labels	O
.	O
</s>
