<s>
The	O
Texas	O
Instruments	O
Business	O
Analyst	O
series	O
is	O
a	O
product	O
line	O
of	O
financial	B-General_Concept
calculators	I-General_Concept
introduced	O
in	O
1976	O
.	O
</s>
<s>
The	O
BA	O
series	O
competes	O
directly	O
with	O
other	O
mid	O
-	O
to	O
high-end	O
financial	B-General_Concept
calculators	I-General_Concept
,	O
particularly	O
the	O
HP-12C	B-Device
and	O
other	O
models	O
from	O
TI	O
competitor	O
Hewlett-Packard	O
.	O
</s>
<s>
There	O
are	O
two	O
models	O
in	O
the	O
product	O
line	O
:	O
the	O
BA	B-Device
II	I-Device
Plus	I-Device
(	O
originally	O
introduced	O
in	O
1991	O
)	O
and	O
the	O
BA	B-Device
II	I-Device
Plus	I-Device
Professional	O
(	O
introduced	O
in	O
2004	O
)	O
.	O
</s>
<s>
The	O
BA	B-Device
II	I-Device
Plus	I-Device
is	O
the	O
main	O
financial	B-General_Concept
calculator	I-General_Concept
sold	O
by	O
Texas	O
Instruments	O
as	O
of	O
2015	O
.	O
</s>
<s>
The	O
BA	B-Device
II	I-Device
Plus	I-Device
Professional	O
is	O
an	O
upgrade	O
to	O
the	O
base	O
model	O
introduced	O
in	O
2004	O
,	O
including	O
several	O
additional	O
worksheet	O
functions	O
such	O
as	O
net	O
future	O
value	O
and	O
modified	O
internal	O
rate	O
of	O
return	O
.	O
</s>
<s>
Several	O
companies	O
,	O
most	O
notably	O
Texas	O
Instruments	O
itself	O
,	O
have	O
released	O
emulators	O
of	O
the	O
BA	B-Device
II	I-Device
Plus	I-Device
for	O
various	O
mobile	O
operating	O
systems	O
.	O
</s>
<s>
In	O
addition	O
,	O
Stokes	O
Publishing	O
formerly	O
sold	O
The	O
Educator	O
Business	O
,	O
a	O
calculator	O
designed	O
for	O
use	O
on	O
overhead	B-Device
projectors	I-Device
that	O
emulated	O
the	O
BA	B-Device
II	I-Device
Plus	I-Device
.	O
</s>
