<s>
The	O
TI-92	B-Device
series	I-Device
of	O
graphing	B-Application
calculators	I-Application
are	O
a	O
line	O
of	O
calculators	O
produced	O
by	O
Texas	O
Instruments	O
.	O
</s>
<s>
They	O
include	O
:	O
the	O
TI-92	B-Device
(	O
1995	O
)	O
,	O
the	O
TI-92	B-Device
II	O
(	O
1996	O
)	O
,	O
the	O
TI-92	B-Device
Plus	I-Device
(	O
1998	O
,	O
1999	O
)	O
and	O
the	O
Voyage	O
200	O
(	O
2002	O
)	O
.	O
</s>
<s>
Because	O
of	O
this	O
keyboard	O
,	O
it	O
was	O
given	O
the	O
status	O
of	O
a	O
"	O
computer	O
"	O
rather	O
than	O
"	O
calculator	O
"	O
by	O
American	O
testing	O
facilities	O
and	O
cannot	O
be	O
used	O
on	O
tests	O
such	O
as	O
the	O
SAT	O
or	O
AP	O
Exams	O
while	O
the	O
similar	O
TI-89	B-Device
can	O
be	O
.	O
</s>
<s>
The	O
TI-92	B-Device
was	O
originally	O
released	O
in	O
1995	O
,	O
and	O
was	O
the	O
first	O
symbolic	O
calculator	O
made	O
by	O
Texas	O
Instruments	O
.	O
</s>
<s>
It	O
came	O
with	O
a	O
computer	B-General_Concept
algebra	I-General_Concept
system	I-General_Concept
(	O
CAS	O
)	O
based	O
on	O
Derive	B-Language
,	O
geometry	O
based	O
on	O
Cabri	B-Application
II	I-Application
,	O
and	O
was	O
one	O
of	O
the	O
first	O
calculators	O
to	O
offer	O
3D	O
graphing	B-Application
.	O
</s>
<s>
The	O
TI-92	B-Device
was	O
not	O
allowed	O
on	O
most	O
standardized	O
tests	O
due	O
mostly	O
to	O
its	O
QWERTY	O
keyboard	O
.	O
</s>
<s>
Its	O
larger	O
size	O
was	O
also	O
rather	O
cumbersome	O
compared	O
to	O
other	O
graphing	B-Application
calculators	I-Application
.	O
</s>
<s>
In	O
response	O
to	O
these	O
concerns	O
,	O
Texas	O
Instruments	O
introduced	O
the	O
TI-89	B-Device
which	O
is	O
functionally	O
similar	O
to	O
the	O
original	O
TI-92	B-Device
,	O
but	O
featured	O
Flash	B-Device
ROM	I-Device
and	O
188	O
KB	O
RAM	B-Architecture
,	O
and	O
a	O
smaller	O
design	O
without	O
the	O
QWERTY	O
keyboard	O
.	O
</s>
<s>
The	O
TI-92	B-Device
was	O
then	O
replaced	O
by	O
the	O
TI-92	B-Device
Plus	I-Device
,	O
which	O
was	O
essentially	O
a	O
TI-89	B-Device
with	O
the	O
larger	O
QWERTY	O
keyboard	O
design	O
of	O
the	O
TI-92	B-Device
.	O
</s>
<s>
Eventually	O
,	O
TI	O
released	O
the	O
Voyage	O
200	O
,	O
which	O
is	O
a	O
smaller	O
,	O
lighter	O
version	O
of	O
the	O
TI-92	B-Device
Plus	I-Device
with	O
more	O
Flash	B-Device
ROM	I-Device
.	O
</s>
<s>
The	O
TI-92	B-Device
is	O
no	O
longer	O
sold	O
through	O
TI	O
or	O
its	O
dealers	O
,	O
and	O
is	O
very	O
hard	O
to	O
come	O
by	O
in	O
stores	O
.	O
</s>
<s>
The	O
TI-92	B-Device
II	O
was	O
released	O
in	O
1996	O
,	O
and	O
was	O
the	O
first	O
successor	O
to	O
the	O
TI-92	B-Device
.	O
</s>
<s>
The	O
TI-92	B-Device
II	O
was	O
available	O
both	O
as	O
a	O
stand-alone	O
product	O
,	O
and	O
as	O
a	O
user-installable	O
II	O
module	O
which	O
could	O
be	O
added	O
to	O
original	O
TI-92	B-Device
units	O
to	O
gain	O
most	O
of	O
the	O
feature	O
improvements	O
.	O
</s>
<s>
The	O
TI-92	B-Device
II	O
module	O
was	O
introduced	O
early	O
in	O
1996	O
and	O
added	O
the	O
choice	O
of	O
5	O
user	O
languages	O
(	O
English	O
,	O
French	O
,	O
German	O
,	O
Italian	O
and	O
Spanish	O
)	O
and	O
an	O
additional	O
128k	O
User	O
memory	O
.	O
</s>
<s>
Along	O
with	O
the	O
TI-92	B-Device
,	O
the	O
TI-92	B-Device
II	O
was	O
replaced	O
by	O
the	O
TI-92	B-Device
Plus	I-Device
in	O
1999	O
,	O
which	O
offered	O
even	O
more	O
Flash	B-Device
ROM	I-Device
and	O
RAM	B-Architecture
.	O
</s>
<s>
The	O
TI-92	B-Device
Plus	I-Device
(	O
or	O
TI-92	B-Device
+	I-Device
)	O
was	O
released	O
in	O
1998	O
,	O
slightly	O
after	O
the	O
creation	O
of	O
the	O
almost-identical	O
(	O
in	O
terms	O
of	O
software	O
)	O
TI-89	B-Device
,	O
while	O
physically	O
looking	O
exactly	O
like	O
its	O
predecessor	O
,	O
the	O
TI-92	B-Device
(	O
which	O
lacked	O
flash	B-Device
memory	I-Device
)	O
.	O
</s>
<s>
Besides	O
increased	O
memory	O
over	O
its	O
predecessor	O
,	O
the	O
TI-92	B-Device
Plus	I-Device
also	O
featured	O
a	O
sharper	O
"	O
black	O
"	O
screen	O
,	O
which	O
had	O
first	O
appeared	O
on	O
the	O
TI-89	B-Device
and	O
which	O
eases	O
viewing	O
.	O
</s>
<s>
The	O
TI-92	B-Device
Plus	I-Device
was	O
available	O
both	O
as	O
a	O
stand-alone	O
product	O
,	O
and	O
as	O
a	O
user-installable	O
Plus	O
module	O
which	O
could	O
be	O
added	O
to	O
original	O
TI-92	B-Device
and	O
TI-92	B-Device
II	O
units	O
to	O
gain	O
most	O
of	O
the	O
feature	O
improvements	O
,	O
most	O
notably	O
Flash	B-Device
Memory	I-Device
.	O
</s>
<s>
A	O
stand-alone	O
TI-92	B-Device
Plus	I-Device
calculator	O
was	O
functionally	O
similar	O
to	O
the	O
HW2	O
TI-89	B-Device
,	O
while	O
a	O
module-upgraded	O
TI-92	B-Device
was	O
functionally	O
similar	O
to	O
the	O
HW1	O
TI-89	B-Device
.	O
</s>
<s>
As	O
of	O
2002	O
,	O
the	O
TI-92	B-Device
Plus	I-Device
was	O
succeeded	O
by	O
the	O
Voyage	O
200	O
and	O
is	O
no	O
longer	O
sold	O
through	O
TI	O
or	O
its	O
dealers	O
.	O
</s>
<s>
The	O
TI-92	B-Device
Plus	I-Device
is	O
now	O
available	O
in	O
an	O
online	O
emulator	O
,	O
featuring	O
a	O
list	O
of	O
frequently	O
used	O
commands	O
.	O
</s>
<s>
Voyage	O
200	O
(	O
also	O
V200	O
and	O
Voyage	O
200	O
PLT	O
)	O
was	O
released	O
in	O
2002	O
,	O
being	O
the	O
replacement	O
for	O
the	O
TI-92	B-Device
Plus	I-Device
,	O
with	O
its	O
only	O
hardware	O
upgrade	O
over	O
that	O
calculator	O
being	O
an	O
increase	O
in	O
the	O
amount	O
of	O
flash	B-Device
memory	I-Device
available	O
(	O
2.7	O
megabytes	O
for	O
the	O
Voyage	O
200	O
vs.	O
702	O
kilobytes	O
for	O
the	O
TI-92	B-Device
Plus	I-Device
)	O
.	O
</s>
<s>
Like	O
its	O
predecessor	O
,	O
Voyage	O
200	O
is	O
an	O
advanced	O
calculator	O
that	O
supports	O
plotting	O
multiple	O
functions	O
on	O
the	O
same	O
graph	O
,	O
parametric	O
,	O
polar	O
,	O
3D	O
,	O
and	O
differential	O
equation	O
graphing	B-Application
as	O
well	O
as	O
sequence	O
representations	O
.	O
</s>
<s>
Its	O
symbolic	O
calculation	O
system	O
is	O
based	O
on	O
a	O
trimmed	O
version	O
of	O
the	O
calculation	O
software	O
Derive	B-Language
.	O
</s>
<s>
In	O
addition	O
to	O
its	O
algebra	O
and	O
calculus	O
capabilities	O
,	O
the	O
Voyage	O
200	O
is	O
packaged	O
with	O
list	O
,	O
spreadsheet	O
,	O
and	O
data	O
processing	O
applications	O
and	O
can	O
perform	O
curve	B-Algorithm
fitting	I-Algorithm
to	O
a	O
number	O
of	O
standard	O
functions	O
and	O
other	O
statistical	O
analysis	O
operations	O
.	O
</s>
<s>
The	O
calculator	O
can	O
also	O
run	O
most	O
programs	O
written	O
for	O
the	O
TI-89	B-Device
and	O
TI-92	B-Device
as	O
well	O
as	O
programs	O
specifically	O
written	O
for	O
it	O
.	O
</s>
<s>
The	O
V200	O
is	O
easily	O
mistaken	O
for	O
a	O
PDA	B-Application
or	O
a	O
small	O
computer	O
because	O
of	O
its	O
massive	O
enclosure	O
and	O
its	O
full	O
QWERTY	O
keyboard	O
a	O
feature	O
which	O
disqualifies	O
the	O
calculator	O
for	O
use	O
in	O
many	O
tests	O
and	O
examinations	O
,	O
including	O
the	O
American	O
ACT	O
and	O
SAT	O
.	O
</s>
<s>
The	O
TI-89	B-Device
Titanium	O
offers	O
exactly	O
the	O
same	O
functionality	O
in	O
a	O
smaller	O
format	O
that	O
is	O
also	O
legal	O
on	O
the	O
SAT	O
test	O
,	O
but	O
not	O
the	O
ACT	O
test	O
.	O
</s>
<s>
Official	O
page	O
specifies	O
user-available	O
ROM	B-Device
amount	O
for	O
TI-92	B-Device
Plus	I-Device
as	O
702K	O
,	O
but	O
other	O
sources	O
specify	O
it	O
as	O
388K	O
.	O
</s>
<s>
This	O
is	O
due	O
to	O
the	O
TI-92	B-Device
Plus	I-Device
coming	O
with	O
Cabri	B-Application
Geometry	I-Application
pre-installed	O
,	O
which	O
uses	O
the	O
314	O
KB	O
difference	O
.	O
</s>
