<s>
The	O
TI-84	B-Device
Plus	I-Device
is	O
a	O
graphing	B-Application
calculator	I-Application
made	O
by	O
Texas	O
Instruments	O
which	O
was	O
released	O
in	O
early	O
2004	O
.	O
</s>
<s>
There	O
is	O
no	O
original	O
TI-84	O
,	O
only	O
the	O
TI-84	B-Device
Plus	I-Device
,	O
the	O
TI-84	B-Device
Plus	I-Device
Silver	I-Device
Edition	I-Device
models	O
,	O
and	O
the	O
TI-84	B-Device
Plus	I-Device
CE	O
.	O
</s>
<s>
The	O
TI-84	B-Device
Plus	I-Device
is	O
an	O
enhanced	O
version	O
of	O
the	O
TI-83	B-Device
Plus	I-Device
.	O
</s>
<s>
The	O
archive	O
(	O
ROM	B-Device
)	O
is	O
about	O
3	O
times	O
as	O
large	O
,	O
and	O
the	O
CPU	B-General_Concept
is	O
about	O
2.5	O
times	O
as	O
fast	O
(	O
over	O
the	O
TI-83	B-Device
and	O
TI-83	B-Device
Plus	I-Device
)	O
.	O
</s>
<s>
A	O
USB	B-Protocol
port	O
and	O
built-in	O
clock	O
functionality	O
were	O
also	O
added	O
.	O
</s>
<s>
The	O
USB	B-Protocol
port	O
on	O
the	O
TI-84	B-Device
Plus	I-Device
series	O
is	O
USB	B-Protocol
On-The-Go	O
compliant	O
,	O
similar	O
to	O
the	O
next	O
generation	O
TI-Nspire	B-Device
calculator	O
,	O
which	O
supports	O
connecting	O
to	O
USB	B-Protocol
based	O
data	O
collection	O
devices	O
and	O
probes	O
,	O
and	O
supports	O
device	O
to	O
device	O
transfers	O
over	O
USB	B-Protocol
rather	O
than	O
over	O
the	O
serial	O
link	O
port	O
.	O
</s>
<s>
The	O
TI-84	B-Device
Plus	I-Device
Silver	I-Device
Edition	I-Device
was	O
released	O
in	O
2004	O
as	O
an	O
upgrade	O
to	O
the	O
TI-83	B-Device
Plus	I-Device
.	O
</s>
<s>
Like	O
the	O
TI-83	B-Device
Plus	I-Device
Silver	I-Device
Edition	I-Device
,	O
it	O
features	O
a	O
15MHz	O
Zilog	B-General_Concept
Z80	I-General_Concept
processor	O
and	O
24kB	O
of	O
user-available	O
RAM	B-Architecture
.	O
</s>
<s>
The	O
chip	O
has	O
128	O
kB	O
,	O
but	O
Texas	O
Instruments	O
has	O
not	O
made	O
an	O
OS	B-General_Concept
that	O
uses	O
all	O
of	O
it	O
.	O
</s>
<s>
Newer	O
calculators	O
have	O
a	O
RAM	B-Architecture
chip	I-Architecture
that	O
has	O
only	O
48	O
kB	O
.	O
</s>
<s>
All	O
calculators	O
with	O
the	O
letter	O
H	O
or	O
later	O
as	O
the	O
last	O
letter	O
in	O
the	O
serial	O
code	O
have	O
fewer	O
RAM	B-Architecture
pages	O
,	O
causing	O
some	O
programs	O
to	O
not	O
run	O
correctly	O
.	O
</s>
<s>
There	O
is	O
1.5	O
MB	O
of	O
user-accessible	O
Flash	B-Device
ROM	I-Device
.	O
</s>
<s>
Like	O
the	O
standard	O
TI-84	B-Device
Plus	I-Device
,	O
the	O
Silver	O
Edition	O
includes	O
a	O
built-in	O
USB	B-Protocol
port	O
,	O
a	O
built-in	O
clock	O
,	O
and	O
assembly	B-Language
support	O
.	O
</s>
<s>
It	O
uses	O
4	O
AAA	B-Algorithm
batteries	I-Algorithm
and	O
a	O
backup	B-Algorithm
button	B-Algorithm
cell	I-Algorithm
battery	O
.	O
</s>
<s>
The	O
TI-84	B-Device
Plus	I-Device
Silver	I-Device
Edition	I-Device
comes	O
preloaded	O
with	O
a	O
variety	O
of	O
applications	O
.	O
</s>
<s>
These	O
programs	O
are	O
also	O
available	O
for	O
the	O
TI-84	B-Device
Plus	I-Device
,	O
but	O
some	O
must	O
be	O
downloaded	O
separately	O
from	O
TI	O
's	O
website	O
.	O
</s>
<s>
TI	O
offers	O
a	O
special	O
yellow	O
version	O
of	O
the	O
TI-84	B-Device
Plus	I-Device
,	O
inscribed	O
with	O
the	O
words	O
"	O
School	O
Property	O
"	O
,	O
for	O
schools	O
to	O
loan	O
out	O
to	O
students	O
.	O
</s>
<s>
In	O
2011	O
,	O
TI	O
launched	O
the	O
TI-84	O
Pocket.fr,	O
a	O
miniaturized	O
version	O
of	O
the	O
TI-84	B-Device
Plus	I-Device
for	O
the	O
French	O
market	O
.	O
</s>
<s>
In	O
2012	O
,	O
TI	O
launched	O
the	O
TI-84	B-Device
Plus	I-Device
Pocket	O
SE	O
,	O
a	O
miniaturized	O
version	O
of	O
the	O
TI-84	B-Device
Plus	I-Device
Silver	I-Device
Edition	I-Device
for	O
the	O
Asian	O
market	O
.	O
</s>
<s>
In	O
2015	O
,	O
Texas	O
Instruments	O
released	O
the	O
TI-84	B-Device
Plus	I-Device
T	O
in	O
the	O
Netherlands	O
.	O
</s>
<s>
This	O
model	O
is	O
very	O
similar	O
to	O
the	O
original	O
TI-84	B-Device
Plus	I-Device
,	O
but	O
features	O
an	O
LED	O
to	O
indicate	O
whether	O
or	O
not	O
the	O
calculator	O
is	O
in	O
Exam	O
Mode	O
.	O
</s>
<s>
The	O
hardware	O
of	O
the	O
TI-84	B-Device
Plus	I-Device
T	O
is	O
similar	O
to	O
the	O
TI-84	B-Device
Plus	I-Device
Silver	I-Device
Edition	I-Device
,	O
with	O
ninety-six	O
16	O
kB	O
pages	O
of	O
archive	O
memory	O
,	O
for	O
a	O
total	O
of	O
1540	O
kB	O
.	O
</s>
<s>
However	O
,	O
unlike	O
the	O
TI-84	B-Device
Plus	I-Device
,	O
the	O
TI-84	B-Device
Plus	I-Device
T	O
does	O
not	O
allow	O
users	O
to	O
execute	O
assembly	B-Language
programs	O
.	O
</s>
<s>
The	O
TI-84	B-Device
Plus	I-Device
T	O
has	O
2	O
different	O
Exam	O
Modes	O
available	O
with	O
different	O
levels	O
of	O
restrictiveness	O
.	O
</s>
<s>
The	O
TI-84	B-Device
Plus	I-Device
C	B-Language
Silver	O
Edition	O
was	O
released	O
in	O
2013	O
as	O
the	O
first	O
Z80-based	O
Texas	O
Instruments	O
graphing	B-Application
calculator	I-Application
with	O
a	O
color	O
screen	O
.	O
</s>
<s>
It	O
had	O
a	O
320x240-pixel	O
full-color	O
screen	O
,	O
a	O
modified	O
version	O
of	O
the	O
TI-84	B-Device
Plus	I-Device
's	O
2.55MP	O
operating	B-General_Concept
system	I-General_Concept
,	O
a	O
removable	O
1200	O
mAh	O
rechargeable	O
lithium-ion	O
battery	O
,	O
and	O
keystroke	O
compatibility	O
with	O
existing	O
math	O
and	O
programming	B-General_Concept
tools	O
.	O
</s>
<s>
It	O
had	O
the	O
standard	O
2.5	O
mm	O
I/O	B-General_Concept
(	O
DBUS	O
)	O
port	O
and	O
a	O
mini-USB	O
port	O
for	O
connectivity	O
and	O
charging	O
.	O
</s>
<s>
The	O
calculator	O
was	O
praised	O
for	O
its	O
high-resolution	O
(	O
relative	O
to	O
contemporary	O
graphing	B-Application
calculators	I-Application
)	O
color	O
screen	O
,	O
which	O
allowed	O
new	O
pedagogical	O
approaches	O
such	O
as	O
graphing	O
multiple	O
functions	O
together	O
in	O
different	O
colors	O
.	O
</s>
<s>
It	O
was	O
widely	O
criticized	O
for	O
its	O
slow	O
performance	O
by	O
educators	O
and	O
hobbyists/hackers	O
alike	O
;	O
the	O
performance	O
was	O
attributed	O
to	O
the	O
calculator	O
retaining	O
its	O
monochrome	O
predecessors	O
 '	O
CPU	B-General_Concept
to	O
drive	O
a	O
screen	O
displaying	O
300	O
times	O
as	O
much	O
image	O
information	O
.	O
</s>
<s>
Nonetheless	O
it	O
demonstrated	O
the	O
value	O
of	O
a	O
color-screen	O
TI-84	O
Plus-family	O
calculator	O
and	O
was	O
superseded	O
two	O
years	O
later	O
by	O
the	O
TI-84	B-Device
Plus	I-Device
CE	O
which	O
was	O
embraced	O
by	O
the	O
calculator	O
hobbyist	O
community	O
.	O
</s>
<s>
Notable	O
third-party	O
milestones	O
included	O
overclocking	O
the	O
device	O
from	O
15MHz	O
to	O
22MHz	O
and	O
the	O
third-party	O
Doors	O
CS	B-Language
shell	O
.	O
</s>
<s>
The	O
TI-84	B-Device
Plus	I-Device
CE	O
was	O
publicly	O
previewed	O
by	O
TI	O
Education	O
in	O
January	O
2015	O
and	O
released	O
in	O
2015	O
.	O
</s>
<s>
The	O
calculator	O
retains	O
the	O
320x240-pixel	O
color	O
screen	O
,	O
rechargeable	O
battery	O
,	O
and	O
key	O
layout	O
of	O
the	O
TI-84	B-Device
Plus	I-Device
C	B-Language
Silver	O
Edition	O
,	O
while	O
removing	O
the	O
2.5mm	O
I/O	B-General_Concept
(	O
"	O
DBUS	O
"	O
)	O
linkport	O
and	O
moving	O
the	O
USB	B-Protocol
port	O
and	O
charging	O
LED	O
to	O
the	O
right	O
side	O
of	O
the	O
handheld	O
.	O
</s>
<s>
The	O
calculator	O
's	O
OS	B-General_Concept
5.x	O
is	O
incompatible	O
with	O
the	O
TI-84	B-Device
Plus	I-Device
C	B-Language
Silver	O
Edition	O
's	O
hardware	O
.	O
</s>
<s>
The	O
calculator	O
has	O
154KB	O
of	O
user-accessible	O
RAM	B-Architecture
and	O
3.0MB	O
of	O
Archive	O
memory	O
.	O
</s>
<s>
It	O
uses	O
the	O
eZ80	B-Device
processor	O
from	O
Zilog	O
,	O
making	O
all	O
Z80	B-General_Concept
assembly	B-Language
programs	O
from	O
the	O
previous	O
TI-84	B-Device
Plus	I-Device
series	O
calculators	O
incompatible	O
.	O
</s>
<s>
Like	O
the	O
rest	O
of	O
the	O
TI-84	B-Device
Plus	I-Device
series	O
,	O
certain	O
countries	O
permit	O
its	O
use	O
in	O
examinations	O
.	O
</s>
<s>
In	O
2016	O
,	O
the	O
TI-84	B-Device
Plus	I-Device
CE-T	O
was	O
released	O
for	O
the	O
European	O
educational	O
market	O
.	O
</s>
<s>
CE	O
calculators	O
revision	O
M	O
and	O
later	O
(	O
manufactured	O
on	O
and	O
after	O
April	O
2019	O
)	O
contain	O
an	O
improved	O
architecture	O
,	O
with	O
caching	O
with	O
a	O
more	O
recent	O
flash	B-Device
chip	I-Device
(	O
Winbond	O
25Q32JVSIQ	O
)	O
than	O
on	O
previous	O
revisions	O
,	O
which	O
contained	O
a	O
Winbond	O
W29GL032C	O
.	O
</s>
<s>
In	O
2020	O
,	O
TI	O
Education	O
announced	O
its	O
decision	O
to	O
remove	O
support	O
for	O
assembly	B-Language
and	O
C	B-Language
programming	I-Language
on	O
these	O
calculators	O
in	O
response	O
to	O
a	O
video	O
posted	O
on	O
YouTube	O
detailing	O
how	O
to	O
bypass	O
the	O
test	O
mode	O
on	O
OS	B-General_Concept
version	O
5.2.2	O
.	O
</s>
<s>
The	O
changes	O
are	O
reflected	O
in	O
OS	B-General_Concept
version	O
5.5.1	O
for	O
the	O
European	O
models	O
and	O
OS	B-General_Concept
version	O
5.6	O
for	O
the	O
US	O
models	O
.	O
</s>
<s>
Currently	O
,	O
an	O
exploit	O
called	O
ArTIfiCE	O
has	O
been	O
released	O
that	O
allows	O
for	O
native	B-Language
code	I-Language
execution	O
through	O
a	O
bug	O
in	O
the	O
CabriJR	O
app	O
.	O
</s>
<s>
The	O
TI-84	B-Device
Plus	I-Device
CE-T	O
Python	B-Language
Edition	O
was	O
released	O
in	O
2021	O
and	O
provides	O
OS	B-General_Concept
version	O
5.6	O
and	O
above	O
with	O
the	O
ability	O
to	O
program	B-Application
the	O
calculator	O
in	O
Python	B-Language
and	O
includes	O
a	O
preloaded	O
bundle	O
of	O
applications	O
.	O
</s>
<s>
The	O
Python	B-Language
implementation	O
is	O
extremely	O
slow	O
compared	O
to	O
NumWorks	B-Device
and	O
HP	O
calculators	O
due	O
to	O
the	O
use	O
of	O
an	O
ARM	O
coprocessor	O
running	O
CircuitPython	B-Device
,	O
which	O
communicates	O
to	O
the	O
calculator	O
via	O
115200	O
baud	O
UART	O
serial.In	O
the	O
North	O
American	O
market	O
,	O
the	O
TI-84	B-Device
Plus	I-Device
CE	O
Python	B-Language
replaced	O
the	O
existing	O
TI-84	B-Device
Plus	I-Device
CE	O
in	O
2021	O
.	O
</s>
<s>
There	O
are	O
three	O
different	O
types	O
of	O
programs	O
which	O
can	O
be	O
downloaded	O
or	O
programmed	O
into	O
the	O
calculators	O
:	O
TI-BASIC	B-Language
,	O
Z80	B-General_Concept
assembly	B-Language
language	I-Language
,	O
and	O
Flash	O
applications	O
(	O
also	O
written	O
in	O
Z80	B-General_Concept
assembly	B-Language
)	O
.	O
</s>
<s>
The	O
TI-84	B-Device
Plus	I-Device
CE	O
is	O
different	O
in	O
that	O
programs	O
are	O
written	O
in	O
TI-BASIC	B-Language
,	O
eZ80	B-Device
assembly	B-Language
language	I-Language
,	O
or	O
in	O
the	O
C	B-Language
programming	I-Language
language	I-Language
.	O
</s>
<s>
In	O
addition	O
,	O
there	O
are	O
programs	O
available	O
that	O
are	O
able	O
to	O
compile	O
or	O
interpret	O
other	O
programming	B-General_Concept
languages	O
.	O
</s>
<s>
The	O
TI-84	B-Device
Plus	I-Device
CE-T	O
Python	B-Language
Edition	O
supports	O
the	O
Python	B-Language
programming	I-Language
language	I-Language
.	O
</s>
<s>
Also	O
,	O
there	O
are	O
several	O
languages	O
developed	O
by	O
community	O
members	O
for	O
the	O
calculators	O
,	O
notably	O
ICE	O
,	O
which	O
is	O
for	O
the	O
TI-84	B-Device
Plus	I-Device
CE	O
,	O
and	O
Axe	O
,	O
which	O
is	O
for	O
the	O
TI-84	B-Device
Plus	I-Device
and	O
TI-84	B-Device
Plus	I-Device
SE	O
.	O
</s>
<s>
The	O
TI-84	B-Device
Plus	I-Device
series	O
is	O
exactly	O
like	O
its	O
predecessor	O
in	O
that	O
it	O
can	O
be	O
used	O
on	O
the	O
SAT	O
and	O
ACT	O
examinations	O
as	O
well	O
as	O
International	O
Baccalaureate	O
examinations	O
.	O
</s>
<s>
When	O
OS	B-General_Concept
2.30	O
was	O
initially	O
released	O
,	O
users	O
noticed	O
the	O
speed	O
of	O
graphing	O
was	O
greatly	O
reduced	O
.	O
</s>
<s>
The	O
explanation	O
was	O
that	O
the	O
update	O
added	O
asymptote	B-Language
checking	O
in	O
graphing	O
.	O
</s>
<s>
In	O
January	O
2006	O
,	O
Texas	O
Instruments	O
released	O
v2.40	O
of	O
the	O
operating	B-General_Concept
system	I-General_Concept
for	O
the	O
TI-84	B-Device
Plus	I-Device
series	O
.	O
</s>
<s>
The	O
most	O
noticeable	O
addition	O
to	O
the	O
new	O
OS	B-General_Concept
was	O
the	O
"	O
Press-To-Test	O
"	O
feature	O
that	O
allowed	O
a	O
teacher	O
to	O
disable	O
any	O
programs	O
installed	O
on	O
the	O
calculator	O
,	O
so	O
they	O
cannot	O
be	O
used	O
on	O
tests	O
,	O
etc	O
.	O
</s>
<s>
As	O
of	O
OS	B-General_Concept
version	O
2.53MP	O
which	O
was	O
released	O
in	O
February	O
2010	O
,	O
support	O
was	O
added	O
for	O
prettyprinted	O
expressions	O
.	O
</s>
<s>
However	O
,	O
some	O
programs	O
stopped	O
working	O
correctly	O
in	O
this	O
OS	B-General_Concept
version	O
,	O
or	O
were	O
running	O
slower	O
.	O
</s>
<s>
The	O
current	O
OS	B-General_Concept
version	O
is	O
2.55MP	O
,	O
which	O
was	O
released	O
in	O
January	O
2011	O
.	O
</s>
<s>
In	O
July	O
2009	O
,	O
a	O
community-made	O
patch	O
was	O
released	O
which	O
allowed	O
user-made	O
operating	B-General_Concept
systems	I-General_Concept
to	O
be	O
easily	O
uploaded	O
onto	O
the	O
TI-84	B-Device
Plus	I-Device
series	O
.	O
</s>
<s>
Shortly	O
after	O
the	O
patch	O
was	O
developed	O
,	O
the	O
RSA	O
keys	O
for	O
the	O
calculator	O
's	O
operating	B-General_Concept
system	I-General_Concept
were	O
factored	O
via	O
the	O
General	B-Algorithm
number	I-Algorithm
field	I-Algorithm
sieve	I-Algorithm
(	O
GNFS	B-Algorithm
)	O
algorithm	O
,	O
making	O
a	O
software	O
patch	O
unnecessary	O
.	O
</s>
<s>
In	O
response	O
to	O
this	O
,	O
Texas	O
Instruments	O
released	O
a	O
newer	O
hardware	O
revision	O
which	O
only	O
accepts	O
other	O
,	O
stronger	O
RSA	O
keys	O
,	O
making	O
it	O
harder	O
to	O
load	O
user-made	O
operating	B-General_Concept
systems	I-General_Concept
or	O
older	O
TI	O
operating	B-General_Concept
systems	I-General_Concept
(	O
2.53MP	O
and	O
earlier	O
)	O
.	O
</s>
<s>
The	O
TI-84	B-Device
Plus	I-Device
CE-T	O
Python	B-Language
Edition	O
supports	O
using	O
CircuitPython	B-Device
,	O
a	O
Python	B-Language
3	O
variant	O
,	O
developed	O
by	O
Adafruit	O
.	O
</s>
<s>
CPU	B-General_Concept
:	O
Zilog	B-General_Concept
Z80	I-General_Concept
15MHz	O
,	O
with	O
a	O
6MHz	O
compatibility	O
mode	O
.	O
</s>
<s>
Flash	B-Device
ROM	I-Device
:	O
</s>
<s>
Display	B-Device
:	O
</s>
<s>
Plus	O
C/CE	O
:	O
320	O
×	O
240-pixel	O
screen	O
,	O
140	O
DPI	O
,	O
16-bit	O
color	O
.	O
</s>
<s>
Drawing	O
pixel	B-Algorithm
range	O
:	O
0-164	O
x	O
0-264	O
.	O
</s>
<s>
I/O	B-General_Concept
:	O
</s>
<s>
Integrated	O
programming	B-General_Concept
languages	O
:	O
TI-BASIC	B-Language
and	O
machine	B-Language
code	I-Language
.	O
</s>
<s>
Assembly	B-Language
requires	O
a	O
computer	O
with	O
a	O
Z80	B-General_Concept
assembler	B-Language
or	O
an	O
on-calc	O
assembler	B-Language
.	O
</s>
<s>
The	O
TI-84	B-Device
Plus	I-Device
is	O
based	O
heavily	O
on	O
its	O
predecessor	O
,	O
the	O
TI-83	B-Device
Plus	I-Device
.	O
</s>
<s>
As	O
with	O
all	O
other	O
calculators	O
in	O
the	O
series	O
,	O
the	O
TI-84	B-Device
Plus	I-Device
supports	O
native	O
Z80	B-General_Concept
assembly	B-Language
as	O
well	O
as	O
TI	O
's	O
interpreted	O
,	O
BASIC-like	O
language	O
for	O
calculators	O
,	O
dubbed	O
TI-BASIC	B-Language
.	O
</s>
<s>
Programming	B-General_Concept
for	O
the	O
TI-84	B-Device
Plus	I-Device
is	O
nearly	O
identical	O
to	O
programming	B-General_Concept
for	O
the	O
TI-83	B-Device
Plus	I-Device
,	O
with	O
a	O
few	O
new	O
functions	O
in	O
both	O
TI-BASIC	B-Language
and	O
the	O
calculator	O
's	O
assembly	B-Language
support	O
that	O
do	O
not	O
exist	O
on	O
earlier	O
models	O
and	O
OS	B-General_Concept
versions	O
.	O
</s>
<s>
Several	O
attempts	O
have	O
been	O
made	O
at	O
creating	O
a	O
C	B-Language
to	O
Zilog	B-General_Concept
Z80	I-General_Concept
assembly	B-Language
assembler	B-Language
,	O
such	O
as	O
SDCC	B-Application
.	O
</s>
<s>
The	O
TI-84	B-Device
Plus	I-Device
CE	O
series	O
can	O
be	O
programmed	O
in	O
TI-BASIC	B-Language
,	O
eZ80	B-Device
assembly	B-Language
,	O
or	O
with	O
the	O
C	B-Language
programming	I-Language
language	I-Language
.	O
</s>
<s>
To	O
aid	O
in	O
programming	B-General_Concept
,	O
a	O
USB	B-Protocol
keyboard	O
can	O
be	O
attached	O
to	O
the	O
TI-84	B-Device
Plus	I-Device
CE	O
via	O
a	O
USB	B-Protocol
On-The-Go	O
adapter	O
.	O
</s>
<s>
In	O
2021	O
,	O
the	O
TI-84	B-Device
Plus	I-Device
CE	O
Python	B-Language
Edition	O
was	O
released	O
,	O
which	O
supports	O
native	O
Python	B-Language
programming	I-Language
via	O
an	O
ARM	O
coprocessor	O
.	O
</s>
<s>
The	O
TI-84	B-Device
Plus	I-Device
series	O
calculators	O
 '	O
dialect	O
of	O
TI-BASIC	B-Language
is	O
the	O
same	O
as	O
that	O
of	O
the	O
TI-83	B-Device
Plus	I-Device
series	I-Device
,	O
but	O
with	O
a	O
few	O
more	O
commands	O
including	O
ones	O
for	O
date	O
and	O
time	O
.	O
</s>
<s>
On	O
May	O
20	O
,	O
2020	O
,	O
Texas	O
Instruments	O
revealed	O
that	O
support	O
of	O
assembly	B-Language
and	O
C	B-Language
applications	O
and	O
programming	B-General_Concept
would	O
be	O
removed	O
in	O
OS	B-General_Concept
version	O
5.5.1	O
and	O
5.6	O
for	O
the	O
TI-84	B-Device
Plus	I-Device
CE	O
and	O
TI-83	B-Device
Premium	O
CE	O
.	O
</s>
