<s>
The	O
TI-Nspire	B-Device
is	O
a	O
graphing	B-Application
calculator	I-Application
line	O
made	O
by	O
Texas	O
Instruments	O
,	O
with	O
the	O
first	O
version	O
released	O
in	O
July	O
2007	O
.	O
</s>
<s>
The	O
calculators	O
feature	O
a	O
non-QWERTY	O
keyboard	O
and	O
a	O
different	O
key-by-key	O
layout	O
than	O
Texas	O
Instruments	O
's	O
previous	O
flagship	O
calculators	O
such	O
as	O
the	O
TI-89	B-Device
series	I-Device
.	O
</s>
<s>
The	O
original	O
TI-Nspire	B-Device
was	O
developed	O
out	O
of	O
the	O
TI	B-Application
PLT	I-Application
SHH1	I-Application
prototype	O
calculator	O
(	O
which	O
itself	O
was	O
derived	O
from	O
the	O
Casio	B-Device
ClassPad	I-Device
300	I-Device
)	O
,	O
the	O
TI-92	B-Device
series	I-Device
of	O
calculators	O
released	O
in	O
1995	O
,	O
and	O
the	O
TI-89	B-Device
series	I-Device
of	O
calculators	O
released	O
in	O
1998	O
.	O
</s>
<s>
In	O
2011	O
,	O
Texas	O
Instruments	O
released	O
the	O
CX	O
line	O
of	O
their	O
TI-Nspire	B-Device
calculators	O
which	O
effectively	O
replaced	O
the	O
previous	O
generation	O
.	O
</s>
<s>
The	O
updates	O
included	O
improvements	O
to	O
the	O
original	O
's	O
keyboard	O
layout	O
,	O
an	O
addition	O
of	O
a	O
rechargeable	O
lithium-ion	O
battery	O
,	O
3D	O
graphing	B-Application
capabilities	O
and	O
reduced	O
form	O
factor	O
.	O
</s>
<s>
In	O
2019	O
,	O
the	O
TI-Nspire	B-Device
CX	I-Device
II	O
was	O
added	O
,	O
with	O
a	O
boost	O
in	O
clock	O
speed	O
and	O
changes	O
to	O
the	O
existing	O
operating	O
system	O
.	O
</s>
<s>
The	O
TI-Nspire	B-Device
series	I-Device
uses	O
a	O
different	O
operating	O
system	O
compared	O
to	O
Texas	O
Instruments	O
 '	O
other	O
calculators	O
.	O
</s>
<s>
The	O
TI-Nspire	B-Device
includes	O
a	O
file	O
manager	O
that	O
lets	O
users	O
create	O
and	O
edit	O
documents	O
.	O
</s>
<s>
As	O
a	O
result	O
of	O
being	O
developed	O
from	O
PDA-esque	O
devices	O
,	O
the	O
TI-Nspire	B-Device
retains	O
many	O
of	O
the	O
same	O
functional	O
similarities	O
to	O
a	O
computer	O
.	O
</s>
<s>
The	O
standard	O
TI-Nspire	B-Device
calculator	O
is	O
comparable	O
to	O
the	O
TI-84	B-Device
Plus	I-Device
in	O
features	O
and	O
functionality	O
.	O
</s>
<s>
It	O
features	O
a	O
TI-84	O
mode	O
by	O
way	O
of	O
a	O
replaceable	O
snap-in	O
keypad	O
and	O
contains	O
a	O
TI-84	B-Device
Plus	I-Device
emulator	B-Application
.	O
</s>
<s>
The	O
likely	O
target	O
of	O
this	O
is	O
secondary	O
schools	O
that	O
make	O
use	O
of	O
the	O
TI-84	B-Device
Plus	I-Device
currently	O
or	O
have	O
textbooks	O
that	O
cover	O
the	O
TI-83	B-Device
(	O
Plus	O
)	O
and	O
TI-84	B-Device
Plus	I-Device
lines	O
,	O
and	O
to	O
allow	O
them	O
to	O
transition	O
to	O
the	O
TI-Nspire	B-Device
line	O
more	O
easily	O
.	O
</s>
<s>
The	O
TI-Nspire	B-Device
started	O
development	O
in	O
2004	O
.	O
</s>
<s>
It	O
uses	O
a	O
proprietary	O
SoC	B-Architecture
of	O
the	O
ARM9	O
variant	O
for	O
its	O
CPU	O
.	O
</s>
<s>
The	O
TI-Nspire	B-Device
and	O
TI-Nspire	B-Device
CAS	I-Device
(	O
Computer	B-General_Concept
algebra	I-General_Concept
system	I-General_Concept
)	O
calculators	O
have	O
32	O
MB	O
of	O
NAND	O
Flash	O
,	O
32	O
MB	O
of	O
SDRAM	O
,	O
and	O
512	O
KB	O
of	O
NOR	O
Flash	O
.	O
</s>
<s>
The	O
TI-Nspire	B-Device
released	O
in	O
two	O
models	O
;	O
a	O
numeric	B-Algorithm
and	O
CAS	B-General_Concept
version	O
.	O
</s>
<s>
The	O
numeric	B-Algorithm
is	O
similar	O
in	O
features	O
to	O
the	O
TI-84	O
,	O
except	O
with	O
a	O
bigger	O
and	O
higher	O
resolution	O
screen	O
and	O
a	O
full	O
keyboard	O
.	O
</s>
<s>
The	O
feature	O
that	O
the	O
numeric	B-Algorithm
lacks	O
is	O
the	O
ability	O
to	O
solve	O
algebraic	O
equations	O
such	O
as	O
indefinite	O
integrals	O
and	O
derivatives	B-Algorithm
.	O
</s>
<s>
To	O
fill	O
in	O
the	O
gap	O
of	O
needing	O
an	O
algebraic	O
calculator	O
,	O
Texas	O
Instruments	O
introduced	O
the	O
second	O
model	O
with	O
the	O
name	O
:	O
TI-Nspire	B-Device
CAS	I-Device
.	O
</s>
<s>
The	O
CAS	B-General_Concept
is	O
designed	O
for	O
college	O
and	O
university	O
students	O
,	O
giving	O
them	O
the	O
feature	O
of	O
calculating	O
many	O
algebraic	O
equations	O
like	O
the	O
Voyage	B-Device
200	I-Device
and	O
TI-89	B-Device
(	O
which	O
the	O
TI-Nspire	B-Device
was	O
intended	O
to	O
replace	O
)	O
.	O
</s>
<s>
However	O
,	O
the	O
TI-Nspire	B-Device
does	O
lack	O
part	O
of	O
the	O
ability	O
of	O
programming	O
and	O
installing	O
additional	O
apps	O
that	O
the	O
previous	O
models	O
had	O
,	O
although	O
a	O
limited	O
version	O
of	O
TI-BASIC	B-Language
is	O
supported	O
,	O
along	O
with	O
Lua	B-Language
in	O
later	O
versions	O
.	O
</s>
<s>
C	B-Language
and	O
assembly	B-Language
are	O
only	O
possible	O
by	O
Ndless	O
.	O
</s>
<s>
Because	O
the	O
TI-Nspire	B-Device
lacks	O
a	O
QWERTY	O
keyboard	O
,	O
it	O
is	O
acceptable	O
for	O
use	O
on	O
the	O
PSAT	O
,	O
SAT	O
,	O
SAT	O
II	O
,	O
ACT	O
,	O
AP	O
,	O
and	O
IB	O
Exams	O
.	O
</s>
<s>
The	O
TI-Nspire	B-Device
CAS	I-Device
calculator	O
is	O
capable	O
of	O
displaying	O
and	O
evaluating	O
values	O
symbolically	O
,	O
not	O
just	O
as	O
floating-point	B-Algorithm
numbers	I-Algorithm
.	O
</s>
<s>
It	O
includes	O
algebraic	O
functions	O
such	O
as	O
a	O
symbolic	B-Algorithm
differential	O
equation	B-General_Concept
solver	I-General_Concept
:	O
deSolve( 	O
...	O
)	O
,	O
the	O
complex	O
eigenvectors	O
of	O
a	O
matrix	O
:	O
eigVc( 	O
...	O
)	O
,	O
as	O
well	O
as	O
calculus	O
based	O
functions	O
,	O
including	O
limits	B-Algorithm
,	O
derivatives	B-Algorithm
,	O
and	O
integrals	O
.	O
</s>
<s>
For	O
this	O
reason	O
,	O
the	O
TI-Nspire	B-Device
CAS	I-Device
is	O
more	O
comparable	O
to	O
the	O
TI-89	B-Device
Titanium	I-Device
and	O
Voyage	B-Device
200	I-Device
than	O
to	O
other	O
calculators	O
.	O
</s>
<s>
Unlike	O
the	O
TI-Nspire	B-Device
,	O
it	O
is	O
not	O
compatible	O
with	O
the	O
snap-in	O
TI-84	B-Device
Plus	I-Device
keypad	O
.	O
</s>
<s>
On	O
8	O
March	O
2010	O
,	O
Texas	O
Instruments	O
announced	O
new	O
models	O
of	O
the	O
TI-Nspire	B-Device
Touchpad	O
and	O
TI-Nspire	B-Device
CAS	I-Device
Touchpad	O
graphing	B-Application
calculators	I-Application
.	O
</s>
<s>
In	O
the	O
United	O
States	O
the	O
new	O
calculator	O
was	O
listed	O
on	O
the	O
TI	O
website	O
as	O
a	O
complement	O
to	O
the	O
TI-Nspire	B-Device
with	O
Clickpad	O
,	O
though	O
it	O
was	O
introduced	O
as	O
a	O
successor	O
to	O
the	O
previous	O
model	O
in	O
other	O
countries	O
.	O
</s>
<s>
The	O
second	O
generation	O
was	O
available	O
in	O
two	O
models	O
,	O
the	O
TI-Nspire	B-Device
Touchpad	O
and	O
TI-Nspire	B-Device
CAS	I-Device
Touchpad	O
;	O
each	O
model	O
has	O
maintained	O
the	O
color	O
of	O
itself	O
,	O
with	O
the	O
base	O
model	O
being	O
white	O
and	O
black	O
while	O
the	O
CAS	B-General_Concept
is	O
black	O
and	O
gray	O
.	O
</s>
<s>
To	O
reduce	O
theft	O
of	O
school-owned	O
TI-Nspire	B-Device
calculators	O
,	O
Texas	O
Instruments	O
also	O
introduced	O
the	O
EZ-Spot	O
Teacher	O
Packs	O
with	O
a	O
bright	O
,	O
easy-to-spot	O
,	O
"	O
school	O
bus	O
yellow	O
"	O
frame	O
and	O
slide	O
case	O
.	O
</s>
<s>
The	O
TI-Nspire	B-Device
calculators	O
that	O
were	O
released	O
after	O
the	O
touchpad	O
TI-Nspires	B-Device
also	O
have	O
EZ-Spot	O
versions	O
.	O
</s>
<s>
In	O
2011	O
,	O
the	O
TI-Nspire	B-Device
CX	I-Device
and	O
CX	O
CAS	B-General_Concept
were	O
announced	O
as	O
updates	O
to	O
TI-Nspire	B-Device
series	I-Device
.	O
</s>
<s>
They	O
have	O
a	O
thinner	O
design	O
,	O
with	O
a	O
thickness	O
of	O
1.57cm	O
(	O
almost	O
half	O
of	O
the	O
TI-89	B-Device
)	O
,	O
a	O
1,200	O
mAh	O
(	O
1,060	O
mAh	O
before	O
2013	O
)	O
rechargeable	O
battery	O
(	O
wall	O
adapter	O
is	O
included	O
in	O
the	O
American	O
retail	O
package	O
)	O
,	O
a	O
320	O
by	O
240	O
pixel	O
full	O
color	O
backlit	O
display	O
(	O
3.2	O
"	O
diagonal	O
)	O
,	O
and	O
OS	O
3.0	O
which	O
includes	O
features	O
such	O
as	O
3D	O
graphing	B-Application
.	O
</s>
<s>
The	O
CX	O
series	O
were	O
released	O
in	O
the	O
same	O
time	O
frame	O
as	O
the	O
Casio	O
Prizm	O
(	O
fx-CG10/20	O
)	O
,	O
Casio	O
's	O
color	O
screen	O
graphing	B-Application
calculator	I-Application
with	O
similar	O
features	O
.	O
</s>
<s>
The	O
TI-Nspire	B-Device
CX	I-Device
series	O
differ	O
from	O
all	O
previous	O
TI	O
graphing	B-Application
calculator	I-Application
models	O
in	O
that	O
the	O
CX	O
series	O
are	O
the	O
first	O
to	O
use	O
a	O
rechargeable	O
1,060	O
mAh	O
Lithium-Ion	O
battery	O
(	O
upgraded	O
to	O
1,200	O
mAh	O
in	O
the	O
2013	O
revision	O
)	O
.	O
</s>
<s>
The	O
device	O
is	O
charged	O
via	O
a	O
USB	B-Protocol
cable	I-Protocol
.	O
</s>
<s>
With	O
the	O
exception	O
of	O
interchangeable	O
TI-84	O
keypads	O
,	O
the	O
CX	O
series	O
retain	O
all	O
features	O
of	O
the	O
previous	O
TI-Nspire	B-Device
models	O
.	O
</s>
<s>
The	O
colors	O
of	O
the	O
calculator	O
are	O
still	O
the	O
same	O
as	O
those	O
of	O
the	O
TI-Nspire	B-Device
models	O
;	O
the	O
CX	O
is	O
white	O
and	O
dark	O
blue	O
,	O
while	O
the	O
CX	O
CAS	B-General_Concept
is	O
gray	O
and	O
black	O
.	O
</s>
<s>
The	O
mini-USB	O
port	O
,	O
located	O
at	O
the	O
center	O
on	O
the	O
top	O
of	O
the	O
TI-Nspire	B-Device
series	I-Device
,	O
has	O
moved	O
to	O
the	O
right	O
on	O
the	O
top	O
on	O
the	O
CX	O
series	O
.	O
</s>
<s>
On	O
the	O
CX	O
series	O
,	O
TI	O
added	O
a	O
second	O
port	O
immediately	O
left	O
of	O
the	O
mini-USB	O
port	O
,	O
for	O
a	O
new	O
wireless	O
module	O
.	O
</s>
<s>
The	O
new	O
wireless	O
TI-Nspire	B-Device
Navigator	O
adapter	O
,	O
which	O
allows	O
teachers	O
to	O
monitor	O
students	O
and	O
send	O
files	O
,	O
is	O
not	O
compatible	O
with	O
the	O
previous	O
TI-Nspire	B-Device
models	O
.	O
</s>
<s>
The	O
keypad	O
layout	O
is	O
very	O
similar	O
to	O
that	O
of	O
the	O
TI-Nspire	B-Device
Touchpad	O
.	O
</s>
<s>
Both	O
models	O
have	O
100	O
MB	O
of	O
user	O
memory	O
and	O
64	O
MB	O
of	O
RAM	B-Architecture
.	O
</s>
<s>
The	O
retail	O
package	O
comes	O
in	O
a	O
plastic	O
blister	O
case	O
and	O
does	O
n't	O
have	O
the	O
full	O
manual	O
,	O
while	O
the	O
teachers	O
edition	O
comes	O
in	O
a	O
box	O
with	O
a	O
TI-Nspire	B-Device
CX	I-Device
poster	O
for	O
classrooms	O
and	O
the	O
full	O
manual	O
(	O
in	O
English	O
and	O
French	O
in	O
the	O
US	O
)	O
.	O
</s>
<s>
The	O
CX	O
CAS	B-General_Concept
is	O
only	O
accepted	O
on	O
SAT	O
and	O
AP	O
.	O
</s>
<s>
The	O
CX-C	O
and	O
CX-C	O
CAS	B-General_Concept
models	O
are	O
similar	O
to	O
CX	O
and	O
CX	O
CAS	B-General_Concept
,	O
but	O
included	O
a	O
concise	O
Chinese-English	O
dictionary	O
.	O
</s>
<s>
The	O
CM-C	O
and	O
CM-C	O
CAS	B-General_Concept
are	O
cheaper	O
,	O
featured	O
a	O
more	O
stream-lined	O
design	O
,	O
but	O
have	O
only	O
32MB	O
of	O
RAM	B-Architecture
and	O
no	O
port	O
for	O
the	O
wireless	O
module	O
.	O
</s>
<s>
In	O
2019	O
,	O
Texas	O
Instruments	O
introduced	O
the	O
TI-Nspire	B-Device
CX	I-Device
II	O
and	O
TI-Nspire	B-Device
CX	I-Device
II	O
CAS	B-General_Concept
.	O
</s>
<s>
They	O
feature	O
a	O
slightly	O
different	O
operating	O
system	O
with	O
several	O
enhancements	O
and	O
slightly	O
improved	O
hardware	O
,	O
including	O
Python	B-Language
integration	O
.	O
</s>
<s>
The	O
non-CAS	O
version	O
lacks	O
the	O
exact	O
math	O
mode	O
which	O
is	O
included	O
in	O
the	O
CAS	B-General_Concept
version	O
as	O
well	O
as	O
all	O
the	O
models	O
dedicated	O
to	O
the	O
European/China	O
market	O
(	O
T	O
and	O
C	B-Language
versions	O
)	O
.	O
</s>
<s>
The	O
CX	O
II-T	O
and	O
CX	O
II-T	O
CAS	B-General_Concept
both	O
have	O
different	O
body	O
color	O
designs	O
than	O
their	O
North	O
American	O
counterparts	O
.	O
</s>
<s>
One	O
of	O
the	O
main	O
feature	O
differences	O
in	O
the	O
European	O
versions	O
is	O
the	O
inclusion	O
of	O
an	O
exact	O
math	O
engine	O
in	O
both	O
the	O
CAS	B-General_Concept
and	O
the	O
non-CAS	O
version	O
.	O
</s>
<s>
They	O
offer	O
CAS	B-General_Concept
and	O
non-CAS	O
versions	O
of	O
their	O
student	O
and	O
teacher	O
software	O
.	O
</s>
<s>
This	O
software	O
allows	O
users	O
to	O
share	O
results	O
with	O
classmates	O
and	O
teachers	O
and	O
gives	O
the	O
user	O
an	O
emulated	B-Application
version	O
of	O
the	O
TI-Nspire	B-Device
.	O
</s>
<s>
Beside	O
the	O
TI	B-Language
Basic	I-Language
functionality	O
the	O
Nspire	B-Device
calculators	O
provides	O
functionality	O
to	O
run	O
scripts	O
written	O
in	O
two	O
additional	O
programming	O
languages	O
with	O
the	O
standard	O
TI	O
firmware	O
.	O
</s>
<s>
With	O
the	O
release	O
of	O
OS	O
3.0	O
,	O
the	O
Lua	B-Language
scripting	I-Language
language	I-Language
is	O
supported	O
,	O
allowing	O
3rd	O
party	O
programs	O
to	O
be	O
run	O
without	O
the	O
need	O
of	O
exploits	O
.	O
</s>
<s>
There	O
are	O
currently	O
more	O
than	O
100	O
third-party	O
programs	O
and	O
functions	O
for	O
the	O
Nspire	B-Device
that	O
introduce	O
new	O
functionality	O
,	O
like	O
Laplace	O
transforms	O
,	O
Fourier	B-Algorithm
transforms	I-Algorithm
,	O
and	O
3rd	O
and	O
4th	O
degree	O
differential	O
equations	O
,	O
that	O
are	O
not	O
included	O
by	O
default	O
.	O
</s>
<s>
The	O
actual	O
LUA	B-Language
Version	O
is	O
5.1	O
in	O
OS	O
Version	O
5.2	O
(	O
September	O
2020	O
)	O
.	O
</s>
<s>
Since	O
firmware	O
version	O
5.2	O
it	O
is	O
possible	O
to	O
program	O
and	O
run	O
Python	B-Language
(	O
Version	O
3.4.0	O
in	O
September	O
2020	O
)	O
scripts	O
in	O
an	O
interpreter	B-Application
shell	B-Operating_System
or	O
from	O
the	O
main	O
calculator	O
command	B-Application
line	I-Application
.	O
</s>
<s>
The	O
TI-Nspire	B-Device
Lab	O
Cradle	O
is	O
a	O
Calculator-Based	O
Laboratory	O
system	O
introduced	O
in	O
1994	O
.	O
</s>
<s>
The	O
TI-Nspire	B-Device
Lab	O
Cradle	O
has	O
three	O
analog	O
and	O
two	O
digital	O
inputs	O
with	O
a	O
sampling	O
rate	O
of	O
up	O
to	O
100,000	O
readings	O
per	O
second	O
.	O
</s>
<s>
The	O
Lab	O
Cradle	O
allows	O
the	O
TI-Nspire	B-Device
series	I-Device
to	O
communicate	O
with	O
older	O
Calculator-Based	O
Laboratory	O
systems	O
that	O
previous	O
TI	O
calculators	O
used	O
(	O
TI-73	B-Device
series	I-Device
,	O
TI-82	B-Device
,	O
TI-83	B-Device
series	I-Device
,	O
TI-85	B-Device
,	O
and	O
TI-86	B-Device
)	O
.	O
</s>
<s>
The	O
TI-Nspire	B-Device
Lab	O
Cradle	O
used	O
the	O
rechargeable	O
battery	O
of	O
the	O
TI-Nspire	B-Device
and	O
support	O
three	O
different	O
charging	O
options	O
:	O
wall	O
adapter	O
,	O
USB	B-Protocol
cable	I-Protocol
to	O
computer	O
and	O
TI-Nspire	B-Device
Cradle	O
Charging	O
Bay	O
.	O
</s>
<s>
The	O
TI-Nspire	B-Device
Lab	O
Cradle	O
is	O
marketed	O
by	O
Texas	O
Instruments	O
and	O
developed	O
as	O
part	O
of	O
an	O
ongoing	O
business	O
venture	O
between	O
TI	O
and	O
Vernier	O
Software	O
&	O
Technology	O
of	O
Portland	O
,	O
Oregon	O
.	O
</s>
<s>
The	O
navigator	O
system	O
allows	O
teachers	O
to	O
connect	O
multiple	O
TI-Nspire	B-Device
calculators	O
to	O
a	O
computer	O
through	O
the	O
TI-Nspire	B-Device
Access	O
Point	O
and	O
TI-Nspire	B-Device
Navigator	O
Wireless	O
Cradles	O
.	O
</s>
<s>
The	O
system	O
includes	O
the	O
TI-Nspire	B-Device
cradle	O
charging	O
bay	O
and	O
the	O
main	O
system	O
which	O
looks	O
like	O
a	O
wireless	O
router	O
.	O
</s>
<s>
The	O
Navigator	O
system	O
was	O
first	O
available	O
when	O
the	O
first	O
generation	O
Nspires	B-Device
were	O
launched	O
,	O
but	O
when	O
the	O
TI-Nspire	B-Device
CX	I-Device
and	O
CX	O
CAS	B-General_Concept
were	O
released	O
,	O
a	O
new	O
wireless	O
adapter	O
was	O
announced	O
that	O
is	O
smaller	O
but	O
not	O
compatible	O
with	O
the	O
TI-Nspire	B-Device
and	O
TI-Nspire	B-Device
Touchpad	O
.	O
</s>
<s>
Press-to-Test	O
can	O
only	O
be	O
disabled	O
by	O
connecting	O
to	O
another	O
calculator	O
or	O
a	O
computer	O
with	O
TI-Nspire	B-Device
compatible	O
software	O
installed	O
.	O
</s>
<s>
Ndless	O
(	O
alternatively	O
stylized	O
Ndl3ss	O
)	O
is	O
a	O
third-party	O
jailbreak	O
for	O
the	O
TI-Nspire	B-Device
calculators	O
that	O
allows	O
native	O
programs	O
,	O
such	O
as	O
C	B-Language
,	O
C++	B-Language
,	O
and	O
ARM	B-Architecture
assembly	I-Architecture
programs	I-Architecture
,	O
to	O
run	O
.	O
</s>
<s>
With	O
Ndless	O
,	O
low-level	O
operations	O
can	O
be	O
accomplished	O
,	O
for	O
example	O
overclocking	B-Application
,	O
allowing	O
the	O
handheld	O
devices	O
to	O
run	O
faster	O
.	O
</s>
<s>
In	O
addition	O
,	O
Game	B-Device
Boy	I-Device
,	O
Game	B-Device
Boy	I-Device
Advance	I-Device
,	O
and	O
Nintendo	O
Entertainment	O
System	O
emulators	B-Application
exist	O
for	O
the	O
handhelds	O
with	O
Ndless	O
.	O
</s>
<s>
Major	O
Ndless-powered	O
programs	O
also	O
include	O
a	O
port	O
of	O
the	O
game	O
Doom	B-Application
.	O
</s>
<s>
Unlike	O
Lua	B-Language
scripts	I-Language
,	O
which	O
are	O
supported	O
by	O
Texas	O
Instruments	O
,	O
Ndless	O
is	O
actively	O
counteracted	O
by	O
TI	O
.	O
</s>
<s>
Texas	O
Instruments	O
developed	O
their	O
own	O
proprietary	O
System-On-Chip	B-Architecture
from	O
the	O
ARM9	O
32-bit	O
processors	O
.	O
</s>
<s>
The	O
first	O
generation	O
of	O
the	O
TI-Nspire	B-Device
is	O
based	O
on	O
LSI	O
Corporation	O
's	O
(	O
now	O
Broadcom	O
Inc	O
.	O
)	O
"	O
Zevio	O
"	O
design	O
while	O
the	O
CX	O
and	O
CX	O
II	O
generation	O
is	O
built	O
with	O
Toshiba	O
's	O
Application-Specific	O
Integrated	O
Circuit	O
design	O
.	O
</s>
<s>
Most	O
Texas	O
Instruments	O
calculators	O
contain	O
only	O
a	O
non-volatile	B-General_Concept
read-only	B-Device
memory	I-Device
called	O
NAND	O
Flash	O
and	O
a	O
volatile	B-General_Concept
random-access	B-Architecture
memory	I-Architecture
called	O
Synchronous	O
dynamic	O
random-access	B-Architecture
memory	I-Architecture
or	O
SDRAM	O
.	O
</s>
<s>
However	O
,	O
the	O
TI-Nspire	B-Device
also	O
uses	O
NOR	B-Device
ROM	I-Device
to	O
store	O
boot	O
instructions	O
for	O
the	O
operating	O
system	O
.	O
</s>
<s>
Previous	O
Texas	O
Instruments	O
calculators	O
had	O
a	O
backup	O
button	B-Algorithm
cell	I-Algorithm
battery	O
used	O
to	O
maintain	O
user	O
information	O
,	O
system	O
information	O
and	O
time	O
and	O
date	O
,	O
between	O
battery	O
changes	O
.	O
</s>
<s>
Because	O
the	O
TI-Nspire	B-Device
lacks	O
this	O
backup	O
battery	O
,	O
the	O
SDRAM	O
content	O
is	O
deleted	O
whenever	O
the	O
user	O
has	O
to	O
swap	O
the	O
battery	O
out	O
.	O
</s>
<s>
Despite	O
the	O
overall	O
performance	O
increase	O
between	O
versions	O
of	O
the	O
TI-Nspire	B-Device
,	O
performance	O
differences	O
do	O
exist	O
.	O
</s>
<s>
The	O
TI-Nspire	B-Device
CX	I-Device
II	O
version	O
lacks	O
10+	O
MB	O
of	O
storage	O
space	O
compared	O
to	O
its	O
predecessor	O
.	O
</s>
<s>
The	O
TI-Nspire	B-Device
CM-C	O
and	O
CM-C	O
CAS	B-General_Concept
(	O
the	O
Chinese	O
versions	O
of	O
the	O
CX	O
and	O
CX	O
CAS	B-General_Concept
)	O
are	O
cheaper	O
and	O
have	O
an	O
updated	O
design	O
,	O
but	O
have	O
only	O
32MB	O
of	O
RAM	B-Architecture
and	O
no	O
port	O
for	O
the	O
wireless	O
module	O
.	O
</s>
<s>
The	O
TI-Nspire	O
CX/CX	O
CAS	B-General_Concept
calculators	O
are	O
now	O
running	O
the	O
operating	O
system	O
(	O
OS	O
)	O
version	O
4.5.5.79	O
,	O
released	O
in	O
August	O
2021	O
.	O
</s>
<s>
The	O
TI-Nspire	B-Device
CX	I-Device
II/CX	O
II	O
CAS	B-General_Concept
are	O
running	O
version	O
6.0.3.374	O
,	O
released	O
in	O
January	O
2023	O
.	O
</s>
<s>
Starting	O
with	O
OS	O
2.0	O
,	O
additional	O
features	O
were	O
added	O
to	O
increase	O
usability	O
and	O
usefulness	O
of	O
the	O
TI-Nspire	B-Device
.	O
</s>
<s>
These	O
features	O
have	O
stayed	O
with	O
the	O
Nspire	B-Device
series	O
to	O
date	O
.	O
</s>
<s>
Images	O
can	O
be	O
included	O
in	O
TI-Nspire	B-Device
documents	O
using	O
the	O
computer	O
software	O
.	O
</s>
<s>
They	O
can	O
then	O
be	O
displayed	O
on	O
the	O
Nspire	B-Device
calculators	O
and	O
in	O
full	O
color	O
on	O
the	O
Nspire	B-Device
CX	O
calculators	O
.	O
</s>
<s>
3D	O
graphing	B-Application
is	O
supported	O
,	O
as	O
well	O
as	O
differential	O
equations	O
.	O
</s>
<s>
OS	O
3.0	O
also	O
adds	O
the	O
ability	O
to	O
run	O
programs	O
that	O
are	O
written	O
in	O
Lua	B-Language
.	O
</s>
<s>
OS	O
3.2	O
also	O
saw	O
the	O
inclusion	O
of	O
the	O
Chipmunk	B-Application
physics	I-Application
engine	I-Application
for	O
use	O
in	O
Lua	B-Language
programs	O
.	O
</s>
<s>
OS	O
5.0	O
is	O
currently	O
exclusive	O
to	O
the	O
CX	O
II/CX	O
II	O
CAS	B-General_Concept
and	O
their	O
-T	O
counterparts	O
.	O
</s>
<s>
OS	O
5.2	O
is	O
currently	O
exclusive	O
to	O
the	O
CX	O
II/CX	O
II	O
CAS	B-General_Concept
and	O
their	O
-T	O
counterparts	O
.	O
</s>
<s>
Python	B-Language
programming	I-Language
language	I-Language
support	O
in	O
Host	O
Software	O
and	O
on	O
the	O
calculator	O
.	O
</s>
<s>
OS	O
5.3	O
is	O
currently	O
exclusive	O
to	O
the	O
CX	O
II/CX	O
II	O
CAS	B-General_Concept
and	O
their	O
-T	O
counterparts	O
.	O
</s>
<s>
Six	O
TI-authored	O
modules	O
that	O
are	O
additional	O
libraries	O
for	O
Python	B-Language
's	O
functionality	O
.	O
</s>
