<s>
The	O
TurboExpress	B-Application
is	O
an	O
8-bit	O
handheld	B-Application
game	I-Application
console	I-Application
by	O
NEC	O
Home	O
Electronics	O
,	O
released	O
in	O
late	O
1990	O
in	O
Japan	O
and	O
the	O
United	O
States	O
,	O
branded	O
as	O
the	O
PC	B-Application
Engine	I-Application
GT	I-Application
in	O
Japan	O
and	O
TurboExpress	B-Application
Handheld	B-Application
Entertainment	O
System	O
in	O
the	O
U.S.	O
</s>
<s>
It	O
is	O
essentially	O
a	O
portable	O
version	O
of	O
the	O
TurboGrafx-16	B-General_Concept
home	O
console	O
that	O
came	O
two	O
to	O
three	O
years	O
earlier	O
.	O
</s>
<s>
The	O
TurboExpress	B-Application
was	O
technically	O
advanced	O
for	O
the	O
time	O
,	O
able	O
to	O
play	O
all	O
the	O
TurboGrafx16	B-General_Concept
's	O
HuCard	B-Device
games	O
,	O
featuring	O
a	O
TV	B-Device
tuner	I-Device
and	O
a	O
backlit	O
,	O
active-matrix	B-General_Concept
color	B-Device
LCD	I-Device
screen	O
.	O
</s>
<s>
The	O
TurboExpress	B-Application
primarily	O
competed	O
with	O
Nintendo	O
's	O
Game	B-Device
Boy	I-Device
,	O
Sega	O
's	O
Game	O
Gear	O
,	O
and	O
the	O
Atari	B-General_Concept
Lynx	I-General_Concept
.	O
</s>
<s>
With	O
1.5	O
million	O
units	O
sold	O
,	O
far	O
behind	O
its	O
two	O
main	O
competitors	O
,	O
NEC	O
failed	O
to	O
gain	O
significant	O
sales	O
or	O
market	O
share	O
in	O
the	O
handheld	B-Application
market	I-Application
.	O
</s>
<s>
The	O
TurboExpress	B-Application
's	O
codename	O
was	O
Game	O
Tank	O
.	O
</s>
<s>
Regardless	O
of	O
its	O
technical	O
advantages	O
upon	O
its	O
release	O
,	O
the	O
TurboExpress	B-Application
was	O
not	O
widely	O
recognized	O
or	O
adopted	O
by	O
consumers	O
.	O
</s>
<s>
In	O
addition	O
to	O
NEC	O
's	O
marketing	O
issues	O
,	O
the	O
handheld	B-Application
was	O
initially	O
released	O
for	O
$299.99	O
,	O
significantly	O
higher	O
than	O
popular	O
competitors	O
.	O
</s>
<s>
Because	O
of	O
this	O
price	O
tag	O
,	O
it	O
was	O
labeled	O
as	O
the	O
"	O
Rolls-Royce	O
of	O
handheld	B-Application
systems	O
"	O
.	O
</s>
<s>
)	O
,	O
the	O
same	O
as	O
the	O
original	B-Device
Game	I-Device
Boy	I-Device
.	O
</s>
<s>
It	O
can	O
display	O
64	O
sprites	O
at	O
once	O
,	O
16	O
per	O
scanline	B-Algorithm
,	O
in	O
up	O
to	O
481	O
colors	O
from	O
a	O
palette	B-Data_Structure
of	O
512	O
.	O
</s>
<s>
It	O
has	O
8	O
kilobytes	O
of	O
RAM	B-Architecture
,	O
and	O
it	O
runs	O
a	O
HuC6280	B-General_Concept
CPU	B-General_Concept
at	O
1.79	O
or	O
7.16	O
MHz	O
,	O
same	O
as	O
TurboGrafx-16	B-General_Concept
.	O
</s>
<s>
The	O
TurboExpress	B-Application
had	O
a	O
backlit	O
display	O
.	O
</s>
<s>
Handheld	B-Application
market	I-Application
leader	O
Nintendo	O
did	O
not	O
have	O
a	O
backlit	O
handheld	B-Application
until	O
the	O
release	O
of	O
the	O
Game	B-Device
Boy	I-Device
Light	O
in	O
1998	O
.	O
</s>
<s>
Its	O
keypad	O
layout	O
is	O
similar	O
to	O
that	O
of	O
the	O
original	B-Device
Game	I-Device
Boy	I-Device
,	O
with	O
the	O
unique	O
addition	O
of	O
two	O
"	O
turbo	O
switches	O
"	O
that	O
engage	O
two	O
levels	O
of	O
high-speed	O
controller	O
button	O
re-triggering	O
to	O
assist	O
the	O
player	O
.	O
</s>
<s>
Due	O
to	O
a	O
problem	O
with	O
faulty	O
capacitors	O
(	O
an	O
industry-wide	O
issue	O
in	O
the	O
early	O
1990s	O
)	O
,	O
sound	O
failure	O
is	O
a	O
frequent	O
problem	O
with	O
the	O
TurboExpress	B-Application
,	O
sometimes	O
even	O
in	O
new	O
systems	O
.	O
</s>
<s>
The	O
screen	O
used	O
in	O
the	O
TurboExpress	B-Application
was	O
another	O
source	O
for	O
problems	O
,	O
though	O
it	O
was	O
state	O
of	O
the	O
art	O
when	O
it	O
was	O
released	O
.	O
</s>
<s>
The	O
LCD	B-Device
technology	O
used	O
was	O
still	O
fairly	O
new	O
and	O
the	O
rate	O
of	O
pixel	B-General_Concept
failure	I-General_Concept
was	O
very	O
high	O
.	O
</s>
<s>
Brand-new	O
TurboExpress	B-Application
systems	O
often	O
had	O
several	O
bad	B-General_Concept
pixels	I-General_Concept
.	O
</s>
<s>
Text	O
is	O
also	O
difficult	O
or	O
impossible	O
to	O
read	O
in	O
certain	O
circumstances	O
,	O
as	O
many	O
times	O
fonts	O
were	O
written	O
to	O
be	O
seen	O
on	O
a	O
television	O
screen	O
,	O
not	O
on	O
a	O
small	O
LCD	B-Device
screen	I-Device
.	O
</s>
<s>
The	O
TurboExpress	B-Application
plays	O
the	O
same	O
game	B-Protocol
cartridges	I-Protocol
as	O
the	O
TurboGrafx-16	B-General_Concept
home	O
console	O
.	O
</s>
<s>
Some	O
TurboGrafx-16	B-General_Concept
HuCards	B-Device
save	O
game	O
data	O
to	O
the	O
internal	O
memory	O
of	O
the	O
TurboGrafx-CD	O
unit	O
,	O
TurboDuo	B-General_Concept
,	O
or	O
TurboBooster	O
Plus	O
(	O
a	O
peripheral	O
for	O
the	O
core	O
TG-16	B-General_Concept
console	O
)	O
.	O
</s>
<s>
The	O
TurboExpress	B-Application
lacks	O
this	O
internal	O
memory	O
and	O
,	O
as	O
a	O
result	O
,	O
is	O
not	O
capable	O
of	O
saving	O
in	O
this	O
manner	O
.	O
</s>
<s>
The	O
battery	O
life	O
is	O
about	O
three	O
hours	O
for	O
6	O
AA	B-Algorithm
batteries	I-Algorithm
.	O
</s>
<s>
This	O
is	O
also	O
a	O
problem	O
for	O
other	O
color	O
and	O
backlit	O
or	O
sidelit	O
handhelds	B-Application
of	O
the	O
time	O
,	O
such	O
as	O
the	O
Game	O
Gear	O
at	O
5	O
–	O
6	O
hours	O
,	O
the	O
Sega	B-Device
Nomad	I-Device
at	O
2	O
–	O
3	O
hours	O
,	O
and	O
the	O
Atari	B-General_Concept
Lynx	I-General_Concept
at	O
more	O
than	O
4	O
hours	O
.	O
</s>
<s>
Nintendo	O
's	O
Game	B-Device
Boy	I-Device
had	O
a	O
12	O
-	O
to	O
40-hour	O
lifespan	O
on	O
4	O
AA	B-Algorithm
batteries	I-Algorithm
.	O
</s>
<s>
Falcon	O
,	O
a	O
flight	O
simulator	O
,	O
includes	O
"	O
head-to-head	O
"	O
dogfight	B-Device
and	O
cooperative	O
modes	O
that	O
can	O
only	O
be	O
accessed	O
via	O
TurboLink	O
.	O
</s>
<s>
This	O
technology	O
was	O
also	O
used	O
for	O
Bomberman	B-Application
'	I-Application
93	I-Application
Com-Link	O
multiplayer	O
.	O
</s>
<s>
Although	O
it	O
was	O
released	O
after	O
the	O
TurboExpress	B-Application
launch	O
,	O
very	O
few	O
TG-16	B-General_Concept
games	O
offer	O
co-op	O
play	O
modes	O
especially	O
designed	O
with	O
the	O
TurboExpress	B-Application
in	O
mind	O
.	O
</s>
<s>
TurboVision	B-Application
is	O
a	O
TV	B-Device
tuner	I-Device
adapter	O
for	O
the	O
TurboExpress	B-Application
converting	O
the	O
TurboExpress	B-Application
into	O
an	O
handheld	B-Application
television	O
.	O
</s>
<s>
It	O
allowed	O
a	O
player	O
to	O
either	O
watch	O
television	O
,	O
or	O
go	O
back	O
to	O
playing	O
games	O
with	O
the	O
flip	O
of	O
a	O
switch	O
;	O
in	O
other	O
words	O
,	O
one	O
may	O
use	O
the	O
TurboExpress	B-Application
as	O
a	O
video	O
monitor	O
.	O
</s>
<s>
It	O
includes	O
an	O
RCA	B-Protocol
audio/video	I-Protocol
input	I-Protocol
for	O
external	O
composite	O
video	O
signals	O
.	O
</s>
<s>
Due	O
to	O
the	O
widespread	O
adoption	O
of	O
digital	B-Application
television	I-Application
and	O
the	O
HDTV	B-Device
standard	O
,	O
however	O
,	O
the	O
adapter	O
will	O
no	O
longer	O
function	O
as	O
a	O
television	O
in	O
most	O
places	O
due	O
to	O
the	O
lack	O
of	O
any	O
HDTV	B-Device
digital	O
processing	O
circuitry	O
(	O
the	O
tuner	B-Device
can	O
only	O
process	O
an	O
analog	O
signal	O
for	O
television	O
)	O
.	O
</s>
<s>
Due	O
to	O
this	O
limitation	O
,	O
the	O
TV	B-Device
tuner	I-Device
adapter	O
is	O
now	O
relegated	O
to	O
a	O
collectible	O
for	O
most	O
people	O
,	O
although	O
its	O
RCA	B-Protocol
audio/video	I-Protocol
input	I-Protocol
function	O
(	O
albeit	O
very	O
limited	O
with	O
its	O
low	O
screen	B-General_Concept
resolution	I-General_Concept
)	O
will	O
still	O
be	O
operational	O
with	O
the	O
correct	O
cables	O
.	O
</s>
<s>
Computer	O
Gaming	O
World	O
favorably	O
compared	O
TurboExpress	B-Application
to	O
the	O
Game	B-Device
Boy	I-Device
,	O
but	O
stated	O
that	O
the	O
NEC	O
handheld	B-Application
"	O
gobbles	O
power	O
like	O
crazy	O
...	O
almost	O
forcing	O
players	O
to	O
immediately	O
purchase	O
an	O
AC	O
adapter	O
"	O
.	O
</s>
<s>
The	O
magazine	O
nonetheless	O
praised	O
its	O
compatibility	O
with	O
TurboGrafx	B-General_Concept
games	O
,	O
and	O
concluded	O
,	O
"	O
to	O
see	O
this	O
machine	O
in	O
action	O
is	O
to	O
fall	O
in	O
love	O
with	O
it	O
"	O
.	O
</s>
<s>
Entertainment	O
Weekly	O
praised	O
the	O
new	O
16	B-Device
bit	I-Device
computer	O
architecture	O
of	O
the	O
system	O
and	O
the	O
graphics	O
of	O
the	O
games	O
,	O
but	O
warned	O
that	O
the	O
small	O
screen	O
is	O
a	O
downgrade	O
for	O
those	O
used	O
to	O
playing	O
the	O
games	O
on	O
a	O
big	O
screen	O
.	O
</s>
