<s>
The	O
Namco	B-Application
System	I-Application
22	I-Application
is	O
the	O
successor	O
to	O
the	O
Namco	B-Application
System	I-Application
21	I-Application
arcade	O
system	O
board	O
.	O
</s>
<s>
It	O
debuted	O
in	O
1992	O
with	O
Sim	O
Drive	O
in	O
Japan	O
,	O
followed	O
by	O
a	O
worldwide	O
debut	O
in	O
1993	B-Application
with	O
Ridge	B-Application
Racer	I-Application
.	O
</s>
<s>
The	O
System	B-Application
22	I-Application
was	O
designed	O
by	O
Namco	O
with	O
assistance	O
from	O
graphics	O
&	O
simulation	O
company	O
Evans	O
&	O
Sutherland	O
.	O
</s>
<s>
Graphical	O
features	O
include	O
texture	O
mapping	O
,	O
Gouraud	B-Algorithm
shading	I-Algorithm
,	O
transparency	O
effects	O
,	O
and	O
depth	O
cueing	O
,	O
thanks	O
to	O
the	O
Evans	O
&	O
Sutherland	O
'	O
TR3	O
 '	O
chip/chipset	O
,	O
</s>
<s>
The	O
main	O
CPU	B-General_Concept
provides	O
a	O
scene	O
description	O
to	O
the	O
TR3	O
graphics	B-Architecture
processing	I-Architecture
unit	I-Architecture
and	O
a	O
bank	O
of	O
DSP	B-Architecture
chips	I-Architecture
which	O
perform	O
3D	O
calculations	O
.	O
</s>
<s>
A	O
variant	O
of	O
the	O
system	O
,	O
called	O
the	O
Super	B-Application
System	I-Application
22	I-Application
,	O
was	O
released	O
in	O
1995	O
.	O
</s>
<s>
The	O
hardware	O
was	O
largely	O
similar	O
to	O
the	O
System	B-Application
22	I-Application
,	O
but	O
with	O
a	O
slightly	O
higher	O
polygon	B-General_Concept
rate	O
and	O
more	O
special	O
effects	O
possible	O
.	O
</s>
