<s>
The	O
System	B-Application
573	I-Application
is	O
an	O
arcade	O
system	O
board	O
made	O
by	O
Konami	O
based	O
on	O
the	O
original	B-Device
PlayStation	I-Device
.	O
</s>
<s>
The	O
hardware	O
was	O
used	O
primarily	O
for	O
Konami	O
's	O
Bemani	O
series	O
of	O
music	B-Application
video	I-Application
game	I-Application
arcades	O
,	O
including	O
the	O
popular	O
Dance	B-Application
Dance	I-Application
Revolution	I-Application
series	O
introduced	O
in	O
1998	O
.	O
</s>
<s>
The	O
System	B-Application
573	I-Application
is	O
available	O
is	O
configurable	O
with	O
various	O
expansion	O
IO	O
boards	O
to	O
add	O
extra	O
input	O
or	O
output	O
,	O
such	O
as	O
the	O
analog	O
and	O
digital	O
I/O	O
boards	O
for	O
Dance	B-Application
Dance	I-Application
Revolution	I-Application
and	O
other	O
Bemani	O
games	O
.	O
</s>
<s>
Systems	O
with	O
these	O
IO	O
boards	O
are	O
often	O
called	O
System	B-Application
573	I-Application
Analog	O
and	O
System	B-Application
573	I-Application
Digital	O
respectively	O
.	O
</s>
<s>
There	O
is	O
also	O
another	O
variant	O
called	O
the	O
System	B-Application
573	I-Application
Satellite	O
Terminal	O
which	O
allows	O
for	O
up	O
to	O
8	O
cabinets	O
to	O
be	O
networked	O
to	O
a	O
central	O
one	O
.	O
</s>
<s>
The	O
System	B-Application
573	I-Application
uses	O
the	O
same	O
system	O
design	O
as	O
the	O
original	O
Sony	B-Device
PlayStation	I-Device
but	O
with	O
a	O
few	O
upgrades	O
.	O
</s>
<s>
Notably	O
the	O
573	O
uses	O
double	O
the	O
work	O
RAM	O
and	O
video	O
RAM	O
and	O
is	O
missing	O
the	O
CD	O
controller	O
from	O
the	O
PlayStation	B-Device
.	O
</s>
<s>
The	O
System	B-Application
573	I-Application
analog	O
uses	O
the	O
analog	O
audio	O
output	O
from	O
a	O
CD	O
drive	O
,	O
whereas	O
the	O
System	B-Application
573	I-Application
digital	O
gets	O
audio	O
through	O
the	O
IDE	O
connector	O
of	O
a	O
CD	O
drive	O
,	O
thus	O
all	O
communications	O
with	O
the	O
drive	O
are	O
digital	O
in	O
this	O
version	O
.	O
</s>
<s>
Central	O
processor	O
:	O
33.8688MHz	O
MIPS	B-Device
R3000A	O
RISC	B-Architecture
processor	I-Architecture
,	O
4KB	O
cache	O
.	O
</s>
<s>
Storage	O
:	O
ATAPI	O
CD-ROM	B-Device
drive	O
,	O
16MB	O
flash	O
storage	O
,	O
16MB	O
PC-CARD	O
flash	O
storage	O
.	O
</s>
<s>
Sound	O
processor	O
:	O
PlayStation	B-Device
SPU	O
,	O
MAS	O
3507-D	O
MPEG	O
1/2	O
decoder	O
chip	O
for	O
decoding	O
573	O
Digital	O
game	O
audio	O
.	O
</s>
