<s>
The	O
Williams	B-Application
Pinball	I-Application
Controller	I-Application
(	O
WPC	O
)	O
is	O
an	O
arcade	O
system	O
board	O
platform	O
used	O
for	O
several	O
pinball	B-Application
games	O
designed	O
by	O
Williams	O
and	O
Midway	O
(	O
under	O
the	O
Bally	O
name	O
)	O
between	O
1990	O
and	O
early	O
1999	O
.	O
</s>
<s>
It	O
is	O
the	O
successor	O
to	O
their	O
earlier	O
System	O
11	O
hardware	O
(	O
High	O
Speed	O
,	O
Pin*Bot	B-Application
,	O
Black	O
Knight	O
2000	O
)	O
.	O
</s>
<s>
It	O
was	O
succeeded	O
by	O
Williams/Midway	O
'	O
s	O
Pinball	B-Application
2000	I-Application
platform	O
,	O
before	O
Williams	O
left	O
the	O
pinball	B-Application
business	O
in	O
October	O
1999	O
.	O
</s>
<s>
Twilight	O
Zone	O
was	O
designed	O
to	O
be	O
the	O
first	O
pinball	B-Application
machine	O
to	O
use	O
the	O
new	O
DCS	O
system	O
,	O
but	O
due	O
to	O
delays	O
of	O
the	O
new	O
hardware	O
design	O
it	O
was	O
decided	O
to	O
release	O
it	O
on	O
the	O
old	O
hardware	O
(	O
using	O
downsampled	O
sound	O
effects	O
)	O
instead	O
.	O
</s>
