Ran across this on some website. I never knew the time line and thought I would share with anyone else who may be interested.
Computer Type Dates Made
System 3 1977-11 to 1978-08
System 4 1978-11 to 1978-03
Sysetm 6 1979-07 to 1980-11
System 7 1980-12 to 1984-08
System 9 1984-12 to 1985-06
System 11 1986-01 to 1990-11
WPC 1991-03 to 1998-10
Pinball 2000 1999-01 to 1999-06
There are sub generations of WPC as well. WPC-95, WPC-S, WPC-89...
Those dates are good info for the major system revisions though, thanks!
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Pleasant Hill, IA
