It is the successor to their earlier System 11 hardware (High Speed, Pin*Bot, Black Knight 2000).
The WPC MPU remained the same through all generation up to the addition of the security chip in WPC-S, and then the subsequent WPC-95 board.
Terminator 2: Judgment Day was the first to be designed with a dot matrix display, but was released after Gilligan's Island, due to Terminator 2 having a longer development time than Gilligan's Island.
The redemption game Addams Family Values also used the DCS Sound System.
Starting with World Cup Soccer, a security programmable integrated circuit (PIC) chip was added to the CPU board in all WPC-S games at location U22.