Digital Compression System

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Digital Compression System, or DCS, is a sound system developed by Williams Electronics. This advanced sound board, used for Williams and Bally pinball games and coin-op arcade games by Midway Manufacturing, has become the standard sound system for these names.

Contents 1 Versions of DCS 2 Pinball games using DCS 3 Arcade games using DCS 4 External links

[edit] Versions of DCS

• DCS ROM-based mono: The first version of DCS used an Analog Devices ADSP2105 DSP (clocked at 10 MHz) and a DMA-driven DAC, outputting in mono. This was used for the majority of Williams and Midway's pinball games (starting with 1993's Indiana Jones: The Pinball Adventure), as well as Midway's video games, up until the late 1990s.
  • DCS-95: This was a revised version of the original DCS System, used for Williams and Midway's WPC-95 pinball system.
• DCS2 ROM-based stereo: This version used the ADSP2104 DSP and two DMA-driven DACs, outputting in stereo. This was used in Midway's Zeus-based hardware.
• DCS2 RAM-based stereo: This version used the ADSP2115 DSP and two DMA-driven DACs, outputting in stereo. This was used in Midway's 3DFX-based hardware (NFL Blitz, etc.). This system would be adopted by Atari Games, following their acquisition by WMS Industries.
• DCS2 RAM-based multi-channel: This version used the ADSP2181 DSP and up to six DMA-driven DACs, outputting in multichannel sound.

[edit] Pinball games using DCS

• Indiana Jones: The Pinball Adventure
• Judge Dredd

[edit] Arcade games using DCS

• Mortal Kombat II (1993)
• Mortal Kombat 3 (1995)
• Killer Instinct (1994)
• Revolution X (1994)
• Ultimate Mortal Kombat 3 (1995)
• WWF WrestleMania: The Arcade Game (1995)
• Killer Instinct (1996)
• Mortal Kombat 4 (1997)

[edit] External links

• Information on the Williams Digital Compression System (DCS)