Adobe Systems | BAE Systems | Cisco Systems | trilogy | Catalog numbering systems for single records | Electronic Data Systems | Cadence Design Systems | Sprawl trilogy | Microelectromechanical systems | Mars trilogy | Marconi Electronic Systems | systems engineering | Space and Missile Systems Center | Raytheon Space and Airborne Systems | Epic Systems | Elbit Systems | Burroughs large systems | Westinghouse Rail Systems | The Deptford Trilogy | Systems engineering | Nielsen Broadcast Data Systems | Naval Sea Systems Command | Mouse Systems | International Institute for Applied Systems Analysis | BEA Systems | Advanced Systems Format | The Brentford Trilogy | Systems art | Rafael Advanced Defense Systems | Pinnacle Systems |
Their concern was that open PL/S would give competitors, Amdahl, Itel (National Advanced Systems), Storage Technology Corporation, Trilogy Systems, Magnuson Computer Systems, Fujitsu, Hitachi, and other PCM vendors a marketing advantage.