operating system | Super Nintendo Entertainment System | Nintendo Entertainment System | Android (operating system) | Global Positioning System | Solar System | X Window System | Public-access television | Korean Broadcasting System | Access Hollywood | System of a Down | Domain Name System | Seoul Broadcasting System | North Carolina Community College System | Mutual Broadcasting System | Bulletin board system | system | Turner Broadcasting System | Program and System Information Protocol | Geographic information system | Ubuntu (operating system) | Tokyo Broadcasting System | Federal Reserve System | Access Industries | Youth system | Embedded system | Controlled-access highway | solar system | Seigneurial system of New France | Interstate Highway System |
B-CAS (BS Conditional Access Systems Co., Ltd.) is a vendor and operator of the ISDB CAS system in Japan.
Mediaguard is a conditional access system for digital television developed by SECA (Société Européenne de Contrôle d'Accès), company renamed to Canal+ Technologies SA (CEO François CARAYOL), a subsidiary of Canal+ Group, sold to Thomson (CEO Thierry Breton).
Nagra France is a company which develops and markets the Mediaguard conditional access system for digital television.