These can be "filed in" to the VisualWorks IDE to generate any classes not already contained in the Smalltalk image.
operating system | Super Nintendo Entertainment System | Nintendo Entertainment System | Android (operating system) | Global Positioning System | Solar System | X Window System | Image Comics | Korean Broadcasting System | Spitting Image | 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 | Raw image format | Federal Reserve System | Youth system | Tagged Image File Format | Public Image Ltd | Embedded system | solar system | Seigneurial system of New France |
SSI operating system project created by the Faculty of Science and Technology at Deakin University, Melbourne Australia.
NonStop Clusters (NSC) was an add-on package for SCO UnixWare that allowed creation of fault-tolerant single-system image clusters of machines running UnixWare.