System software
By "system software" we mean software other than applications and
development tools, but outside the core system itself. This
distinction is perhaps somewhat artificial.
- The object store, i.e. the
place where objects are stored permanently. It is similar to (but
also very different from) the file system of other systems.
- The display server,
i.e. the software that renders graphic requests on the part of
applications.
- The listener, i.e., the program
that the user interacts with to execute other programs.