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The abstract machine

The abstract machine implemented by the ECS system consisted of the following 8 types of objects, and about 100 actions which could be performed on them: The state of each existing object was represented in some region, or regions, of ECS. The following will describe each type of object, and the kinds of actions available. Chapter 8 will give a more detailed description of the representation.

Paul McJones
1998-06-22