computation

*A series of rule governed state transitions whose rules can be altered.*

**Details:**

There are numerous competing definitions of computation. Along with the initial definition provided here, the following three definitions are often encountered:

- Rule governed state transitions
- Discrete rule governed state transitions
- Rule governed state transitions between interpretable states

The difficulties with these definitions can be summarized as follows:

- Admits all physical systems into the class of computational systems, making the definition somewhat vacuous
- Excludes all forms of analog computation, perhaps including the sorts of processing taking place in the brain.
- Necessitates accepting all computational systems as representational systems. In other words, there is no computation without representation on this definition.

Chris Eliasmith