Lesson plan
Richards controller
The Richards controller is a method of implementing a finite-state machine using simple integrated circuits and combinational logic. The method was named after its inventor, Charles L. Richards. It allows for easier design of complex finite-state machines than the traditional techniques of state diagrams, state-transition tables and Boolean algebra offer. Using Richards's technique, it becomes easier to implement finite-state machines with hundreds or even thousands of states. Because of the Richards controller's ability to scale to use many states easily, it can be used in many practical applications.
Article summary
The Richards controller is a method of implementing a finite-state machine using simple integrated circuits and combinational logic. The method was named after its inventor, Charles L. Richards. It allows for easier design of complex finite-state machines than the traditional techniques of state diagrams, state-transition tables and Boolean algebra offer. Using Richards's technique, it becomes easier to implement finite-state machines with hundreds or even thousands of states. Because of the Richards controller's ability to scale to use many states easily, it can be used in many practical applications.
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Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
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