Need an introductory text first. Would like it to cover all or few topics from each category.<p>Sequential models<p>* Finite state machines
* Pushdown automata
* Turing Machine<p>Functional models<p>* Lambda calculus
* Recursive functions
* Combinatory logic
* Cellular automaton
* Abstract rewriting systems<p>Concurrent models<p>* Kahn process networks
* Petri nets
* Synchronous Data Flow
* Interaction nets
* Actor model