Theory of Automata

(DFA and NFA) VS (Moore and Mealy) Machines



Just like DFA and NFA Automata Machine, the Moore and Mealy are also Automata machines. Moore and Mealy machine also accept the regular languages like DFA and NFA.

(DFA and NFA) VS (Moore and Mealy)

Sr. DFA and NFA Machines Moore and Mealy Machine
1 In NFA there is no dedicated path for each input from each state. For Moore and Mealy Machine, there must be a dedicated path for each input from each state like DFA.
2 There are one or more than one final states in DFA and NFA Machines. There is no final state in Moore and Mealy Machines.
3 Both DFA and NFA Machines take the inputs and do not give the output. Both Moore and Mealy Machines take the inputs and give the output as well
4 Both DFA and NFA just check the acceptance of the given string. Main concern with output rather than acceptance of input.
5 DFA can be converted into NFA Machines and vice versa. Moore can be converted into Mealy Machines and vice versa.

Note: DFA and NFA have no relation with Moore and Mealy Machines.

Diagrams of DFA, NFA, Moore and Mealy Machines



A simple Diagrams of all four (DFA, NFA, Moore and Mealy) Automata Machine are given below

Diagrams of DFA, NFA, Moore and Mealy Machines cstaleem

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