Mealy vs Moore Machine Explained | Difference Between Mealy and Moore Machine

Added: 2026-05-28

[00:00:02]Yes, so this topic will cover the simple comparison between the Mealy machine and Moorey machine.

[00:00:09]Right?

[00:00:10]It is also called as a Mealy or Moore machine. Uh the problem on that Mealy and Moore machine is is in the another video, but if the question is of four marks for comparison between Mealy and Moorey Moorey machine, then these are the eight to eight points. Out of that eight points, you can write any six points, right?

[00:00:32]So, the the output depends on in the Mealy machine is depends on the present state and the present input, right?

[00:00:40]Yes, and in in case of Moorey machine, the output depends on only the present state, okay?

[00:00:46]Yes, the output expression we are writing f of state {comma} input. Why the state {comma} input? Because the output is depends on See this one, the output is depends on here, the state as well as your input.

[00:01:00]So, that the output is means defined in such a fashion. And in the Moorey machine, the output is defined in the state only because it depends on the present state only.

[00:01:11]Uh in the in case of Mealy machine, the output changes immediately when the input is changed, right?

[00:01:17]And in the Moore machine, the output is changes only when the state changes because it depends on only the state, right? The speed of the Mealy machine is faster and it is slower. And number of states are in the Mealy machines are less and Moorey machine may more.

[00:01:36]Circuit complexity is more in the Mealy machine and Moore machine, it is simpler one.

[00:01:42]Design difficulty is difficult to design and it is easier to design.

[00:01:47]And memory requirement in case of Mealy machine is less and in the Moorey machine is more, right? And prefer use of this Mealy machine is fast response system. Where you require a fast response, you can go for the Mealy machine. And Moore machine, where you require the stable system, then it requires a You need to go for the Moore machine. So, these are the eight points of the comparison of Mealy and Moore machine. Any six point you can write in the examination if you want out of four marks for the four marks. Yes, thank you.

[00:02:18]Thanks for the watching.