Table of Contents

## What is Moore machine explain with example?

Moore machine is a finite state machine in which the next state is decided by the current state and current input symbol. The output symbol at a given time depends only on the present state of the machine. Moore machine can be described by 6 tuples (Q, q0, ∑, O, δ, λ) where, Q: finite set of states.

**What is Moore Type FSM?**

Moore machine is an FSM whose outputs depend on only the present state. A Moore machine can be described by a 6 tuple (Q, ∑, O, δ, X, q0) where − Q is a finite set of states. ∑ is a finite set of symbols called the input alphabet. O is a finite set of symbols called the output alphabet.

### How do you know if its Moore or mealy?

The key difference between Moore and Mealy is that in a Moore state machine, the outputs depend only on the current state, while in a Mealy state machine, the outputs can also be affected directly by the inputs.

**What is the difference between a mealy FSM and a Moore FSM?**

A Mealy Machine changes its output on the basis of its present state and current input. A Moore Machine’s output depends only on the current state. It does not depend on the current input.

## Where is Moore machine used?

An elevator is a good example of a Moore machine. Imagine that each floor is a different state in the machine. Now, when you press a button to get to a certain level you change the actual state of the machine to the new level without giving any additional input.

**Is Moore preferred or Mealy?**

Moore machines may be safer to use, because they change states on the clock edge (if you are using DFF logic for present and next state), whereas Mealy machines are faster, because the state is dependent on the input. Thus, the state can change asynchronously.

### Why are Mealy and Moore machine used?

Moore machines are safer to use: Outputs change at the clock edge (always one cycle later). In Mealy machines, input change can cause output change as soon as logic is done—a big problem when two machines are interconnected – asynchronous feedback may occur if one isn’t careful.

**What is the output of Moore machine?**

In the Moore machine, the outputs are a function of only the current state (the outputs from the state register), whereas in the Mealy machine, the outputs are a function of the current state and the current inputs.

## Is Moore machine synchronous or asynchronous Why?

Moore outputs are synchronous with clock. It changes only with state transition at clock edge.

**Why is Moore preferred over Mealy?**

### What is the application of Moore machine?

**Which is characteristic of Moore machine?**

In the theory of computation, a Moore machine is a finite-state machine whose current output values are determined only by its current state. This is in contrast to a Mealy machine, whose output values are determined both by its current state and by the values of its inputs.

## Which statement is false about Moore machine?

Explanation: Statement a and b is correct while c is false. Finite machines with output have no accepting states and can be converted within each other.

**What is true for a dead or sink state?**

Which of the following statement is true for Dead State? Explanation: It is a rejecting state for if the control enters it reaches the dead end and cannot reach an accepting state.