$3.$ Finite State Machines $($FSMs$)$

a$.$ Define a Mealy machine and a Moore machine. Provide examples of each and explain the differences

in terms of output generation and state transitions.

b$.$ Design a $3-$bit binary counter using a Moore machine. Provide the state diagram and state transition

table.

$4.$ Designing Sequential Circuits

a$.$ Design a $4-$bit shift$-$left register using T flip$-$flops. Provide the truth table and logic diagram for your

design.

b$.$ Create a finite state machine to model a simple vending machine. Specify the states, inputs, outputs,

and transitions.