Discussion
On what does the output of a Mealy machine depend ?
Answer: C
A Mealy machine's output depends on the current input and the present state.
In a Mealy machine, outputs are attached to transitions, so the output is a function of both the state the machine is in and the input it is receiving. A change in input can change the output at once, without waiting for a state change.
Output that depends only on the present state defines a Moore machine, the usual contrast. Output from the input alone would make it a combinational circuit, not a state machine, and the clock only times the state changes; it does not determine the output value.
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