- Asked 2/9
- 2072 Asoj · 2 marks
- 2071 Bhadra · 2 marks
Differentiate Finite State Machine and Automata
Short answer
A finite state automaton (FSA) only accepts or rejects strings and has final states, recognizing a language. A finite state machine (FSM) produces an output string via an output function and lacks final states, used for computing functions like sequential circuits.
Differentiate between a Finite State Machine and a Finite State Automaton.
| Point | Finite State Machine (FSM) | Finite State Automaton (FSA) |
|---|---|---|
| Output | Produces an output string (Mealy or Moore machine) | Produces no output, only accepts or rejects |
| Definition | (S, I, O, f, g, s₀): states, input alphabet, output alphabet, next-state function, output function, start state | (Q, Σ, δ, q₀, F): states, alphabet, transition function, start state, final states |
| Final states | None needed | Has a set of final (accepting) states |
| Purpose | Computes a function, e.g. a vending machine or sequential circuit | Recognises a language |
| Example | Binary adder or parity generator | DFA accepting strings with even a's |
✓ Answer checked by Claude Opus 5.5 (high effort)
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