Margaret Rouse is an award-winning technical writer and teacher known for her ability to explain complex technical subjects simply to a non-technical, business audience. Over…
A deterministic finite automaton is a type of deterministic algorithm based on a state that changes with inputs. These are also known as deterministic finite state machines or deterministic finite acceptors.
They are different from probabilistic and non-deterministic models in that one input (X) results in one known output (Y).
DFAs are useful in many different types of applications. For example, they have been useful in video game programming, for instance, creating the algorithmic movements of characters in the classic game Pac-Man.
Another common use of a DFA is in vending machines where a series of states reacts to transition functions in analyzing units of money inputted into the machine to determine when a purchase price has been met.
Although deterministic models have been the traditional mainstay in programming, new probabilistic and non-deterministic models are slowly emerging. The difference is that non-deterministic models can choose between various outcomes according to inputs, and are able to learn or evolve independent of explicit programming instruction.
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Margaret is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages.
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