FAs = Finite Automata = Finite State MachinesFinite Automaton accepts a Regular LanguageFinite AutomataDFANFAECA VisualizationFinite State Machine Designerhttps://madebyevan.com/fsm/Finite AutomatonThis is a drawing of a toy parser finite automaton, probably generated by Yacc. The rankdir=LR attribute requests a left-to-right drawing, oriented in landscape mode. Note the use of text labels on edges. Computation begins at node 0, and ends at "accept state" nodes, marked with double-circles.http://www.graphviz.org/Gallery/directed/fsm.html