What  are the components of Finite automaton model?

The components of FA model are Input tape, Read control and finite control.         
(a)The input tape is divided into number of cells. Each cell can hold one i/p symbol. 
(b)The read head reads one symbol at a time and moves ahead.
(c)Finite control acts like a CPU. Depending on the current state and input symbol read from the input tape it changes state.