Also explain the terms Trap state, Final state, non-final state and initial state?

 Trap state: A trap state, also known as a sink state, is a state in a finite state machine that has no outgoing transitions. This means that once the system enters a trap state, it cannot transition to any other state. Trap states are often used to indicate an error or abnormal condition in the system.

Final state: A final state, also known as an accepting state or a terminal state, is a state in a finite state machine that indicates the end of a process or computation. When the system reaches a final state, it may stop processing input or perform some final action, such as printing a result or returning a value.

Non-final state: A non-final state, also known as a non-accepting state or a non-terminal state, is a state in a finite state machine that is not a final state. The system can transition from a non-final state to another state in response to an event.

Initial state: The initial state, also known as the start state, is the state in a finite state machine that the system starts in when it is first activated or reset. The initial state is typically indicated by a special symbol or notation in the state diagram.

It's worth noting that some finite state machines may not have a final state, and some may have multiple final states. The specific design of a finite state machine will depend on the requirements and goals of the system it is used to model.