Question: Let a 2 - PDA be a pushdown automata with access to 2 stacks. ( In each transition, we can read the top of both

Let a 2-PDA be a pushdown automata with access to 2 stacks. (In each transition, we can read the top of both stacks and push something on top of both stacks, if we choose.) a) Give an example of a language that is NOT context free that can be accepted by a 2-PDA. Briefly describe in words how this 2-PDA would operate to accept that language. b) Show that a standard Turing Machine can be implemented using a 2-PDA.

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