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The document outlines the theory of computation, particularly the Chomsky hierarchy which categorizes languages into four types based on the complexity of grammars. It discusses various automata models including Finite Automaton, Pushdown Automaton, and Turing Machines, emphasizing their properties and operations. Additionally, it explains concepts such as Turing-recognizable and Turing-decidable languages, providing examples of Turing machines for computational tasks like addition and subtraction.


























