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Unit 8 · Theory of Computation and Compilers Paper 2 CS · June 2024 Re-Exam

Arrange the following stages of a Turing Machine (TM) operation in the correct order as they occur during computation.
(A) Writing a symbol on the tape
(B) Moving the tape head left or right
(C) Reading a symbol from the tape
(D) Transitioning to a new state based on the current state and symbol read
(E) Halting and accepting or rejecting the input
Choose the correct answer from the options given below:

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Correct answer: C. (C), (D), (A), (B), (E)

Explanation

In each move the TM reads the current symbol, applies δ to determine the new state, writes a symbol, and moves the head. This repeats until it halts and accepts or rejects.

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