Question 7: Turing Machines (a) Draw the state diagram of a Turing Machine, that converts every 'a' to 'b', and every 'b' to 'a', except for the last alphabet. Also, it goes to the accept state if the last alphabet is 'a', and goes to the reject state if the last alphabet is 'b'. Hint: Convert everything until you reach the end (blank symbol), then take one step backward and convert the last alphabet again. As you converted the last alphabet twice, it ensures that the last alphabet was not changed. Then stop and depending on what the last alphabet is, now finally, go to the accept or reject state.

Question 7: Turing Machines (a) Draw the state diagram of a Turing Machine, that converts every 'a' to 'b', and every 'b' to 'a', except for the last alphabet. Also, it goes to the accept state if the last alphabet is 'a', and goes to the reject state if the last alphabet is 'b'. Hint: Convert everything until you reach the end (blank symbol), then take one step backward and convert the last alphabet again. As you converted the last alphabet twice, it ensures that the last alphabet was not changed. Then stop and depending on what the last alphabet is, now finally, go to the accept or reject state.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Problems on Turing Machines

In the computational world, the Turing machine is a powerful computation engine. The invention of the Turing Machine is done by Alan Turing in 1936. A Turing Machine (TM) is a diagrammatic model of a fictional computer. It determines an output from a set of input variables using a pre-defined set of rules. It is used to get around the limitations of finite automata and pushdown automata.

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