Answered: In the study of formal languages…

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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In the study of formal languages state-transition diagrams are often used
to visualize changes in a machine’s configuration as it acts on input. To visualize a
machine’s configuration think of its parts: Commonly a finite set of states, a finite
input alphabet Σ, Perhaps storage devices (a stack, input/output tapes). The states are
pictured as named circles sometimes decorated with symbols to denote special states,
e.g. start and final states. Changes in configuration are denoted by labeled edges and
perhaps changes in storage.
1. Describe how edges are labeled and their meaning for finite state machines.
2. Describe how edges are labeled and their meaning for pushdown automata.
3. Describe how edges are labeled and their meaning for Turing machines.

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