Pushdown Automaton and Turing Machine Lecture
15 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is a pushdown automaton (PDA)?

  • A type of finite state machine with a control unit and input tape
  • An automaton with a fixed amount of information storage
  • A way to implement a context-free grammar with a stack for memory (correct)
  • A machine with infinite memory for recognizing regular grammars

    • What does a pushdown automaton (PDA) have in addition to a finite state machine?

  • Extra memory for recognizing regular grammars
  • An input tape, control unit, and a stack with infinite size (correct)
  • A fixed amount of information storage
  • A stack head for scanning the top symbol of the stack

    • What does the stack of a pushdown automaton do?

  • A fixed amount of memory
  • Scan the bottom symbol of the stack
  • Push: add a new symbol at the top, Pop: read and remove the top symbol (correct)
  • Remember a finite amount of information

    • What operation does a pushdown automaton (PDA) have to perform in every transition?

    <p>Read the top of the stack</p> Signup and view all the answers

    How does a pushdown automaton (PDA) differ from a DFA?

    <p>A PDA can remember an infinite amount of information with a stack</p> Signup and view all the answers

    In the context of pushdown automaton (PDA), what is the main purpose of the stack?

    <p>To remember an infinite amount of information</p> Signup and view all the answers

    What are the three main components of a pushdown automaton (PDA)?

    <p>Input tape, control unit, and stack with infinite size</p> Signup and view all the answers

    What type of operation does the stack perform in a pushdown automaton?

    <p>Push and Pop</p> Signup and view all the answers

    What does a pushdown automaton (PDA) have in addition to a finite state machine?

    <p>A stack with infinite size</p> Signup and view all the answers

    What does the stack head of a pushdown automaton scan in every transition?

    <p>The top symbol of the stack</p> Signup and view all the answers

    What is the main purpose of the stack in a pushdown automaton (PDA)?

    <p>To store an infinite amount of information</p> Signup and view all the answers

    What are the three main components of a pushdown automaton (PDA)?

    <p>Input tape, control unit, stack</p> Signup and view all the answers

    In a pushdown automaton (PDA), what does the stack head scan in every transition?

    <p>The top symbol of the stack</p> Signup and view all the answers

    What type of operation does the stack perform in a pushdown automaton (PDA)?

    <p>Push and pop</p> Signup and view all the answers

    How does a pushdown automaton (PDA) differ from a deterministic finite automaton (DFA)?

    <p>PDA can remember an infinite amount of information with a stack</p> Signup and view all the answers

    More Like This

    Theory of Computation Quiz
    5 questions

    Theory of Computation Quiz

    CharismaticHyena avatar
    CharismaticHyena
    Theory of Computation Lecture 09 Quiz
    15 questions

    Theory of Computation Lecture 09 Quiz

    ThrivingEnlightenment avatar
    ThrivingEnlightenment
    Theory of Computation Chapter 1
    18 questions

    Theory of Computation Chapter 1 Quiz: Test Your Knowledge

    PleasurableBasil avatar
    PleasurableBasil
    Theory of Computation Lecture 10
    5 questions

    Theory of Computation Lecture 10

    StylishSpessartine avatar
    StylishSpessartine
    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser