System Stacks and Operating Systems Quiz

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Questions and Answers

What is an example of a stack as mentioned in the text?

  • Memory allocation in a database
  • Data structure in a programming language
  • File storage in a computer system
  • Page-visited history in a web browser (correct)

How is the stack organized in a 64-bit system?

  • Stack grows towards higher addresses (correct)
  • Stack stores data in a separate memory buffer
  • Stack grows towards lower addresses
  • Stack maintains a fixed location pointer

What happens if the data stored in a stack exceeds the allocated space?

  • The stack automatically expands to accommodate the data
  • The excess data is truncated without any error
  • A stack overflow error occurs (correct)
  • The excess data is automatically shifted to another memory location

What is the purpose of the stack in relation to subroutines?

<p>Essential for subroutines to work (C)</p> Signup and view all the answers

What is the characteristic of stacks as abstract data structures?

<p>Assumed to be infinitely deep (D)</p> Signup and view all the answers

What is the purpose of the stack in a processor?

<p>To store integers and support subroutines (C)</p> Signup and view all the answers

How is the stack organized in a 64-bit system?

<p>It grows towards higher addresses (D)</p> Signup and view all the answers

What happens if the data stored in a stack exceeds the allocated space?

<p>A stack overflow error occurs (C)</p> Signup and view all the answers

What is the role of the stack pointer (SP) in a stack?

<p>It gives the location of the top of the stack (C)</p> Signup and view all the answers

What is the characteristic of stacks as abstract data structures?

<p>Assumed to be infinitely deep but implemented using finite memory buffers (C)</p> Signup and view all the answers

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Study Notes

Stack Example

  • An example of a stack is a plate stack, where plates are added and removed from the top of the stack.

Stack Organization

  • In a 64-bit system, the stack is organized in a Last-In-First-Out (LIFO) order, where the most recent item added to the stack is the first one to be removed.
  • The stack grows downward, with the top of the stack having the lowest memory address.

Stack Overflow

  • If the data stored in a stack exceeds the allocated space, a stack overflow occurs, which can lead to program crashes or unexpected behavior.

Subroutine Purpose

  • The purpose of the stack in relation to subroutines is to store the return address and local variables, allowing the program to return to the correct location and retain its state after the subroutine is completed.

Abstract Data Structure

  • As an abstract data structure, a stack is characterized by its Last-In-First-Out (LIFO) ordering, where items are added and removed from the top of the stack.

Processor Purpose

  • The purpose of the stack in a processor is to facilitate the execution of subroutines and function calls by storing and retrieving data and program control information.

Stack Pointer

  • The stack pointer (SP) is a register that keeps track of the top of the stack, pointing to the most recent item added to the stack.

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