Computer Science Illuminated
Computer Science Illuminated
7th Edition
ISBN: 9781284155617
Author: Nell Dale, John Lewis
Publisher: Jones & Bartlett Learning
Question
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Chapter 11, Problem 43E

a.

Program Plan Intro

Directories:

  • A file system or a directory system is observed as a directory tree.
    • A tree structure which shows the directories and files in one more directory is called directory tree.
  • A directory system is used to manage the list of files in a computer.
  • The directory tree contains directories, files, and subdirectories. They are as follows:
    • The topmost level of the directory system is called root directory.
    • The directory which contains another directory is called the parent directory.
    • The directory which is contained within another directory is called sub directory.
    • The directory that is currently active (working) of all other directories is referred to as working directory.
  • The directory contains the information such as file name, location of the file, extension of the file, the size of the file, date created, and last modified date.
  • The diagrammatic representation shows the directory tree structure on windows environment as follows:

Computer Science Illuminated, Chapter 11, Problem 43E

Explanation of Solution

b.

Represent the name of the directory which is within another directory:

  • From the above directory tree structure, it clearly specifies that under the root directory “C:/”, there are two directories:
    • Windows
    • Program Files
  • The above two directories “Windows” and “Program Files” are called parent directories because they each contain another directory.
  • Under the parent directory “Windows”, the directories “Test” and “Downloads” are located...

Explanation of Solution

c.

Represent the name of the directory that is under any other directory:

  • From the above directory tree structure, it clearly specifies
    • “C:\” is the directory which acts as root for all the files, directories, and subdirectories...

Explanation of Solution

d.

Represent the name that shows the nested directory organization:

  • From the above diagram, it clearly specifies that under the root directory “C:/”, there are two directories:
    • Windows
    • Program Files
  • The above two directories “Windows” and “Program Files” are called parent directories because it contains another directory.
  • Under the parent directory “Windows”, the directories “Test” and “Downloads” are located. They are called subdirectories. Because it is located within the parent directory.
    • Under the subdirectory “Downloads”, the files are located...

Explanation of Solution

e.

Similarities of binary tree and directory tree structure:

  • The representation of directory tree and binary tree follows the hierarchical model...

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