Complete Solutions Manual & Answer Guide — Fundamentals of Python: First Programs, 3rd Edition — Kenneth A. Lambert, 2021 — ISBN 9780357881019 — All Chapters Covered 1–13 (Latest Update)

Fundamentals of Python:
First Programs – 3rd Edition
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SOLUTION
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MANUAL &
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ANSWER GUIDE
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Kenneth Lambert
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Comprehensive Solution Manual for
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Instructors and Students
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© Kenneth Lambert

All rights reserved. Reproduction or distribution without permission is prohibited.




©MedConnoisseur

, Solution and Answer Guide For All Chapters: Lambert, Fundamentals of Python: First Programs, 3e, CY24, 9780357881019; Chapter 1, Introduction




Solution and Answer Guide For All
Chapters
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LAMBERT, FUNDAMENTALS OF PYTHON: FIRST PROGRAMS, 3E, CY24, 9780357881019; CHAPTER 1,
INTRODUCTION


TABLE OF CONTENTS
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Exercise Solutions ....................................................................................................................................... 1
Exercise 1.1 ............................................................................................................................................... 1
Exercise 1.2 ............................................................................................................................................... 2
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Exercise 1.3 ............................................................................................................................................... 3
Review Questions Answers......................................................................................................................... 4
Programming Exercises Solutions ............................................................................................................. 8
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Debugging Exercises Solutions .................................................................................................................. 8




EXERCISE SOLUTIONS
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EXERCISE 1.1
1. List three common types of computing agents.

Solution:
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Human beings, desktop computers, cell phones

2. Write an algorithm that describes the second part of the process of making change (counting out the coins
and bills).
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Solution:

There are various ways to do this, but here is one:

Repeat
Select the largest unit of money that is less than or equal to the remaining change
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Subtract this unit from the remaining change
Until the remaining change is 0
The collection of units selected represent the change


3. Write an algorithm that describes a common task, such as baking a cake.




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, Solution and Answer Guide For All Chapters: Lambert, Fundamentals of Python: First Programs, 3e, CY24, 9780357881019; Chapter 1, Introduction


Solution:

There are various ways to do this, but here is one:

Preheat an oven to 375 degrees
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Add 1 cup of water and 1 egg to a mixing bowl
Beat the liquid mixture in the bowl until the ingredients are blended
Add the contents of a boxed cake mix to the mixing bowl
Beat the mixture in the bowl until the ingredients are blended
Pour the contents of the mixing bowl into a lightly greased cake pan
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Bake the cake in the oven for 45 minutes


4. Describe an instruction that is not well defined and thus could not be included as a step in an algorithm.
Give an example of such an instruction.
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Solution:

Attempting to divide a number by 0

5. In what sense is a laptop computer a general-purpose problem-solving machine?
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Solution:

A laptop computer is a general-purpose problem-solving machine because it is programmable and can
solve any problem for which there is an algorithm.
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6. List four devices that use computers and describe the information that they process. (Hint: Think of the
inputs and outputs of the devices.)

Solution:
Digital camera—images, music player—sound, cell phone—text, ATM—numbers
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EXERCISE 1.2
1. List two examples of input devices and two examples of output devices.

Solution:
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Input devices—keyboard and mouse, output devices—monitor and speakers


2. What does the central processing unit (CPU) do?

Solution:
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The CPU fetches, decodes, and executes instructions.


3. How is information represented in hardware memory?

Solution:
Information is represented using binary notation, which in hardware is a pattern of voltage levels.



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, Solution and Answer Guide For All Chapters: Lambert, Fundamentals of Python: First Programs, 3e, CY24, 9780357881019; Chapter 1, Introduction


4. What is the difference between a terminal-based interface and a graphical user interface?

Solution:
A terminal-based interface supports only the input and output of text with a keyboard and monitor. A
graphical user interface supports the output of images and the manipulation of them with a pointing device,
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the mouse.


5. What role do translators play in the programming process?
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Solution:
A translator converts a program written in a high-level language (human readable and writable) to an
equivalent program in a low-level language (machine readable and executable).


EXERCISE 1.3
1. Describe what happens when the programmer enters the string "Greetings!" in the Python shell.
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Solution:

Python reads the string "Greetings!", evaluates it, and displays this string (including single quotes)
in the shell.
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2. Write a line of code that prompts the user for their name and saves the user’s input in a variable called
name.
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Solution:
name = input("Enter your name: ")


3. What is a Python script?
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Solution:

A Python script is a complete Python program that can be run from a computer’s operating system.

4. Explain what goes on behind the scenes when your computer runs a Python program.

Solution:
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If the program has not already been translated, Python’s compiler translates it to byte code. The Python
virtual machine then executes this code.
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