Solution Manual for Fundamentals of Python: First Programs, 3rd Edition by Kenneth A. Lambert.

SolutionvandvAnswervGuidevForvAllvChapters:vLambert,vFundamentalsvofvPython:vFirstvPrograms,v3e,vCY24,v9780357881019;vChapterv1,vIntroductio
n



Solution and Answer Guide For All Chapters
v v v v v v


LAMBERT, FUNDAMENTALS OF PYTHON: FIRST PROGRAMS, 3E, CY24, 9780357881019; CHAPTER 1, INTR
V V V V V V V V V V V


ODUCTION



TABLE OF CONTENTS V V




ExercisevSolutions ........................................................................................................................................ 1
Exercisev1.1 ............................................................................................................................................... 1
Exercisev1.2 ............................................................................................................................................... 2
Exercisev1.3 ............................................................................................................................................... 3
ReviewvQuestionsvAnswers ......................................................................................................................... 4
ProgrammingvExercisesvSolutions.............................................................................................................. 8
DebuggingvExercisesvSolutions ................................................................................................................... 8




EXERCISE SOLUTIONS V




EXERCISE 1.1 V


1. v Listvthreevcommonvtypesvofvcomputingvagents.

Solution:

Humanvbeings,vdesktopvcomputers,vcellvphones

2. Writevanvalgorithmvthatvdescribesvthevsecondvpartvofvthevprocessvofvmakingvchangev(countingvoutvthevcoins
vand vbills).



Solution:

Therevarevvariousvwaysvtovdovthis,vbutvherevisvone:

Repeat
Selectvthevlargestvunitvofvmoneyvthatvisvlessvthanvorvequalvtovthevremainingvchange
vSubtractvthisvunitvfromvthevremainingvchange

Untilvthevremainingvchangevisv0
Thevcollectionvofvunitsvselectedvrepresentvthevchange


3. Writevanvalgorithmvthatvdescribesvavcommonvtask,vsuchvasvbakingvavcake.




©v2024vCengage.vAllvRightsvReserved.vMayvnotvbevscanned,vcopiedvorvduplicated,vorvpostedvtovavpubliclyvaccessib 1
le
website,vinvwholevorvinvpart.

,SolutionvandvAnswervGuidevForvAllvChapters:vLambert,vFundamentalsvofvPython:vFirstvPrograms,v3e,vCY24,v9780357881019;vChapterv1,vIntroductio
n

Solution:

Therevarevvariousvwaysvtovdovthis,vbutvherevisvone:

Preheatvanvovenvtov375vdegrees
Addv1vcupvofvwatervandv1veggvtovavmixingvbowl
BeatvthevliquidvmixturevinvthevbowlvuntilvthevingredientsvarevblendedvAd
dvthevcontentsvofvavboxedvcakevmixvtovthevmixingvbowl
Beatvthevmixturevinvthevbowlvuntilvthevingredientsvarevblended
Pourvthevcontentsvofvthevmixingvbowlvintovavlightlyvgreasedvcakevpanv
Bakevthevcakevinvthevovenvforv45vminutes


4. Describevanvinstructionvthatvisvnotvwellvdefinedvandvthusvcouldvnotvbevincludedvasvavstepvinvanvalgorithm.
vGivevanvexample vofvsuchvanvinstruction.



Solution:

Attemptingvtovdividevavnumbervbyv0

5. Invwhatvsensevisvavlaptopvcomputervavgeneral-purposevproblem-solvingvmachine?

Solution:

Avlaptopvcomputervisvavgeneral-purposevproblem-
solvingvmachinevbecausevitvisvprogrammablevandvcanvsolvevanyvproblemvforvwhichvtherevisvanvalgorithm.


6. Listvfourvdevicesvthatvusevcomputersvandvdescribevthevinformationvthatvtheyvprocess.v(Hint:vThinkvofvthev
inputsvandvoutputsvofvthevdevices.)

Solution:
Digitalvcamera—images,vmusicvplayer—sound,vcellvphone—text,vATM—numbers



EXERCISE 1.2 V


1. Listvtwovexamplesvofvinputvdevicesvandvtwovexamplesvofvoutputvdevices.

Solution:
Inputvdevices—keyboardvandvmouse,voutputvdevices—monitorvandvspeakers


2. Whatvdoesvthevcentralvprocessingvunitv(CPU)vdo?

Solution:
ThevCPUvfetches,vdecodes,vandvexecutesvinstructions.


3. Howvisvinformationvrepresentedvinvhardwarevmemory?

Solution:
Informationvisvrepresentedvusingvbinaryvnotation,vwhichvinvhardwarevisvavpatternvofvvoltagevlevels.



©v2024vCengage.vAllvRightsvReserved.vMayvnotvbevscanned,vcopiedvorvduplicated,vorvpostedvtovavpubliclyvaccessib 2
le
website,vinvwholevorvinvpart.

,SolutionvandvAnswervGuidevForvAllvChapters:vLambert,vFundamentalsvofvPython:vFirstvPrograms,v3e,vCY24,v9780357881019;vChapterv1,vIntroductio
n

4. Whatvisvthevdifferencevbetweenvavterminal-basedvinterfacevandvavgraphicalvuservinterface?

Solution:
Avterminal-
basedvinterfacevsupportsvonlyvthevinputvandvoutputvofvtextvwithvavkeyboardvandvmonitor.vAvgraphicalvuservint
erfacevsupportsvthevoutputvofvimagesvandvthevmanipulationvofvthemvwithvavpointingvdevice,vthevmouse.


5. Whatvrolevdovtranslatorsvplayvinvthevprogrammingvprocess?

Solution:
Avtranslatorvconvertsvavprogramvwrittenvinvavhigh-
levelvlanguagev(humanvreadablevandvwritable)vtovanvequivalentvprogramvinvavlow-
levelvlanguagev(machinevreadablevandvexecutable).


EXERCISE 1.3 V


1. Describevwhatvhappensvwhenvthevprogrammerventersvthevstringv"Greetings!"vinvthevPythonvshell.

Solution:

Pythonvreadsvthevstringv"Greetings!",vevaluatesvit,vandvdisplaysvthisvstringv(includingvsinglevquotes)vi
nvthevshell.


2. Writevavlinevofvcodevthatvpromptsvthevuservforvtheirvnamevandvsavesvthevuser’svinputvinvavvariablevcalled
name.

Solution:
namev=vinput("Entervyourvname:v")


3. WhatvisvavPythonvscript?

Solution:

AvPythonvscriptvisvavcompletevPythonvprogramvthatvcanvbevrunvfromvavcomputer’svoperatingvsystem.

4. ExplainvwhatvgoesvonvbehindvthevscenesvwhenvyourvcomputervrunsvavPythonvprogram.

Solution:

Ifvthevprogramvhasvnotvalreadyvbeenvtranslated,vPython’svcompilervtranslatesvitvtovbytevcode.vThevPythonvvir
tualvmachinevthenvexecutesvthisvcode.




©v2024vCengage.vAllvRightsvReserved.vMayvnotvbevscanned,vcopiedvorvduplicated,vorvpostedvtovavpubliclyvaccessib 3
le
website,vinvwholevorvinvpart.

, SolutionvandvAnswervGuidevForvAllvChapters:vLambert,vFundamentalsvofvPython:vFirstvPrograms,v3e,vCY24,v9780357881019;vChapterv1,vIntroductio
n


REVIEW QUESTIONS ANSWERS
V V




1. Whichvofvthevfollowingvisvanv examplevofvanvalgorithm?

a. Avdictionary

b. Avrecipe

c. Avshoppingvlist

d. Thevspellingvcheckervofvavwordvprocessor

Answer:vb

Feedback:
a. Incorrect.vAvdictionaryvisvavdatavstructure.
b. Correct.vAvrecipevisvavsetvofvinstructionsvthatvdescribesvavprocessvthatvhaltsvwithvavsolutionvtovavproblem.
c. Incorrect.vAvshoppingvlistvisvavdatavstructure.
d. Incorrect.v Avwordvprocessorvisvavprogramvthatvconsistsvofvinstructionsvandvdata.



2. Whichvofvthevfollowingvcontainsvinformation?

a. AnvaudiovCD

b. Avrefrigerator

c. Anvautomobile

d. Avstereovspeaker

Answer:vavFeedbac
v



k:

a. Correct.vThevinformationvonvanvaudiovCDvrepresentsvsound.
b. Incorrect.vAvrefrigeratorvcontainsvjustvfood,vifvit’svnotvempty.
c. Incorrect.vAnvautomobilevcontainsvavsteeringvwheel,vengine,vexhaustvpipe,vandvsovon.
d. Incorrect.vAvstereovspeakervcontainsvavmagneticvcoil,vwires,vandvsovon.



3. Whichvofvthevfollowingvisvavgeneral-purposevcomputingvdevice?

a. Avsmartphone

b. Avportablevmusicvplayer

c. Avmicrowavevoven

d. Avprogrammablevthermostat



©v2024vCengage.vAllvRightsvReserved.vMayvnotvbevscanned,vcopiedvorvduplicated,vorvpostedvtovavpubliclyvaccessib 4
le
website,vinvwholevorvinvpart.