Solution Manual for Fundamentals of Python First Programs, 3rd Edition Kenneth A. Lambert-1. List three common types of computing agents.
Solution:
Human beings, desktop computers, cell phones
2. Write an algorithm th
...
Solution Manual for Fundamentals of Python First Programs, 3rd Edition Kenneth A. Lambert-1. List three common types of computing agents.
Solution:
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).
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
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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website, in whole or in part.
Solution:
There are various ways to do this, but here is one:
Preheat an oven to 375 degrees
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
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.
Solution:
Attempting to divide a number by 0
5. In what sense is a laptop computer a general-purpose problem-solving machine?
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.
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
EXERCISE 1.2
1. List two examples of input devices and two examples of output devices.
Solution:
Input devices—keyboard and mouse, output devices—monitor and speakers
2. What does the central processing unit (CPU) do?
Solution:
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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