Invitation to Computer Science 8th Edition

Published by Cengage Learning
ISBN 10: 1337561916
ISBN 13: 978-1-33756-191-4

Chapter 1 - Exercises - Page 39: 1


A perfect example is a process of preparing coffee using the pour-over method. It consists of well-defined steps in a well-defined order. Each of the steps is crucial for achieving the desired final result.

Work Step by Step

Almost every activity that we perform could be boiled down to a sequence of steps. A good example is the making of a pour over coffee. It is a good example of an algorithm because each step is crucial to achieving a good cup of coffee. Omitting even one of the steps or making a mistake won't lead you to the same result. Here is an algorithm for making pour-over coffee. Step 1 Fill up the kettle with water and put it on the stove to boil. Step 2 Prepare your setup by putting the coffee dripper onto the mug or any suitable vessel. Step 3 Soak the filter with hot water in order to avoid a papery taste. Step 4 Let the boiled water cool to suitable brewing temperature. Step 5 Add the desired amount of coffee grounds to the filter. Step 6 Pour a little water over the grounds and let the gases escape. Step 7 Pour the rest of the water over the grounds in a spiral pattern and don't let the water pour directly onto the filter. Step 8 Wait for the water to drain. Step 9 Clean your tools. Step 10 Enjoy the coffee.
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