© Stefan Kaczmarek, Brad Lees, Gary Bennett 2019
Stefan Kaczmarek, Brad Lees and Gary BennettSwift 5 for Absolute Beginnershttps://doi.org/10.1007/978-1-4842-4868-3_3

3. It’s All About the Data

Stefan Kaczmarek1 , Brad Lees1 and Gary Bennett2
Phoenix, AZ, USA
Scottsdale, AZ, USA

As you probably know, data is stored as zeros and ones in your computer’s memory. However, zeros and ones are not very useful to developers or app users, so you need to know how your program uses data and how to work with the data that is stored.

In this chapter, you look at how data is stored on computers and how you can manipulate that data. You then use playgrounds to learn more about data storage.

Numbering Systems Used in Programming

Computers work with information ...

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