The sounds we make with our mouths to form words are a code intelligible to anyone who can hear our voices and understands the language that we speak. A code is useful if it performs a task that other codes fail to do. Best FriendsĪ code is a system for exchanging information between humans and machines, that is, a means of communication. At the end of the first part of the outline we will build a circuit that will be able to count from 0 to 256 □ Chapter 1. Starting from chapter 4 we will start building electrical circuits with light bulbs, and starting from chapter 10 we will start building logical circuits. We will learn what exactly Petzold means by a code and why binary codes are special. In Part I of this summary, we will look at Chapters 1-14. He writes bluntly that “the computer is a hierarchy with transistors at the base and information displayed on the monitor at the top”-and this is what the book is about. Petzold tries to avoid “elaborate metaphors and comparisons”. In other languages: ru Code by Charles PetzoldĪs the author says in the introduction, this is a book about how computers work.
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