4DIGITAL CIRCUITS

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Thus far, we’ve covered two aspects of computing. First, computers work in a binary system of 0s and 1s. Second, computers are electronic devices built upon electrical circuits. Now it’s time to bring those two aspects of computing together. In this chapter we define what it means for an electrical circuit to be digital. We look at approaches for implementing digital circuits, including the role that transistors play. Finally, we examine logic gates and integrated circuits, the building blocks of more complex components that we’ll cover in the chapters ahead.

What Is a Digital Circuit?

You may have noticed that the circuits ...

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