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9HOW CIRCUITS UNDERSTAND ONES AND ZEROS

Mobile phones, computers, TVs, video game consoles, and almost all the other technology you see around you is built with digital electronics. If you’ve ever looked inside a computer, the circuits might seem complex, but when you break that hardware down into small pieces, it’s actually quite simple: every action a computer takes is based on whether some circuit sees a high or low voltage.

You’ve used transistors to make circuits that control things, and in this chapter, you’ll learn the basics of using digital electronics to make even smarter circuits. You’re going to learn a new number system, what bits ...

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