数字设计原理与实践（一）.

数字设计原理与实践（一）.
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Hi, I'm John . . . .




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Introduction
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elcome to the world of digital design. Perhaps you’re a com-


W puter science student who knows all about computer software
and programming, but you’re still trying to figure out how all
that fancy hardware could possibly work. Or perhaps you’re


COPY an electr