Hi,I'm John. O NOT COPY Introduction elcome to the world of digital design.Perhaps you're a com outer science student who computer s trying to figure out how all that fancy hardware could possibly work.Or perhaps you're an electrical engineering student who already knows some- thing about analog electronics and circuit design,but you wouldn't know a bit if it bit you.No matter.Starting from a fairly basic level,this book will show you how to design digital circuits and subsystems. We'll give you the basic principles that you need to figure things out. 会二。 ou lots of examples.Along with principles,we'll try to di nt ible.And I,the autho will often walking through the learning process together. 1.1 About Digital Design Some people call it"logic design."That's OK,but ultimately the goal of design is to build systems.To that end,we'll cover a whole lot more in this text than just logic equations and theorems. This book claims to be about principles and practices.Most of the prin- ciples that we present will continue to be important years from now;some Copyright1999 by John F.Wakerly Copying ProhibitedDO NOT COPY DO NOT COPY DO NOT COPY DO NOT COPY DO NOT • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Copyright © 1999 by John F. Wakerly Copying Prohibited 1 chapter 1 Introduction elcome to the world of digital design. Perhaps you’re a com￾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 an electrical engineering student who already knows some￾thing about analog electronics and circuit design, but you wouldn’t know a bit if it bit you. No matter. Starting from a fairly basic level, this book will show you how to design digital circuits and subsystems. We’ll give you the basic principles that you need to figure things out, and we’ll give you lots of examples. Along with principles, we’ll try to convey the flavor of real-world digital design by discussing current, practical considerations whenever possible. And I, the author, will often refer to myself as “we” in the hope that you’ll be drawn in and feel that we’re walking through the learning process together. 1.1 About Digital Design Some people call it “logic design.” That’s OK, but ultimately the goal of design is to build systems. To that end, we’ll cover a whole lot more in this text than just logic equations and theorems. This book claims to be about principles and practices. Most of the prin￾ciples that we present will continue to be important years from now; some W Hi, I'm John . . .