3.4.1   Introduction

In this chapter, so far we have focused on Boolean expressions and their relationship to digital circuits. Minimizing these circuits helps reduce the number of components in the actual physical implementation. Having fewer components allows the circuitry to operate faster.

Reducing Boolean expressions can be done using Boolean identities; however, using identities can be difficult because no rules are given on how or when to use the identities, and there is no well-defined set of steps to follow. In one respect, minimizing Boolean expressions is very much like doing a proof: You know when you are on the right track, but getting there can sometimes be frustrating and time consuming. In this section, ...

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