Minggu, 23 Oktober 2011

Ring Counter

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Selasa, 18 Oktober 2011

Astable Multivibrator

Astable multivibrator is a circuit to produce a square-wave or pulse at the output. Application of astable multivibrator is flip - flop, etc.

RA, RB, and C used to control output.
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Senin, 17 Oktober 2011


Two of the most important theorems of Boolean algebra were contributed by a great mathematician named DeMorgan. DeMorgan’s Theorems are extremely useful in simplifying expressions in which a product or sum of variables is inverted. The two theorems are:

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Kamis, 13 Oktober 2011


We have seen how Boolean algebra can be used to help analyze a logic circuit and express its operation mathematically. We will continue our study of Boolean algebra by investigating the various Boolean  theorems that can help us to simplify logic expressions and logic circuits. The first group of theorems is given in Figure 1. In each theorem, x is a logic variable that can be either a 0 or a 1.

Figure 1.single-variable theorems


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