280 DIGITAL BUILDING BLOCKS AND COMPUTER SYSTEMS
EXAMPLE 6.1.6(a) Express DeMorgan’s laws given byX+Y=X·Y and X·Y=X+Yin terms of logic gates.(b) Express the sum of products given by (X·Y)+(W·Z) and the product of sums given
by (A+B)·(C+D) in terms of logic gates.Solution(a) Figures E6.1.6(a) and (b) show the solution.
(b) Figures E6.1.6(c) and (d) show the solution.Figure E6.1.6