Chapter 12: Q1E (page 827)
In Exercises 1–5 find the output of the given circuit.
Short Answer
The output of the circuit is\({\bf{(x + y)}}\overline {\bf{y}} \).
Chapter 12: Q1E (page 827)
In Exercises 1–5 find the output of the given circuit.
The output of the circuit is\({\bf{(x + y)}}\overline {\bf{y}} \).
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Get started for freeDraw the \({\bf{K}}\)-maps of these sum-of-products expansions in three variables.
\(\begin{array}{l}{\bf{a) x\bar y\bar z}}\\{\bf{b) \bar xyz + \bar x\bar y\bar z}}\\{\bf{c) xyz + xy\bar z + \bar xy\bar z + \bar x\bar yz}}\end{array}\)
Show how the sum of two five-bit integers can be found using full and half adders.
Find the duals of these Boolean expressions.
\(\begin{array}{l}{\bf{a) x + y}}\\{\bf{b) \bar x\bar y}}\\{\bf{c) xyz + \bar x\bar y\bar z}}\\{\bf{d) x\bar z + x \times 0 + \bar x \times 1}}\end{array}\)
Find the sum-of-products expansion of the Boolean function F (\({{\bf{x}}_{\bf{1}}}{\bf{,}}{{\bf{x}}_{\bf{2}}}{\bf{,}}{{\bf{x}}_{\bf{3}}}{\bf{,}}{{\bf{x}}_{\bf{4}}}{\bf{,}}{{\bf{x}}_{\bf{5}}}\)) that has the value 1 if and only if three or more of the variables \({{\bf{x}}_{\bf{1}}}{\bf{,}}{{\bf{x}}_{\bf{2}}}{\bf{,}}{{\bf{x}}_{\bf{3}}}{\bf{,}}{{\bf{x}}_{\bf{4}}}{\bf{,}}{{\bf{x}}_{\bf{5}}}\) have the value 1.
Find a Boolean product of Boolean sums of literals that has the value 0 if and only if \({\bf{x = y = 1}}\) and \({\bf{z = 0,x = z = 0}}\) and \({\bf{y = 1}}\), or \({\bf{x = y = z = 0}}\). (Hint: Take the
Boolean product of the Boolean sums found in parts (a), (b), and (c) in Exercise 7.)
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