MCQ IN COMPUTER SCIENCE & ENGINEERING

COMPUTER SCIENCE AND ENGINEERING

COMPUTER ARCHITECTURE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Simplified form of the boolean expression (X + Y + XY) (X + Z) is
A
X + Y + Z
B
XY + YZ
C
X + YZ
D
XZ + Y
Explanation: 

Detailed explanation-1: -Y = Y. Hence, the reduced form of the Boolean expression A = XY + X(Y+Z) + Y(Y+Z) is A = Y+XZ.

Detailed explanation-2: -The Karnaugh map (K–map), introduced by Maurice Karnaughin in 1953, is a grid-like representation of a truth table which is used to simplify boolean algebra expressions. A Karnaugh map has zero and one entries at different positions.

Detailed explanation-3: -It is known that the product of two values can be established by the conjunction of x and y. And the sum of two values can be established by the disjunction of x and y. The result of the proposition is shown in the truth below. Hence, the value of the Boolean function xy + xz is 11100000.

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