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Q

Hard 3 Marks

Computer Studies Logic Gates & Boolean Algebra

What does the expression Y = (A · B) + C mean?

A Y is true only when A B and C are all true

B Y is true if both A and B are true OR if C is true

C Y is true only when C is true

D Y is always false when A is false

Y = (A · B) + C means the output Y is true if A AND B are both true OR if C alone is true. The AND is evaluated first due to brackets.

Reference: Computer Studies Textbook , Page 9

Evaluate the brackets first then apply the OR operation.