Digital Logic and Circuit Design Flashcards
6 cards from real B CompE Bachelor of Computer Engineering practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Digital Logic and Circuit Design flashcards as text
Which logic gate produces an output of 1 only when all inputs are 1?
Answer: AND gate
An AND gate outputs 1 (HIGH) only when all of its inputs are simultaneously 1; otherwise it outputs 0.
What is the decimal equivalent of the binary number 1011?
Answer: 11
Binary 1011 = 1x8 + 0x4 + 1x2 + 1x1 = 8 + 0 + 2 + 1 = 11 in decimal.
Which of the following is a minimization technique for Boolean expressions?
Answer: Karnaugh Map (K-map)
A Karnaugh Map (K-map) is a visual method for simplifying Boolean expressions by grouping adjacent minterms.
What type of logic circuit has its output depend only on the current inputs with no memory?
Answer: Combinational Circuit
A combinational circuit produces outputs determined solely by current inputs, with no feedback or memory elements.
Which flip-flop sets output Q=1 on S=1,R=0, and resets Q=0 on S=0,R=1?
Answer: SR Flip-Flop
The SR (Set-Reset) flip-flop sets Q to 1 when S=1,R=0 and resets Q to 0 when S=0,R=1; the S=R=1 state is invalid.
What is the output of an XOR gate when both inputs are equal?
Answer: 0
An XOR gate outputs 0 when both inputs are the same (both 0 or both 1) and outputs 1 only when inputs differ.
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