Digital Logic 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 Design flashcards as text
What is the key difference between a latch and a flip-flop?
Answer: Latches are level-triggered; flip-flops are edge-triggered
Latches are level-sensitive (transparent when enabled) while flip-flops are edge-triggered, changing state only on the rising or falling edge of a clock signal.
In a full adder, how many inputs does it have?
Answer: 3
A full adder has three inputs: two significant bits (A and B) and a carry-in (Cin), producing a Sum and a Carry-out.
What does a multiplexer (MUX) do?
Answer: Selects one of several input signals and forwards it to a single output
A multiplexer selects one of its 2^n data inputs based on n select lines and routes it to a single output, acting like a digitally controlled switch.
Which type of counter counts in a sequence where only one bit changes between consecutive states?
Answer: Gray code counter
A Gray code counter changes only one bit per step, reducing switching noise and glitches compared to a standard binary counter.
What is the fan-out of a logic gate?
Answer: The maximum number of gate inputs the output can reliably drive
Fan-out specifies how many logic gate inputs a single gate's output can drive while maintaining valid logic levels.
What is the function of a decoder in digital logic?
Answer: Convert an n-bit binary input into one of 2^n output lines
A decoder takes n binary input lines and activates exactly one of its 2^n output lines based on the binary value of the input.
How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. We have not yet matched this exam's facts to an official source, so confirm fees, dates and rules with the exam body. Not reviewed by a subject-matter expert. Editorial policy