Same chapter3 marksDifficulty: Medium
Draw the truth table of a full adder and state how many half adders it takes to build one.
Combinational and Sequential Logic Circuits
3 marksDifficulty: Medium
What is a flip-flop and how does it differ from a combinational circuit?
Original Khojo Papers practice question — not from a past board paper.
Answer
A flip-flop is a bistable circuit that can store one bit and stays in its state until an input changes it. It differs from a combinational circuit in that its output depends on the past history of the inputs as well as their present values, so it has memory.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
This is why flip-flops are the building blocks of registers and counters.
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