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Hard 3 Marks

Computer Studies Logic Gates & Boolean Algebra

What is the key difference between combinational and sequential circuits?

A Combinational circuits are faster than sequential circuits

B Sequential circuits use only AND and OR gates while combinational use NOT

C Combinational circuits have no memory; sequential circuits include memory elements

D Sequential circuits can only count; combinational circuits only add

Explanation

Combinational circuits have no memory — output depends only on current inputs. Sequential circuits include memory elements (flip-flops) and depend on both current inputs and previous outputs.

Reference: Computer Studies Textbook , Page 10

Hint

What do sequential circuits have that combinational circuits do not?

Explanation

Hint

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