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Unit 2 · Computer System Architecture Paper 2 CS · June 2024 Re-Exam

Match List I (Counter) with List II (uses/working)
List IList II
(A) N-bit Ring Counter(I) Uses universal clock
(B) Synchronous Counter(II) Counts exactly N states
(C) Asynchronous Counter(III) Counts 0 to 9
(D) Decimal Counter(IV) Main clock is applied to the first flip-flop only

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Correct answer: C. (A)-(II), (B)-(I), (C)-(IV), (D)-(III)

Explanation

An N-bit ring counter has exactly N states (A-II). A synchronous counter clocks all flip-flops from a common clock (B-I). In an asynchronous (ripple) counter the clock goes only to the first flip-flop (C-IV). A decade counter counts 0–9 (D-III).

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