Multiple choice

The outputs of a sequential circuit depends on

  1. present inputs only

  2. past inputs only

  3. both present and past inputs

  4. none of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sequential circuits have memory (feedback), so their output depends on both present inputs and past state (which encodes history of past inputs). The past inputs are not stored directly but are represented in the current state of flip-flops. This is what distinguishes sequential circuits from combinational circuits, which depend only on present inputs.

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