INTRODUCTION TO MICROPEOCESSOR
MICROPROCESSOR BASICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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state-deficiency
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feedback-absence
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none of the two
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both of them
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Detailed explanation-1: -The combinational circuit is time-independent. The output it generates does not depend on any of its previous inputs. On the other hand, sequential circuits are the ones that depend on clock cycles. They depend entirely on the past as well as the present inputs for generating output.
Detailed explanation-2: -An example of combination circuits is Parallel adder, Code converter, Decoder, etc. An example of the sequential circuit is Serial Adder, Counter, shift register, etc. The clock signal is not applied in the combinational circuit. The clock signal is needed for sequential circuits.
Detailed explanation-3: -Essential Hazards Another type of hazard that may occur in asynchronous sequential circuits is called an essential hazard. This type of hazard is caused by unequal delays along two or more paths that originate from the same input.
Detailed explanation-4: -Flip flop is a sequential circuit which generally samples its inputs and changes its outputs only at particular instants of time and not continuously.