It is used as a memory device to store data in digital circuits. It is used for arithmetic and boolean operations. It has flip-flops as memory elements, so it can store the previous output in it. It does not have any memory elements, so it cannot store data. Its elementary building blocks are flip-flops i.e. Its elementary building blocks are l ogic gates i.e. It is c omplex to build and also complex to use compared to combinational circuits. It is easy to build and easy to use and handle. Its performance is slow in speed compared to combinational circuits because it uses present input as well as previous output to give output. Its performance is fast in speed compared to sequential circuits because it only uses present input to give present output. This feedback path is used to get previous output and provide present output. It has a feedback path from output to input. These are the types of circuits that give output depending upon present input and previous output. These are the types of circuits that give output depending only on present input. Combinational circuit VS Sequential circuit Basis of Comparison
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