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Compare combinational and sequential logic circuits.

Subject: Logic Design

Topic: Biasing of BJT

Difficulty: Medium

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Combinational Logic Sequential Logic
Combinational logic is used to implement basic Boolean operations Sequential logic is used to create memory elements.
Combinational logic uses only the present inputs to determine the output. Sequential logic uses both present inputs as well as previous outputs to determine the current input.
Combinational logic,does not require feedbacks. Sequential logic uses the feedbacks from the output to inputs.
Combinational logic circuits do not have the ability to retain data. Sequential Logic Circuits have a memory.
Combinational logic circuits are built with logic gates as the elementary device. Sequential logic circuits have Flip-Flops as the elementary building unit.
Combinational logic does not have clocks. Most sequential circuits are clocked
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