Question

Describe combinational and sequential logic

Answer 1

Combinational Circuit:-

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It Consists of input variables,logic Gates and output variables. Combinational logic gates reacts to the values of signals al their input and produce output values. . thus they transform binary input to binary output.

For n numbers of input variables their are possible binary output combination for each input combination their in one possible output.

Sequential Circuit:-

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It consists of a combinational circuit to which the storage element are connected yo form a feedback path.

these storage element is capabale of storing binary information. the binary information stored in this element at any given time defines a state of sequential circuit at that time

Q(t) is present state and Q(t+1) is next state

hence in Sequential Circuit output is depend on present input and previous state output.