In: Computer Science
Describe combinational and sequential logic
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.