**(i) ****No. of inputs and outputs**

Number of inputs = 4

Number of outputs = 5

**(ii) ****Assigning letter symbols**

Symbols of inputs – B_{4}, B_{3}, B_{2}, B_{1}

Symbols of outputs – A, B, C, D, E Continue reading

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**(i) ****No. of inputs and outputs**

Number of inputs = 4

Number of outputs = 5

**(ii) ****Assigning letter symbols**

Symbols of inputs – B_{4}, B_{3}, B_{2}, B_{1}

Symbols of outputs – A, B, C, D, E Continue reading

NAND and NOR logic gates are also known as universal gates . Any combinational and sequential logic can be implemented using NAND and NOR gates. Even the flip flop circuits are constructed using universal gates.

**NAND**

The equivalent operations of NOT, AND and OR gates using NAND gates are shown below Continue reading

JK flip flop is modified RS flip flop. The inputs R and S are ANDed with Q and Q’ respectively to form the inputs of JK flip flop. Its operation remains same as RS flip flop except when both inputs are 1.The indeterminate state, i.e. when R=1, S=1, is eliminated in JK flip flop and the output toggles or complements its state when J=1, K=1.

**(i) ****No. of inputs and outputs**

Number of inputs = 4

Number of outputs = 4

**(ii)****Assigning letter symbols**

Symbols of inputs – A, B, C, D

Symbols of outputs – W, X, Y, Z

**(iii)****Truth table**

**De Morgan’s law**

**(i)Statement**

The theorem states that the complement of sum of variables is equal to the product of their individual complements.