UNIT 2 Digital logic circuit

2 Column CSS Layout - concise design

Boolean Theorems:

DeMorgans Theorems

He suggest tha two teoream that forms an important part of Boolean algebra.

In the equation form

1 . `A`B   = `A   + `B

The complement of the product is equal to the sum of the complements.

A

B

`A`B  

`A  + `B

0

0

1

1

0

1

1

1

1

0

1

1

1

1

0

0

 

2 . `A   + `B =`A`B  

The complement of the sum is equal to the product of the complements.

A

B

A  + `B

A`B  

0

0

1

1

0

1

0

0

1

0

0

0

1

1

0

0