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Description: This gate is fundamental of any operation where output is dependent on addition of all binary inputs.

Output = Input1 + Input2 …….. + Input N

Where, outputs and inputs are all in binary values ’1’ or ’0’

Description: This gate is fundamental of any operation where output is complement of binary input.

Output = (Input)’

Where, output and input is in binary values ’1’ or ’0’

Description: This gate is fundamental of any operation where output is high only when two binary inputs are different.

Output = (Input1)*(Input2)’ + (Input1)’ * (Input2)

Where, outputs and inputs are all in binary values ’1’ or ’0’

Description: This gate is fundamental of any operation where output is dependent on product of all binary inputs.

Output = Input1 * Input2 …….. * Input N

Where, outputs and inputs are all in binary values ’1’ or ’0’

Digital Logic Gates symbols and truth table

Fundamental Logic Gates in digital electronics:

X (Input 1)

Y (Input 2)

Z (Output)

0

0

0

0

1

0

1

0

0

1

1

1

X (Input 1)

Y (Input 2)

Z (Output)

0

0

0

0

1

1

1

0

1

1

1

1

X (Input 1)

Z (Output)

0

1

1

0

X (Input 1)

Y (Input 2)

Z (Output)

0

0

0

0

1

1

1

0

1

1

1

0