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XOR And XNOR GATE
Basic Gates NOT AND OR - Digital Electronics
2453    Arnab De    01/03/2019

The digital world based on the three basic gates.

• NOT Gate
• AND Gate
• OR Gate

### NOT Gate

NOT Gate is also known as inverter. This gate receives only one input and gives us just inverted signal of the input.   That is if the input is 1 then output is 0 and vise-versa.  It is symbolized as

But in the combinational circuit we can use it as a bubble. If A is the input then output symbolized as A‘ or A in digital equations.

 NOT Gate INPUT OUTPUT 1 0 0 1

### AND Gate

This gate receives two or more than two inputs but gives us only one output. This circuit gives a high (1) or true output if all the applied inputs are high. An AND gate symbolized as dot (.) in digital equations. If A and B are the input then output are A.B but sometimes the dot is omitted i.e. AB.

 AND Gate INPUT OUTPUT A B C 0 0 0 0 1 0 1 0 0 1 1 1

### OR Gate

This gate receives two or more than two inputs but gives us only one output. This circuit gives a high (1) or true output if any of the applied inputs are high. An OR gate symbolized as plus (+) in a digital equations. If A and B are the input then output are A+B.

 AND Gate INPUT OUTPUT A B C 0 0 0 0 1 0 1 0 0 1 1 1
XOR And XNOR GATE
Author Details
Arnab De
I have over 16 years of experience working as an IT professional, ranging from teaching at my own institute to being a computer faculty at different leading institute across Kolkata. I also work as a web developer and designer, having worked for renowned companies and brand. Through tutorialathome, I wish to share my years of knowledge with the readers.
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