Question

Why only Three Basic Logic Gates are there? can anyone explain the logic behind three basic Gate?

Comments

$AND$ , $OR$ and $NOT$ , by using it  we can create any other gates

Answer 1

{ AND,OR,NOT} gate are basic logic gates. And it is  a functionally complete set With the help of these set we can implement any logic gate .

Comments

yes i got this. but what is the reason only three Gates are kept as basic gates.

How number 3 plays a role here?

 

Like for more clarity, say Two digits are in Binary system (0,1)

so to perform any operation between these symbol there would be two case

case I: both digits is used

( here it comes AND and OR) based on the logic of electric current passed through transistor.

case II: single digit used

(here it comes NOT) as if 0 is given then 1 will come and vice versa.

 

and rest all the logic can be implemented by the use of these three gates.

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so whether like this some logic is used behind making these three gates as Universal gates or some other ???

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Actually computer understand binary number syatem  . And we can perfome any operation on binary number  using these gate.