Logic Gate:-

                                           Logic Gate:-

Claude E Shannon discovered that Boolean algebra can be used to design  & switching circuits. As computer circuits also use a combination of switches can be one of two states open or closed. It is also called logic gate.

  All operation within a computer are carried out by means of combination of signal passing through standard block of built in circuits that are known as  logic gate.

In other words, a logic gate is simply an electronic circuit which operates on one or more input signals.

These logic gates are the building blocks of all the circuits is a computer.  These are several typing of gate but we consider have  only some of the most important ones.

Truth table:- The table in which all the possible combination of input or output shown is called truth table.

Type of logic gate:-

AND gate():-

An AND gate is the physical realization of the logical multiple operation. It is an electronic circuit that generates an output signal of 1 only if all input signal are also 1.

Or gate (+):-

It is an electronic circuit that generates an output signal of 1 if any input signal is 1.

 

 

Not gate:-

It is an electronic circuit that generates an output signal which is the reverse of input signal. A NOT gate is also called an inverter it inverters the input.

NAND Gate:-

NAND Gate is a complement AND gate.  That is the output of NAND gate will be a 1 if any one of the input is a o and will be a o only when all the inputs are one.

NOR GATE:-

A Nor Gate is a complement OR gate. That is the output of a NOR gate will be a 1 only when all inputs are 0 and will be a 0 if any input represent.

EXCLUSIVE OR GATE.

EXCLUSIVE NOR GATE.