Logic Gates:
- A Logic gate is an electronic circuit that operates on one or more input signals to produce standard output signals. These logic gates are the building blocks of electronic circuits in a computer.
- Combinations of multiple logic gates of different types are often used to build electronic circuits in computers.
- A logic gate is comprised of resistors and transistors, or diodes.
Type OF Logic Gates:
- NOT Gate
- OR Gate
- AND Gate
- NOR Gate
- NAND Gate
- XOR Gate
- XNOR Gate
- XNOR Gate
| Logic Gates |
NOT Gate:
- A NOT Gate is a logic gate that has only one input, it outputs the opposite logic state of its input.
- The NOT Gate is also called inverter.
- Boolean Expression: Q = Ā
| NOT Gate |
- Truth Table OF NOT Gate:
| NOT Gate |
OR Gate:
- OR Gate is an electronic circuit that generates an output signal of 1, if any of the input signal is also 1.
- Boolean Expression: z = A + B
| OR Gate |
- Truth Table OF OR Gate:
| OR Gate |
AND Gate:
- An AND Gate is a logic gate that has two or more than two inputs, its output is 1 only when all its inputs are 1.
- Boolean Expression: Q = A . B
| AND Gate |
| AND Gate |
NOR Gate:
- A NOR Gate is a complemented OR Gate i.e. The output of NOR Gate is 0 if any of the input signalis 1.
- Boolean Expression: OUT = (A + B)'
| NOR Gate |
| NOR Gate |
NAND Gate:
- A NAND Gate is a complemented AND Gate i.e. the output of NAND Gate is 0 only when all its input are 1.
- Boolean Expression: OUT = (A . B)'
| NAND Gate |
- Truth Table OF NAND Gate:
| NAND Gate |
XOR Gate:
- XOR Gate is an electronic circuit that generates an output signal of 0, if both of the input signals are same.
- Boolean Expression: OUT = A ⊕ B
- Truth Table OF XOR Gate:
XNOR Gate:
| XOR Gate |
| XOR Gate |
- XNOR Gate is a complemented XOR Gate i.e. the output of XNOR Gate is 1 only when all its input are same.
- Boolean Expression: OUT = (A ⊕ B)'
- Truth Table OF XNOR gate:
| XNOR Gate |
Tags: Logical Gates, NOT Gate, AND Gate, OR Gate, NAND Gate, NOR Gate, XOR Gate, XNOR Gate, Computer Circuits, Invertor
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