what are logic gates ? explain different types of logic gates.
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Answer:
A logic gate is an idealized model of computation or physical electronic device implementing a Boolean function, a logical operation performed on one or more binary inputs that produces a single binary output. Depending on the context, the term may refer to an ideal logic gate, one that has for instance zero rise time and unlimited fan-out, or it may refer to a non-ideal physical device.(see Ideal and real op-amps for comparison)
The basic logic gates are classified into seven types: AND gate, OR gate, XOR gate, NAND gate, NOR gate, XNOR gate, and NOT gate. The truth table is used to show the logic gate function. All the logic gates have two inputs except the NOT gate, which has only one input.
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Answer:
OR Gate. A circuit which performs an OR operation is shown in figure. ...
NOT Gate. NOT gate is also known as Inverter. ...
NAND Gate. A NOT-AND operation is known as NAND operation. ...
NOR Gate. A NOT-OR operation is known as NOR operation. ...
XOR Gate. XOR or Ex-OR gate is a special type of gate. ...
XNOR Gate.