Logic gates are in fact the building block of digital electronics; they are formed by the combination of transistors (either BJT or MOSFET) to realize some digital operations (like logical OR, AND, INVERT ). Every digital product, like computers, mobile, calculators even digital watches, contain logic gates. The use of logic gates in digital world can be understood better by the following example: the single bit full adder in digital electronics is a logic circuit which perform the logical addition of two single bit binary numbers (a,b,cin) a and b are the the two binary number of single digit (either 1 or 0) and cin is the carry input . say for example a,b,cin= 1,1,1 gave an logical sum output of 1 and a carry of 1 , a,b,cin= 110 gave sum= 0 and carry of 1. Now this adder can be formed by the combination of many gate like by using NAND gates only. or by using XOR , AND ,OR gates and so on. So, in a nutshell, the adder which is of great importance in your computer processor and also in many more applications is basically built from the logic gates.
A NOT logic gate flips the logic signal from 1 to 0 or 0 to 1 :)
An AND gate is a logic gate performing a Boolean logic AND operation.
universal logic gate is a gate using which you can make all the logic gates there are two such gates NOR gate and NAND gate
One use of Boolean algebra is to minimize any function or logic gate.
When the two input terminals of a NAND gate are short circuited, it acts as a NOT gate.
An XNOR gate is a logic gate performing a Boolean logic XNOR operation, also known as an equivalence gate.
The switching time (on and off) of the TTL logic gate is very fast in comparison with CMOS logic gate. However, they could not tolerate higher range of power supply.
AND gate is an all or nothing gate because in able to have an output of logic 1,all of the input must be all logic 1 or else the output will be nothing or simply logic 0.
All the inputs of the gate must be set to a logic 1 for the gate to open.
A NOT gate is used to invert the input signal, meaning it produces the opposite output to the input. It is commonly used in digital circuits for tasks such as signal inversion, logic gating, and arithmetic operations.
Any logic gate from which all other logic gate functions can be derived. The two universal gates are NAND and NOR.
Exclusive OR