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What is XOR gate used for?
It is used in simple digital addition circuits which calculate the sum and carry of two (half-adder) or three (full-adder) bit numbers. XOR gates are also used to determine the parity of a binary number, i.e., if the total number of 1’s in the number is odd or even.
What are the uses of logic gates?
Logic gates are used to carry out the logical operations on single or multiple binary inputs and result in one binary output. In simple words, logic gates are the electronic circuits in a digital system.
What is the expression of ex NOR gate?
We said previously that the Ex-NOR function is a combination of different basic logic gates Ex-OR and a NOT gate, and by using the 2-input truth table above, we can expand the Ex-NOR function to: Q = A ⊕ B = (A.B) + (A.B) which means we can realise this new expression using the following individual gates.
What are the applications of NAND and NOR gates?
A universal gate is a gate which can implement any Boolean function without need to use any other gate type. The NAND and NOR gates are universal gates. In practice, this is advantageous since NAND and NOR gates are economical and easier to fabricate and are the basic gates used in all IC digital logic families.
When does an XOR gate produce a high value?
From this, it is clear that XOR gate produces a logic LOW i.e., Logic ‘0’ at its output, when both the inputs are same (both may be LOW or both may be HIGH). low logic that is logic ‘0’ , at its output , when When the two inputs are different it produces a logic high value i.e., logic ‘1’ at its output.
Which is the Boolean expression of output of XOR gate?
As it is a Hybrid gate, the Boolean expression of output of XOR gate is given by combining Multiplication, Addition and revering of inputs. If A, B are the inputs of XOR gate, its output is given as A.B ̅ + (A) ̅.B. It can also be said as (A + B). (A ̅ + B ̅).
Why are logic gates called AND, OR, NOR AND XNOR?
Please try again later. There are seven basic logic gates: AND, OR, XOR, NOT, NAND, NOR, and XNOR. The AND gate is so named because, if 0 is called “false” and 1 is called “true,” the gate acts in the same way as the logical “and” operator.
When do you apply two signals to an Exor gate?
When you have multiple inputs, then you are supposed to apply two of those to an EXOR gate, get the output, apply that output and the third signal to another EXOR gate and so on. What is an EXNOR gate (XNOR)? An EXNOR logic gate is the opposite of the XOR gate.