Short-Question

# What is NAND gate with example?

## What is NAND gate with example?

A two-input NAND gate is a digital combination logic circuit that performs the logical inverse of an AND gate. While an AND gate outputs a logical “1” only if both inputs are logical “1,” a NAND gate outputs a logical “0” for this same combination of inputs.

### What is the example of NOR gate?

A NOR gate is a logic gate which gives a positive output only when both inputs are negative. Like NAND gates, NOR gates are so-called “universal gates” that can be combined to form any other kind of logic gate….XNOR.

Desired Gate NOR Construction
Q = A XNOR B = [ B NOR ( A NOR A ) ] NOR [ A NOR ( B NOR B ) ]

#### What are logic gates explain NAND and NOR gate?

The outputs of all NAND gates are high if any of the inputs are low. The symbol is an AND gate with a small circle on the output. The small circle represents inversion. NOR gate. This is a NOT-OR gate which is equal to an OR gate followed by a NOT gate.

Why NAND and NOR gates are termed as universal gates explain with examples?

Answer: The NAND gate and the NOR gate can be said to be universal gates since combinations of them can be used to accomplish any of the basic operationsand can thus produce an inverter, an OR gate or an AND gate. The non-inverting gates do not have this versatility since they can’t produce an invert.

What does a NOR gate do?

The NOR gate is a digital logic gate that implements logical NOR – it behaves according to the truth table to the right. A HIGH output (1) results if both the inputs to the gate are LOW (0); if one or both input is HIGH (1), a LOW output (0) results. NOR is the result of the negation of the OR operator.

## WHY AND OR and NOT gates are called basic gates?

The AND, OR and NOT gate are considered as the basic gate since we form the basic circuit with the help of these gates only. Then furthermore, the more gates are formed with the help of these basics only such as XOR, NOR, NAND and even XNOR. Hence, they are considered as basic blocks.

### Which of following are known as universal gates a NAND & NOR B and & OR C XOR & OR d ex NOR & XOR?

The logic gates which are derived from the basic gates like AND, OR, NOT gates are known as derived gates. XOR and XNOR are the derived gates. A universal gate is a gate that can implement any Boolean function without the need to use any other gate type. NAND and NOR gates are universal gates.

#### How do you make NOR gates with NAND?

To make a NOR gate perform the NAND function, we must invert all inputs to the NOR gate as well as the NOR gate’s output. For a two-input gate, this requires three more NOR gates connected as inverters.

Which is true about the NOR AND NAND gates?

The NOR gate and NAND gate are universal gates. This means that you can create any logical Boolean expression using only NOR gates or only NAND gates. In practice, this is advantageous since NOR and NAND gates are economical and easier to fabricate than other logic gates.

Can a NOT gate be added to a NAND gate?

In the actual circuitry it can simply be fabricated by adding a NOT gate in front of an AND gate (NOT gates are explained in the next section) and the symbol and truth table for a NAND gate is shown below. A NOT gate is a special type of gate in that it has only one input and only one output.

## How is the symbol of a NAND gate represented?

The symbol of the NAND gate is represented as a combination of AND gate and NOT gate. The Boolean expression is given as $Y=\\bar {A.B}$. A simple NAND gate can be constructed using transistors and resistors as shown in the figure below. The inputs of the NAND gate are directly connected to the transistor bases.

### Can a logic circuit be emulated using only NAND gates?

It turns out that any logic gate can be emulated using only NAND gates or only NOR gates. This property is known as functional completeness. This means that an entire logic circuit can be built using only a single type of gate throughout the design.