Boolean Functions

1. What are Logic gates?

In digital circuits, a Logic gate is a basic switching circuit which evaluates whether an input pulses can pass through from the output.

2. What do Logic gates do?

Logic gates are used to carry out Boolean operations on binary input to get a desired output.

3. Name different types of Logic gates?

There are seven basic Logic gates in Digital Logic : AND, OR, XOR, NOT, AND, NAND, NOR and XNOR.

4. What is the relation between AND and NAND gate and OR and NOR gate?

NAND and NOR Logic gates are negation of AND and OR Logic gates.

5. Why NAND and NOR gates are called as Universal gates?

NAND and NOR gates are known as UNIVERSAL GATES because they have the property that they can be used to implement any logic circuit independently.

6. What’s the use of Logic gates in everyday life?

In real life Logic gates are used in push button lock, burglar alarm, safety thermostat etc.

Boolean Algebra was given by George Boole. It is a set of rules used to simplify a given logical expression without changing its functionality. It is mainly used when several variables present are less. The algebraic expression used in Boolean Algebra is known as Boolean Expression and it is used to describe Boolean Function. The Boolean expression generally consists of value 0 or 1, binary variables, and logical operation.