What Is A Nand Gate?

Computers have become an indispensable aspect of modern life since they can accomplish a wide range of jobs and operations in a short amount of time. One of the most significant responsibilities of a computer’s CPU is to conduct logical processes using hardware such as integrated circuits, software, and electronic circuits. To gain a better understanding of such a complicated subject, we must first learn about the term Boolean Logic, which was coined by George Boole. Computers use binary digits rather than digital digits for simple operations. The Basic Logic gates perform all of the operations.

Basic Logic Gates:

A logic gate is a basic digital circuit building element with two inputs and one output. The link between the i/p and the o/p follows a set of rules. Electronic switches like transistors and diodes are used to implement these gates. Basic logic gates, on the other hand, are constructed utilising CMOS technology, FETS, and MOSFETs (Metal Oxide Semiconductor FETs). Microprocessors, microcontrollers, embedded system applications, and electronic and electrical project circuits all use logic gates. AND, OR, XOR, NAND, NOR, XNOR, and NOT are the seven most basic logic gates.

NAND Gate:

A NAND gate (NOT-AND) is a logic gate in digital electronics that produces a false output only if all of its inputs are true; hence, its output complements that of an AND gate. Only if all of the gate’s inputs are high will the output be low; if any of the inputs are low, the output will be high. Transistors and junction diodes are used to create a NAND gate. A two-input NAND gate’s logic can be represented as AB=A+B using De Morgan’s principles, making a NAND gate similar to inverters followed by an OR gate.

Since any boolean function may be implemented using a combination of NAND gates,the NAND is very significant. This property is referred to as functional completeness. This is a property that it shares with the NOR gate. The functional completeness of NAND is used in digital systems that use particular logic circuits.

The Seven Fundamental Logic Gates:

AND gate, OR gate, XOR gate, NAND gate, NOR gate, XNOR gate, and NOT gate are the seven types of basic logic gates. The logic gate function is depicted using the truth table. Except for the NOT gate, which has only one input, all logic gates have two inputs. The binary integers 0 and 1 are used to create a truth table. The amount of inputs determines every conceivable combination.

Uses Of Basic Logic Gates:

To execute fundamental logical functions, basic logic gates are used. These are the fundamental components of digital integrated circuits. The majority of logic gates have two binary inputs and produce a single output, such as 1 or 0. Few logic gates are employed in some electronic circuits, whereas microprocessors contain millions of logic gates in others. Diodes, transistors, relays, and optics are examples of mechanical devices that can be used to build logic gates. Therefore, basic logic gates are used in the same way as electronic circuits are.

Types Of Logic Gates:

AND Gate:

The AND gate is a digital logic gate with ‘n’ inputs and one output that conducts logical conjunction based on the inputs’ combinations. This gate’s output is true only when all of its inputs are true. When one or more of the AND gate’s i/ps inputs are false, the AND gate’s output is also false.

OR Gate:

The OR gate is a digital logic gate that performs logical conjunction based on the combinations of its inputs. It has ‘n’ inputs and one output. The OR gate’s output is true only if one or more of its inputs are true. If all of the gate’s i/ps are false, the OR gate’s output is also false.

NOT Gate:

The NOT gate is a one-input, one-output digital logic gate that performs an inverter operation on the input. The NOT gate’s output is the inverse of its input. The output of the NOT gate will be false if the input is true, and vice versa. This gate can be used to build NOR and NAND gates.

NOR Gate:

The NOR gate is a digital logic gate with n inputs and one output that executes the OR gate followed by the NOT gate function. The OR and NOT gates are combined to create the NOR gate. The output of the NOR gate will be false if any of the i/ps of the NOR gate is true.