# Logic Gates Essay

**1. Explain what is a combinational circuit?**

In a combinational circuit, the output depends upon present input(s) only i.e, not dependant on the previous input(s). The combinational circuit has no memory element. It consists of logic gates only.

**2. Write two characteristics of combinational circuits.**

The two characteristics of combinational circuits are:

In combinational circuits, the output exists as long as the input exists.

A combinational circuit will always respond in the same fashion to the input function, when we apply signal to the input terminal of the combinational logic circuit.

**3. Explain what is a half-adder?**

A logic circuit, that can add two 1-bit numbers and produce outputs for sum and carry, is called a half-adder.

**4. Explain what is a full-adder?**

A binary adder, which can add two 1-bit binary numbers along with a carry bit and produces outputs for sum and carry is called a full-adder.

**5. Explain what is a flip-flop?**

A flip-flop is a basic memory element that is made of an assembly of logic gates and is used to store 1-bit of information.

**6. Explain what is a latch?**

It is a D-type of flip-flop and stores one bit of data.

**7. Explain what is an excitation table?**

Excitation table gives an information about Explain what should be the flip-flop inputs if the outputs are specified before and after the clock pulses.

**8. Explain what is a state table?**

State table consists of complete information about present state, next state, and outputs of a sequential circuit.

**9. Explain what is Boolean Algebra?**

Boolean algebra is a mathematic system of logic in which truth functions are expresses as symbols and then these symbols are manipulated to arrive at conclusion.

**10. Explain what are the basic logic elements?**

Basic logic elements are NOT gate, AND gate, OR gate and the flip-flop.

**11. Explain what is a truth table?**

Truth table is a table that gives outputs for all possible combinations of inputs to a logic circuit.

**12. Define positive logic and negative logic.**

If the higher of the two voltages represents a 1 and the lower voltage represents a 0, then the logic is called a positive logic. On the other hand, if the lower voltage represents a 1 and the higher voltage a 0, we have a negative logic.

**13. Explain what is pulse logic system?**

A logic system in which a bit is recognized by the presence or absence of a pulse is called a pulse or dynamic logic system.

**14. Explain what is an inverter?**

An inverter is a logic gate whose output is the inverse or complement of its input.

**15. Explain what are the universal logic gates?**

Universal gate is a gate that can perform all the basic logical operations such as NAND and NOR gates.

**16. Explain what is the specialty of NAND and NOR gates?**

The specialty of NAND and NOR gates is that they are universal gates and can perform all the basic logical operations.

**17. Explain why NAND-NAND realization is preferred over AND-OR realization?**

NAND-NAND realization needs only one type of gate(NAND), that minimizes IC package counter.

**18. Explain why is a two-input NAND gate called universal gate?**

NAND gate is called universal gate because any digital system can be implemented with the NAND gate. Sequential and combinational circuits can be constructed with these gates because element circuits like flip-flop can be constructed from two NAND gates connected back-to-back. NAND gates are common in hardware because they are easily available in the ICs form. A NAND gate is in fact a NOT-AND gate. It can be obtained by connecting a NOT gate in the output of an AND gate.

**19. Explain what is associate law?**

Associate law is a low of addition and multiplication and according to this law grouping of the variable is the ORing or ANDing of several variables is immaterial and the results obtained are the same.

## Digital Electronics Logic Gates Writing Service

**Introduction**

Digital Electronics Logic Gates are the standard building blocks of any digital system. It is an electronic circuit having several than one input and just one output. The relationship between the output and the input is based on a specific logic. Based upon this, logic gates are named as AND gate, OR gate, NOT gate and so on

A logic gate is a little transistor circuit, basically a type of amplifier, which is carried out in various forms within an incorporated circuit. Each kind of gate has one or more (frequently two) inputs and one output.

**Digital Electronics Logic Gates Writing Service**

The principle of work is that the circuit runs on just two voltage levels, called logic 0 and logic 1. When either of these voltage levels is applied to the inputs, the output of the gate responds by presuming a 1 or a 0 level, depending upon the logic of eviction. The logic guidelines for each type of gate can be explained in various ways, by a written description of the action, by a reality table, or by a Boolean algebra declaration.

A logic gate implements a Boolean function and hence performs a sensible operation on one or a number of logic inputs in order to produce a single logic output. Contrary to a switch circuit, it is not possible for current to stream between the input and the output of a semiconductor logic gate. The output of one gate can be wired to the inputs of one or more other gates.

There are numerous various kinds of programmable logic gates at Future Electronics. We stock a lot of the most typical types categorized by a number of parameters including family, logic circuit, variety of functions, output attributes, nominal supply voltage and packaging type. Our parametric filters will allow you to improve your search results according to the needed requirements.

Logic gates are the standard components in Digital Electronics Logic Gates. They are utilized to develop digital circuits as well as complicated incorporated circuits. For example, complex integrated circuits might bring currently a total circuit ready to be utilized, microprocessors and microcontrollers are the best example and however inside them they were forecasted utilizing a number of logic gates.

Logic gates are electronic circuits that utilized to carry out the most primary logic expressions, also known as Boolean expressions. There are 3 fundamental logic gates, particularly the OR gate, the AND gate and the NOT gate. Other logic gates that are derived from those fundamental gates are the NAND gate, the NOR gate, the EXCLUSIVEOR gate and the EXCLUSIVE-NOR gate.

A logic gate is a little transistor circuit, essentially a kind of amplifier, which is executed in various types within an incorporated circuit. Each kind of gate has several (frequently 2) inputs and one output.

There are generally 7 kinds of logic gates that are utilized in expressions. By integrating them in various methods, you will have the ability to carry out all kinds of digital elements. Have a look at each standard logic gate and their operation.

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A Logic Gate is designated as a primary foundation of digital circuits. Logic gate is thought about as a gadget which has the capability to produce one output level with the mixes of input levels.

The logic gates can be constructing up in a large range types such as massive incorporated circuits, extremely massive incorporated circuits and likewise in small incorporated circuits. Here the inputs and output of all the gates of incorporated gadgets can be available and likewise the external connections are made readily available to them simply like discreet logic gates.

Microprocessors include more than a million of gates as per the research study carried out by our Digital electronic devices logic gates research assistance. Specific gates are more expensive than others and so the metal oxide transistors are mainly utilized here which are low-cost and really quick when utilized.

Here the inputs and output of all the gates of incorporated gadgets can be easily accessible and likewise the external connections are made offered to them simply like discreet logic gates.

Microprocessors consist of more than a million of gates as per the research study carried out by our Digital electronic devices logic gates research assistance.

Based on this, logic gates are named as AND gate, OR gate, NOT gate and so on

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