# Nor And Nand Gate Boolean Table Pdf

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Published: 23.01.2021

*A high output 1 results if both of the inputs to the gate are the same. If one but not both inputs are high 1 , a low output 0 results. There are two symbols for XNOR gates : one with distinctive shape and one with rectangular shape and label.*

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- Logic Gates
- NAND and NOR Functions

Digital Electronic Circuits and Systems pp Cite as. Unable to display preview. Download preview PDF.

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The Web This site. Each logic family is designed so that gates and other logic ICs within that family and other related families can be easily combined, and built into larger logic circuits to carry out complex functions with the minimum of additional components. If something is not 1 it must be 0, if it is not on, it must be off. A logic gate is a small transistor circuit, basically a type of amplifier, which is implemented in different forms within an integrated circuit. Each type of gate has one or more most often two inputs and one output.

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But, how this hardware and software perform such operations is a mysterious puzzle. In order to have a better understanding of such a complex issue, we must have to acquaint ourselves with the term Boolean Logic, developed by George Boole. For a simple operation, computers utilize binary digits rather than digital digits. All the operations are carried out by the Basic Logic gates. This article discusses an overview of what are basic logic gates in digital electronics and their working. A logic gate is a basic building block of a digital circuit that has two inputs and one output.

Truth Tables. Logic Gates. Multiple Input Gates. Gates and Functions Quiz. Boolean functions may be practically implemented by using electronic gates.

## Logic Gates

Logic gates process signals which represent true or false. Other terms used for the true and false states are shown in the table, it is best to be familiar with them all. Capital letters are normally used to make it clear that the term refers to a logic gate. The traditional symbols have distinctive shapes making them easy to recognise, they are widely used in industry and education. The IEC International Electrotechnical Commission symbols are rectangles with a symbol inside to show the gate function.

That is, given enough gates, either type of gate is able to mimic the operation of any other gate type. As proof of this property, this section will be divided into subsections showing how all the basic gate types may be formed using only NANDs or only NORs. Either method works, although connecting TTL inputs together increases the amount of current loading to the driving gate.

### NAND and NOR Functions

Logic gates are the basic building blocks of any digital system. It is an electronic circuit having one or more than one input and only one output. The relationship between the input and the output is based on a certain logic. A circuit which performs an AND operation is shown in figure.

But, how this hardware and software perform such operations is a mysterious puzzle. In order to have a better understanding of such a complex issue, we must have to acquaint ourselves with the term Boolean Logic, developed by George Boole. For a simple operation, computers utilize binary digits rather than digital digits. All the operations are carried out by the Basic Logic gates. This article discusses an overview of what are basic logic gates in digital electronics and their working.

A NOR gate is a logic gate which gives a positive output only when both inputs are negative. For example, the first embedded system , the Apollo Guidance Computer , was built exclusively from NOR gates, about 5, in total for the later versions. Today, integrated circuits are not constructed exclusively from a single type of gate. Instead, EDA tools are used to convert the description of a logical circuit to a netlist of complex gates standard cells or transistors full custom approach.

We all love computers. They can do so many amazing things. Within a couple of decades computers have completely revolutionized almost all the aspects of human life. They can do tasks of varying degrees of sophistication, all by just flipping zeros and ones.

If you're seeing this message, it means we're having trouble loading external resources on our website. To log in and use all the features of Khan Academy, please enable JavaScript in your browser. Donate Login Sign up Search for courses, skills, and videos. Computing Computers and the Internet Computers Logic gates and circuits.

*The AND gate is a basic digital logic gate that implements logical conjunction - it behaves according to the truth table to the right. The function can be extended to any number of inputs. Additional inputs can be added as needed.*

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