A logic gate is an idealized or physical device implementing a Boolean function, a logical operation performed on one or more binary inputs that produces a single binary output. Depending on the context, the term may refer to an ideal logic gate, one that has for instance zero rise time and unlimited fan-out, or it may refer to a non-ideal physical device (see Ideal and real op-amps for comparison). Logic gates are primarily implemented using diodes or transistors acting as electronic switches, but can also be constructed using vacuum tubes, electromagnetic relays (relay logic), fluidic logic, pneumatic logic, optics, molecules, or even mechanical elements. Now, most logic gates are made from MOSFETs (metal–oxide–semiconductor field-effect transistors). With amplification, logic gates can be cascaded in the same way that Boolean functions can be composed, allowing the construction of a physical model of all of Boolean logic, and therefore, all of the algorithms and mathematics that can be described with Boolean logic. Logic circuits include such devices as multiplexers, registers, arithmetic logic units (ALUs), and computer memory, all the way up through complete microprocessors, which may contain more than 100 million logic gates. Compound logic gates AND-OR-Invert (AOI) and OR-AND-Invert (OAI) are often employed in circuit design because their construction using MOSFETs is simpler and more efficient than the sum of the individual gates. In reversible logic, Toffoli or Fredkin gates are used. (Wikipedia).
This is a beginner's introduction to logic gates. It starts with an historical mention of the development of two state devices including valves and transistors, and how these led to the silicon chip. It then goes on to describe the nature and behaviour of the three main logic gates NOT, A
From playlist Logic Gates
This computer science video follows on from the video that introduces logic gates. It covers creating truth tables for combinations of simple logic gates, including a mention of some well used combinations. Combinations of logic gates manipulate pulses of electricity, and because these pu
From playlist Logic Gates
Learn more: Bistable elements linked by springs transmit signals through a 3-D–printed logic gate. Credit: Dennis Kochmann/Caltech
From playlist Our Research
Understanding Logic Gates | Computer Logic, Part 1
In this series, we take a look at the fundamentals of how computers work. We start with a look at logic gates, the basic building blocks of digital circuits. These gates include NOT, AND, OR, NAND, NOR, XOR, and XNOR. 0:00 Transistors 1:21 NOT 2:13 AND and OR 3:28 NAND and NOR 5:17 XOR a
From playlist Computer Logic
This computer science video follows on from the video about combining logic gates. It covers how a logic gate diagram can be described with a Boolean expression. This includes how to come up with a valid expression for a given combination of logic gates and, conversely, how to draw a log
From playlist Logic Gates
Logic Gate - Applied Cryptography
This video is part of an online course, Applied Cryptography. Check out the course here: https://www.udacity.com/course/cs387.
From playlist Applied Cryptography
Latches and Flip-Flops 5 – D Type Flip Flop
This is the fifth in a series of videos about latches and flip-flops. These bi-stable combinations of logic gates form the basis of computer memory, counters, shift registers, and more. In particular, this video covers the D type flip flop, that is, a master slave configured combination
From playlist Latches and Flip-Flops
How do we use transistors to create switches that can transmit arbitrary signals, whether analog or digital? The answer is the transmission gate. Also known as "pass transistor logic", the transmission gate allow for signals to be passed through or blocked depending on the control signal t
From playlist Digital Electronics
Diode Logic Gates - OR, NOR, AND, & NAND
This electronics video tutorial provides a basic introduction into logic gates using diodes, resistors, and LEDs. Examples include OR, NOR, AND, & NAND Diode Logic Gates. Resistors: https://amzn.to/2U2dPEp 1N4007 Diodes: https://amzn.to/2U9dtvz LED Assortment Kit: https://amzn.to/3ic8
From playlist Electronic Circuits
Logic Gates from Transistors: Transistors and Boolean Logic
How to make all the logic gates from a field effect transistor, or from other logic gates.
From playlist Physics
EEVblog #981 (EEVacademy #1) - Introduction To Digital Logic
NEW screencast type tutorial! Let me know what you think. NOTE: The plan is at least several of these tutorial videos per week consistently. So on my main channel that frequency could swamp the other content, hence considering a new channel. An introduction to digital logic, digital vs an
From playlist EEVacademy
Vacuum Tube Computer P.13 – Building a NAND Gate to Control the Input Enable Register
In this episode we start work on building the unit that’s going to connect the instruction register with the ALU. But, in order to do so, we need to build one more type of logic gate – the NAND gate. So come along as we take a look at the gates we’ve used so far and how we’re going to go a
From playlist Vacuum Tube Computer
An Introduction to Logic Gates
A simple introduction to logic gates, covering transistors, Boolean Algebra, AND OR NOT NOR NAND XOR and XNOR gates and how to build a very basic computer.
From playlist A Level Physics Revision
Exploration of the Logic of a Perceptron, the impact of its parameters, and how to interpret Neural Network in term of logic as well. #SoME2 #mathematics #maths #math #neuralnetworks #perceptron #neuron #deeplearning #machinelearning #logic #truthtable #digitalcircuits Music : https://s
From playlist Summer of Math Exposition 2 videos
Language, Logic and Minecraft | How redstone can express logic
Today I explain how we can express logic in minecraft. I hope to cover comparators and multibit logic soon maybe. 0:00 Intro 0:44 Inspiration 1:31 Sentences and Truth 2:55 Combining Statements 3:49 Formal Logic 7:22 Quick Disclaimer 7:25 Representing Logic in Minecraft 11:05 Functional C
From playlist Summer of Math Exposition Youtube Videos
Making Optical Logic Gates using Interference
In this video I look into the idea of using optical interference to construct different kinds of logic gates, both from a conceptual- as well as from the practical perspective. Contents 0:00 Intro 2:15 Logic gate operation 3:36 Optical logic gates 4:45 Concept of a diffractive logic gate
From playlist Photolithography