Logic gates

NAND gate

In digital electronics, a NAND gate (NOT-AND) is a logic gate which produces an output which is false only if all its inputs are true; thus its output is complement to that of an AND gate. A LOW (0) output results only if all the inputs to the gate are HIGH (1); if any input is LOW (0), a HIGH (1) output results. A NAND gate is made using transistors and junction diodes. By De Morgan's laws, a two-input NAND gate's logic may be expressed as A • B=A+B, making a NAND gate equivalent to inverters followed by an OR gate. The NAND gate is significant because any boolean function can be implemented by using a combination of NAND gates. This property is called functional completeness. It shares this property with the NOR gate. Digital systems employing certain logic circuits take advantage of NAND's functional completeness. The function NAND(a1, a2, ..., an) is logically equivalent to NOT(a1 AND a2 AND ... AND an). One way of expressing A NAND B is , where the symbol signifies AND and the bar signifies the negation of the expression under it: in essence, simply . NAND gates with two or more inputs are available as integrated circuits in transistor-transistor logic, CMOS, and other logic families. (Wikipedia).

NAND gate
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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

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In a Minute: Hollow State Logic in 60 Seconds (NAND / AND)

Let’s build some logic gates without using any silicon at all! In this episode of “In a Minute” we build a NAND gate and an AND gate using just a 6AL5 dual diode and two 6AU6 pentodes. Thanks for watching! Discord: https://discord.gg/p7UsfHD Reddit: https://www.reddit.com/r/usagielectri

From playlist In a Minute

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SR Latch Circuit Using NAND Gates

This video discusses the operation of the SR Latch circuit using NAND gates.

From playlist Electronic Circuits

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Let’s Build Some Logic Gates out of Vacuum Tubes: OR, NOR, NAND, AND

In this episode, we break out the breadboard again and build some fundamental logic gates. Most notably, we build a NAND and AND gate, which requires some pretty inventive thinking and interesting use of diodes. With these four gates, we can now build some pretty awesome stuff! Thanks for

From playlist Vacuum Tube Logic

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3 Input Logic Gates With Truth Tables - AND, NAND, OR, & NOR

This video on logic gates focuses on the 3 input AND, OR, NOR, and NAND gates. It also discusses the truth tables as well.

From playlist Electronic Circuits

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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

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Latches and Flip-Flops 2 - The Gated SR Latch

This is the second in a series of computer science 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 gated set-reset latch. It begins by reviewing

From playlist Latches and Flip-Flops

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Logical Gates ( Creating and Evaluating Boolean Expressions ) - Part 2

Thanks to all of you who support me on Patreon. You da real mvps! $1 per month helps!! :) https://www.patreon.com/patrickjmt !! Logical Gates ( Creating and Evaluating Boolean Expressions ) - Part 2. In this video, I look at how to create a Boolean expression associated with a circuit

From playlist All Videos - Part 2

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Latches and Flip-Flops 1 - The SR Latch

This is the first in a series of computer science 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 set-reset latch, otherwise known as the SR latch

From playlist Latches and Flip-Flops

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ELEC2141 Digital Circuit Design - Lecture 9

ELEC2141 Week 3 Lecture 3: Combinational Logic Circuits 2

From playlist ELEC2141 Digital Circuit Design

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JK Flip Flop - Basic Introduction

This electronics video tutorial provides a basic introduction into the operation of the JK Flip Flop circuit which uses 2 two-input NAND Gates and 2 three-input NAND Gates. The JK Flip Flop circuit is an extension of the SR latch circuit with two additional NAND gates and a clock input.

From playlist Electronic Circuits

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Arduino 7 Binary Calculator Circuits

Circuit Diagrams : http://bit.ly/arduinotut7 Best Arduino Book : https://amzn.to/2xGWt0h https://www.patreon.com/derekbanas This tutorial takes the next step towards understanding how a bunch of resistors and transistors turn into a real computer. Previously we created gates and now we w

From playlist Arduino Tutorial

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8-bit CPU reset circuit and power supply tips

More 8-bit computer: https://eater.net/8bit Check out Julian's channel: https://www.youtube.com/user/julius256 Support me on Patreon: https://www.patreon.com/beneater https://www.eater.net https://twitter.com/ben_eater https://www.patreon.com/beneater

From playlist Building an 8-bit breadboard computer!

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4.2.8 Worked Examples: Gates and Boolean Logic

MIT 6.004 Computation Structures, Spring 2017 Instructor: Silvina Hanono View the complete course: https://ocw.mit.edu/6-004S17 YouTube Playlist: https://www.youtube.com/playlist?list=PLUl4u3cNGP62WVs95MNq3dQBqY2vGOtQ2 4.2.8 Worked Examples: Gates and Boolean Logic License: Creative Comm

From playlist MIT 6.004 Computation Structures, Spring 2017

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4.2.3 Inverting Logic

MIT 6.004 Computation Structures, Spring 2017 Instructor: Chris Terman View the complete course: https://ocw.mit.edu/6-004S17 YouTube Playlist: https://www.youtube.com/playlist?list=PLUl4u3cNGP62WVs95MNq3dQBqY2vGOtQ2 4.2.3 Inverting Logic License: Creative Commons BY-NC-SA More informati

From playlist MIT 6.004 Computation Structures, Spring 2017

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4.2.2 Useful Logic Gates

MIT 6.004 Computation Structures, Spring 2017 Instructor: Chris Terman View the complete course: https://ocw.mit.edu/6-004S17 YouTube Playlist: https://www.youtube.com/playlist?list=PLUl4u3cNGP62WVs95MNq3dQBqY2vGOtQ2 4.2.2 Useful Logic Gates License: Creative Commons BY-NC-SA More inform

From playlist MIT 6.004 Computation Structures, Spring 2017

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Lec 12 | MIT 6.002 Circuits and Electronics, Spring 2007

Capacitors and first-order systems View the complete course: http://ocw.mit.edu/6-002S07 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu

From playlist MIT 6.002 Circuits and Electronics, Spring 2007

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GoGaRuCo 2014- Let's Build a Computer!

By, Ryan Davis The increasing accessibility of computing and scripting languages means more and more of us don't have computer science fundamentals and hand-wave our laptops and servers as magic. But, it doesn't take much to learn that the wizard box you type on every day is just layers of

From playlist GoGaRuCo2014-

Related pages

NOR logic | AND gate | Functional completeness | CMOS | XNOR gate | Complement (set theory) | Inverter (logic gate) | NOR gate | XOR gate | Logic gate | De Morgan's laws | Logical equivalence | Boolean algebra | Boolean function | Transistor–transistor logic | Logic family | OR gate | Sheffer stroke