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Logic Gates & Circuits
AND Gate Input AInput BOutput X 000 010 100 111 AND Logic Gate AND Truth Table X = A. B AND Boolean Expression
OR Gate Input AInput BOutput X 000 011 101 111 OR Logic Gate OR Truth Table X = A + B OR Boolean Expression
NOT Gate Input AOutput X 01 10 NOT Logic Gate NOT Truth Table X = Ā NOT Boolean Expression
Simple 2-gate Circuits (example 1) ABCD 0001 0101 1001 1110
Simple 2-gate Circuits (example 2)
Simple 3-gate Circuits (example 1)
Simple 3-gate Circuits (example 2)
Lab02 :Logic Gate Fundamentals: Slide #2 Slide #3 Slide #4 The NOT gate: The OR gate: The AND gate:
Truth Tables and Logic Gates. What are Logic Gates? Logic gates are components used in making logic circuits. Each gate has one or more inputs and produces.
Logic Gates Digital Logic Design. What is a logic gate? A switch with an output that will only turn on when inputs are in particular positions.
GCSE Computing#BristolMet Session Objectives#5 MUST explain why data is represented in computer systems in binary SHOULD understand and produce simple.
©2010 Akula LLC, Jeremy R. Hertzberg, BS CMPE Computer Technology Transistor to computer gates
Logic Gates. AND gate Produces an output only if both inputs are on Input AInput BOutput (Q) Q=
TODAY YOU ARE LEARNING to explain why data is represented in computer systems in binary form 2. to understand and produce simple logic diagrams.
Topics Logic gates Gates types Universal gates Realization of logic using gates.
Date of Birth Design Problem Digital Electronics.
Digital Logic & Design Lecture No. 3. Number System Conversion Conversion between binary and octal can be carried out by inspection. Each octal digit.
Lesson Objectives Understand and produce simple logic diagrams using the operation NOT, AND and OR Produce a truth table from a given logic diagram.
1 A Simple ALU Binary Logic. 2 Outline l Binary Logic l Representation of Logic Gates l Constructing a 1-bit adder l Constructing an n-bit adder.
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Circuits & Boolean Expressions. A ABC BC ABC C B A Example # 1: Boolean Expression: Develop a Boolean expression from a circuit.
Logic Circuits Situations to explain states What is a logic Gate What is a Truth Table The three different gates Building Truth Tables.
Logic Gates Learning Objectives Learn that there is a one-to-one relationship between logic gates and Boolean expressions Learn how logic gates are combined.
Department of Computer and Information Science, School of Science, IUPUI CSCI 240 Digital Logic.
Digital logic gates 1. The basic building blocks of a computer are called logical gates or just gates. Gates are basic circuits that have at least one.
Dept. of Electrical and Computer Eng., NCTU 1 Lab 2. NAND and XOR Presenter: Chun-Hsien Ko Contributors: Chung-Ting Jiang and Lin-Kai Chiu.
Boolean Algebra and Logic Gates Chapter 2. Basic Definitions Boolean Algebra defined with a set of elements, a set of operators and a number of axioms.
Logic Gate Objects This document contains various images created by Andrew C. M. Rodger, 4 October Tools used:LibreOffice Impress 3 Microsoft Powerpoint.
Functional Notation Addendum to Chapter 4. 2 Logic Notation Systems We have seen three different, but equally powerful, notational methods for describing.
What is an And Gate? It is a digital circuit that produce logical operations The logical operations are call Boolean logical Boolean operation consist.
Register Transfer and Microoperations Part2. – Manipulating the bits stored in a register Logic Microoperations 4.5 Logic Microoperations.
ENGIN112 L7: More Logic Functions September 17, 2003 ENGIN 112 Intro to Electrical and Computer Engineering Lecture 7 More Logic Functions: NAND, NOR,
Logic Gates. What are logic gates? Logic gates are the switches that turn ON or OFF depending on what the user is doing! They are the building blocks.
Lecture 6 More Logic Functions: NAND, NOR, XOR and XNOR.
CS 121 Digital Logic Design Gate-Level Minimization Chapter 3.
Logic Gates. AND Function Output Y is TRUE if inputs A AND B are TRUE, else it is FALSE. Logic Symbol Text Description Truth Table Boolean Expression.
ELECTRONICS TECHNOLOGY Digital Devices I Karnaugh Maps Benchmark Companies Inc PO Box Aurora CO
Chapter 2: The Logic of Compound Statements 2.4 Application: Digital Logic Circuits 1 Only connect! – E. M. Forster, 1879 – 1970 Howards End, 1910.
Computer Logic & Logic Gates Justin Champion. IITCT Contents Introduction to Logic Look at the different Logic Gates Summary.
© Boardworks Ltd 2003 KS4 Electricity – Electronic systems.
Boolean Algebra Application to electric switches (open - 0, closed - 1): a b c 220V~ L L = (a + b)c = ac + bc b c 220V~ L L = ac + bc c a Variables: only.
Digital Fundamentals CHAPTER 5 Combinational Logic Analysis.
Introduction to CAFE Yu Hen Hu September 25, 2000.
Lab 8 : Multiplexer and Demultiplexer Systems: MUX : Slide #2 Slide #3 Slide #4 Slide #5 Slide #6 Security System Basics : DeMUX : Security System Part.
Rise and rise again until lambs become lions 授課老師：伍紹勳 課程助教：邱麟凱、江長庭 有情助教：蔡東倫.
Combinational Logic Analysis. Basic Combinational Logic Circuits AND-OR logic AND-OR logic AND-OR logic produces an SOP expression. AND-OR logic produces.
Truth Tables & Logic Expressions Digital Electronics.
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Module 3 Combinational and Sequential Logic Circuit By: Cesar Mendoza.
COE 202: Digital Logic Design Sequential Circuits Part 2 KFUPM Courtesy of Dr. Ahmad Almulhem.
Logic Functions Logical functions can be expressed in several ways: ▫ Truth table ▫ Logical expressions ▫ Graphical form prepared by:eng.Rula Amjed.
1 A min (product) term is a unique combination of variables –It has a value of 1 for only one input combination –It is 0 for all the other combinations.
Ian Gover Education Technology Adviser Somerset County Council Logic and Logic Gates.
XOR and XNOR Logic Gates. XOR Function Output Y is TRUE if input A OR input B are TRUE Exclusively, else it is FALSE. Logic Symbol Description Truth.
Chapter 4:. 1 / 65 Combinational Circuits Output is function of input only i.e. no feedback When input changes, output may change (after a delay) n.
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