From WikiEducator
Jump to: navigation, search

Digital Electronics for Beginners

This course is intended to teach basic concepts in Digital Electronics to the students who are interested in following Computer Science and Electronics.

Aim and Objectives


This course was developed to provide basic understanding in using OER resources to learn Digital Electronics.


  • Give basic understanding of Digital Electronics
  • Guiding to tutorials
  • Practice concepts using Simulators and online laboratories
  • Assessments and tutorials
  • Playing with digital electronics games
  • Learning about courses in OER

Our profile

Hi All,

We would be composing a OER on Digital Electronics for under graduate students.

I am Dr.Susira Perera from the department of Physics Open university of Sri Lanka. and I am Chathurika Weliwita From the department of Mathematics and Computer Science Open university of Sri Lanka.

Digital Electronics for beginners


What is Digital Electronics?

Digital electronics, or digital (electronic) circuits, represent signals by discrete bands of analog levels, rather than by a continuous range. All levels within a band represent the same signal state. Relatively small changes to the analog signal levels due to manufacturing tolerance, signal attenuation or parasitic noise do not leave the discrete envelope, and as a result are ignored by signal state sensing circuitry.
In most cases the number of these states is two, and they are represented by two voltage bands: one near a reference value (typically termed as "ground" or zero volts) and a value near the supply voltage, corresponding to the "false" ("0") and "true" ("1") values of the Boolean domain respectively.
Digital techniques are useful because it is easier to get an electronic device to switch into one of a number of known states than to accurately reproduce a continuous range of values.
Digital electronic circuits are usually made from large assemblies of logic gates, simple electronic representations of Boolean logic functions.

Study Materials

Study Materials in many forms suc as pdf, tutorials, videos etc.


  • Electronics [1]
  • Electronic Circuit Analysis [2]
  • Lecture 1 - Introduction to Basic Electronics [3] 
  • Lecture 2 - Electronic Devices [4]
  • Boolean Logic[5]
  • Boolean Algebra: AND/OR/NOT [6]
  • Bits, Binary, Boolean Logic and Computers [7]


An algorithm to implement a boolean function using only NAND's or only NOR's [8]

Logic Gates and Concepts

  • Inverters and Logic[9]
  • Not Logic Gate [10]
  • OR Logic Gate [11]
  • AND logic Gate [12]


Designworks - Simulator for Circuit Design

DesignWorks is a logic schematic creation and simulation program. It comes with many circuit symbols and models that allow you to create logical circuits. This tutorial will be using DesignWorks Professional by Capilano Computing.


  • Tutorial [13]
  • DesignWorks Download [14]
  • Other Tutorials on DesignWorks [15]

Digital Systems Laboratory


  • Introduction to Digital Systems Laboratory[16]
  • Hands-On Introduction to Electrical Engineering Lab Skills [17]

Assess yourself

You can find many tutorials in the web, here we have listed few for you to start with;

  • Digital Logic Tutorials[18]
  • Digital Electronics Tutorials database[19]

Play a Digital Game

Bianary Game [20]

Other Courses on Digital Electronics

Introduction to Electronics [21]

MIT courses in Electronics

  • Introductory MIT Courses, Computers and Electronics[22]
  • Digital Electronic Education [23]