A Drill for Converting Binary Numbers to Decimal Numbers

By John Rosz

Students test their skill at converting binary numbers to decimal numbers. Immediate feedback is provided.

Synchronous & Asynchronous Inputs on a JK Flip-Flop

By Patrick Hoppe

Students examine the operation of synchronous and asynchronous inputs on a JK Flip-Flop.

Karnaugh Maps

Learners examine the Karnaugh map for a three-variable system. Several examples are given.

Logic Symbols

By Terry Bartelt

The schematic symbols of logic gates used in digital circuits are shown.

AND Gates

In this learning activity you'll describe the operation of an AND gate by using a truth table, a waveform diagram, a Boolean Algebra equation, a switch analogy, and a written definition.

The 4-Input Truth Table

In this learning activity you'll practice using the 4-input truth table.

Demultiplexers

In this animated object, learners examine the operation of a demultiplexer along with the data output and select lines. A brief quiz completes the activity.

Logic State Indicators

Instructions on how to interpret state indicator symbols for input and output terminals of digital devices is presented.

Boolean Theorems (Single Variable)

Students analyze the eight single variable Boolean theorems and their expressions.

Hexadecimal Number Conversion Practice Problems

In this learning activity you'll practice converting between hexadecimal and decimal and between hexadecimal and binary numbers.

A Sample Exam for Digital Electronics

Students answer 10 questions in a sample exam. This exercise covers number systems, number conversion, logic gates, and combinational design. Feedback is provided.

Pulse Train Fundamentals: Practice Problem #1

In this interactive object, learners determine the pulse width, period, duty cycle, and frequency of a waveform.

The MOD Number

Learners read how to calculate the MOD number and how it is used.

Clock Pulse Triggering of Flip-Flops

This learning object shows the symbols used to represent the type of pulse required at the clock input to activate flip-flops.

Boolean Theorems (Multivariable)

Students read the multivariable theorems and view the graphic depictions of the Boolean expressions.

Multivibrators

In this animated object, learners examine three different types of multivibrators: astable, monostable, and bistable. A brief quiz completes the activity.

Pulse Train Fundamentals: Practice Problem #4

Presetting and Clearing a Flip-Flop

In this animated activity, learners view how to clear and preset a flip-flop to store a logic 0 or a logic 1.

Serial-In Serial-Out Shift Register

In this animated activity, students view the operation of a 4-bit serial-in serial-out register. A brief quiz completes the learning object.

NOR Gates

In this learning activity you'll review the operation of a NOR gate by using a truth table, a Boolean Algebra equation, a switch analogy, and a written statement.

The Multiplexer/Demultiplexer IC Data Transfer Circuit

In this animated activity, the learner examines how a 74150 IC multiplexer and a 74154 IC demultiplexer work together when their data select lines are connected to the same input devices.

Digital-to-Analog Converters

In this animated activity, learners examine how an electronic converter changes digital signals to analog signals. Sections of a synthesizer are identified, and the operation of a D/A converter is demonstrated.

Development of a Boolean Expression for a Combinational Logic Circuit

Learners view an animated demonstration of how to determine the final output of the combinational circuit.

Troubleshooting a Digital-to-Analog Converter

Learners read an explanation of how to troubleshoot a faulty digital-to-analog converter that has a shorted input.

Cascading Magnitude Comparators

Learners read an explanation of how to connect two 7485 ICs to compare binary numbers by creating an 8-bit comparator. Diagrams and charts are presented.