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.

Karnaugh Maps

By Patrick Hoppe

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

Clock Pulse Triggering of Flip-Flops

By Terry Bartelt

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

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.

Logic Symbols

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

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.

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.

Building a Binary Counter with a JK Flip-Flop

In this animated activity, learners examine the construction of a binary counter using a JK flip-flop. The ability of the JK flip-flop to "toggle" Q is also viewed.

Synchronous & Asynchronous Inputs on a JK Flip-Flop

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

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.

Multivibrators

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

Comparing Analog and Digital Signals

Learners compare animations of analog and digital data signals. A short quiz completes the activity.

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.

Analog and Digital Converters

In this learning activity you'll examine how electronic converters convert between analog voltages and proportional digital signals.

The 7493 IC Binary Counter

In this interactive and animated object, learners examine the construction of a 7493 IC as mod-2 and mod-8 up-counters. They view how this binary counter can be modified to operate at different modulus counts. A quiz completes the activity.

Boolean Theorems (Single Variable)

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

Boolean Theorems (Multivariable)

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

Logic Probe Troubleshooting

In this animated object, learners follow a process for troubleshooting digital integrated circuits on a printed circuit board using a logic probe.

Hexadecimal Number Conversion Practice Problems

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

The Flip-Flop

In this animated activity, learners view the flip-flop and read about its outputs, the information it stores, and its storage conditions. A quiz completes the lesson.

The MOD Number

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

Fan-Out: Determining the Load Drive Capability of an IC

Students follow steps to determine the number of inputs that can be driven by a specific IC. A sample problem is given.

The Operation of a Multiplexer/Demultiplexer Circuit

In this animated object, learners examine how a multiplexer and a demultiplexer work together when their data select lines are connected to the same binary counter.

The Logic Gates

Students read information about basic logic gates including the gates' names, symbols, Boolean expressions, pronunciations, and truth tables. They then complete a matching exercise.

The JK Flip-Flop

In this animated activity, learners view the input and output leads of a JK flip-flop. They also see how it functions in each mode of operation. A brief quiz completes the learning object.