Hexadecimal Number Conversion Practice Problems

By Patrick Hoppe

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

Logic Symbols

By Terry Bartelt

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

Karnaugh Maps

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

Boolean Theorems (Single Variable)

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

Digital Circuit Devices

The two types of digital devices, logic gates and flip-flops, and the types of basic operations they perform are presented.

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.

Synchronous & Asynchronous Inputs on a JK Flip-Flop

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

Hexadecimal Numbering System

In this learning activity you'll review the hexadecimal numbering system.

The 4-Input Truth Table

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

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.

The MOD 10 Counter

The technique for designing a MOD 10 counter is introduced. Asynchronous inputs of a JK flip-flop are used to clear the counter.

Multiplexers

In this animated object, learners examine the operation of a multiplexer and the function of the data input and selector lines. A brief quiz completes the activity.

Analog and Digital Converters

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

The MOD Number

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

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.

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.

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.

The Universal NOR Gate

Learners read how the NOR gate can be configured to obtain the other common logic gates. Schematics and Boolean expressions demonstrate how the AND, OR, and Hex Inverter functions are achieved through the use of only NOR gates

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.

Timing Diagrams

The explanation and use of timing diagrams used in digital electronics to graphically show the operation of various circuits are given.

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.

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.

NAND Gates

In this learning activity you'll explore the operation of a NAND gate using a truth table, a Boolean Algebra equation, a switch analogy, and a written statement.

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.

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.