Learners view waveforms at various locations of an SCR circuit controlling the intensity a light bulb. The waveforms are shown when the light is dim, at medium brightness, and at full brightness. A brief quiz completes the activity.

Learners will understand how the interaction of the armature magnetic field and the rotating stator field cause the rotor of a single-phase AC motor to turn.

Learners study the method of using more than one track and quadrature modes to improve the resolution of an optical encoder. A brief quiz completes the activity.

Learners read an introduction to the four basic types of force systems for a statically determinate condition.

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

In this learning activity you'll identify the voltage levels produced or recognized by digital logic devices as valid or invalid logic state signals.

Instructions on how to use and construct a truth table for digital devices are provided.

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

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

You'll focus on terminology related to designing a hypothetical program.

Answer given questions on Data and programs.

This game focuses on basic input devices common in computer systems.