In this animated object, learners examine the operation of a closed-loop system that maintains the speed of a conveyer belt as heavy boxes are placed or removed.

Students complete 10 practice problems.

Learners solve for voltage, current, and power in a single source, six-resistor circuit. A help screen is provided.

Learners examine the ways in which a motor starter circuit is protected by a main circuit breaker and overload heaters when there is excessive current.

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

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

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

Learners examine the fundamental concepts of sequencer output instruction. A simulated example shows a sequencer in operation.

In this animated activity, learners examine how various NAND gate configurations and the logic signals produced throughout the circuit perform the functions of all of the other types of logic gates.

Review of the various devices

Answer given questions on Data and programs.

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Fill in the complete names of various input/output devices.