In this learning activity you'll examine a systematic method for converting a decimal number (base 10) into a binary number (base 2).

In this learning activity you'll examine how a data file is broken into packets and transmitted over the Internet.

In this learning activity, you'll examine the different ways in which computers and other equipment are physically connected in local area networks and the advantages and disadvantages of each topology.

In this animated activity, learners examine nanotechnology applications that are based on cell membrane structure and function.

In this learning activity you'll observe how computers operate in a client-server network operating system and consider the advantages and disadvantages of such a system.

In this learning activity you'll explore how to reduce electromagnetic interference (EMI) and crosstalk between adjacent wires.

In this learning activity you'll explore bandwidth.

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

In this learning activity you'll explore the physical construction and operation of single-mode and multi-mode fiber-optic cables used in networking.

In this learning activity you'll examine how computers operate in a peer-to-peer network operating system.

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

In this learning activity you'll observe how switches are used in local area networks to increase data transmission speeds.

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.

In this learning activity you'll examine the RG ratings, networking applications, and types of connections for various coaxial cables.

In this learning activity you'll examine how routers transfer data between local area networks and the Internet.

Learners view animations showing how hubs and switches work in local area network configurations.

In this animated object, learners read about the uses of nanotechnology. The sciences, engineering, electronics, and other disciplines converge in nanotechnology. Examples are given for applications in manufacturing, biomedicine, and environmental science. Concerns about possible environmental effects are discussed.

In this animated object, learners consider how nanoscientists are mimicking intracellular movements when building nanobots.

In this learning activity you'll review how a local area network computer uses a subnet mask to determine if its message is intended for a computer on the same network or on a remote network.

In this learning activity you'll create a packet filter.

In this learning activity you'll examine a stateful packet inspection firewall that keeps track of legitimate Internet service requests, also known as dynamic packet filtering.

In this learning activity you'll examine how network address translation works.

In this learning activity you'll examine how logical addresses work. The IP address is the logical address assigned to a connection by the ISP or network administrator.

In this learning activity you'll explore how computers connected on a network use Ethernet technology.

In this interactive lesson, learners read and hear instructions for sending an e-mail. Steps are given for composing an e-mail message and for sending it. Students have an opportunity to write their own messages. A quiz follows the instruction.