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.

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 be introduced to what the CRC is, the technology behind it, and how it’s performed.

In this learning activity you'll examine the format of an IP address and interpret the octet by converting between decimal and binary numbers.

In this learning activity, you’ll practice connecting to the Team Foundation Service (TFS) and your local code repository to get existing code.

In this learning activity you'll examine the software operation Dynamic Host Configuration Protocol (DHCP), which automatically performs TCP/IP configurations.

Learners read about how universities, government agencies, energy companies, and nanotech firms are working together to use nanotechnology to help produce clean water for consumption.

Explore what DDoS attacks are, the methods used to carry them out, and how to prevent them.

Learners use this Structured Query Language tutorial to gain an understanding of how a SELECT statement is built. This learning object has audio content.

In this animated object, learners examine how a gateway server operates.

In a series of interactive exercises, learners identify the parts of a URL, a Web site, and an e-mail memo. Students are given their score at the end of the activity.

In this interactive exercise, learners label the components of a workstation, a Windows desktop, and an application window.

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 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 learning activity you'll create a packet filter.

In this learning activity you'll explore bandwidth.