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Backbone: A primary communication path connecting multiple users.

Band: A range of frequencies between defined upper and lower limits.

Bandwidth: The nformation carrying capacity of a communication channel.

Baud: A measure of data transmission speed. At low speeds, baud is equal to the bits transmitted per second (bps). At higher speeds, one baud can represent more than one bit.

BBS (bulletin board system): An online community run on a host computer that users can dial or log into in order to post messages on public discussion boards, send and receive email, chat with other users, and upload and download files. BBSs are text-based and often related to the specific hobbies or interests of their creators.

Binary code: A coding system made up of numbers expressed in base-2 notation, using only the digits 0 and 1.

Bit: The most basic unit of information on a computer. In accordance with binary code, each bit is designated as either a 1 or a 0; all other information stored on the computer is composed of combinations of bits.

Blended learning: Learning events that combine aspects of online and face-to-face instruction.

Blog (Weblog): An extension of the personal Website consisting of regular journal-like entries posted on a Webpage for public viewing. Blogs usually contain links to other Websites along with the thoughts, comments, and personality of the blog's creator.

Bluetooth: A wireless networking technology using radio waves that enables users to send data and voice signals between electronic devices over short distances.

Bookmark: A Webpage link stored in a browser for quick and easy retrieval.

Bps (bits per second): A measurement of data transmission speed in a communications system; the number of bits transmitted or received each second.

Bridge: A device linking two or more sections of a network.

Broadband: 1) In layperson's terms, high speed transmission of data. In this use, the specific speed that defines broadband is subjective; the word often implies any speed above what is commonly used at the time. 2) In technical terms, transmission over a network in which more than one signal is carried at a time. Broadband technology can transmit data, audio, and video all at once over long distances. See also narrowband.

Broadcast: (noun) Television or radio signals designed to reach a mass audience. (Some Websites offer original or redistributed broadcasts--see Webcast.)
(verb) 1) To transmit television or radio signals. 2) To email or fax a message to multiple recipients simultaneously; to transmit information simultaneously to everyone on a network.

Browser: A software application that displays World Wide Web pages originally written in the text-based HTML language in a user-friendly graphical format.

Business requirements: The conditions an e-learning solution should meet to align with the needs of such stakeholders as the content developer, subject matter expert, learner, manager, and training administrator.

Byte: A combination of 8 bits.