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Front-end and back-end are terms used to characterize program interfaces and services relative to the initial user of these interfaces and services. A "front-end" application is one that application users interact with directly. A "back-end" application or program serves indirectly in support of the front-end services, usually by being closer to the required resource or having the capability to communicate with the required resource.


Backup is the activity of copying files or databases so that they will be preserved in case of equipment failure or other catastrophe.


The amount of data that a communications channel can transmit per second (like a phone line or a cable modem).

Banner Ad

A (most often graphic) advertisement placed on a web page, which acts as a hyperlink to an advertiser's web site.


The number of symbols per second sent over a channel.


Bulletin Board System
Also referred to as message boards, discussion forums and online forums; an electronic message center.

Binary Data

Data in machine readable form.


A binary digit that indicates 0 for "off" and 1 for "on."


A number of bits per second used to store encoded information. Bitrates are measured in kilobits per second (kbps). A bitrate of 128kbps is generally considered to provide almost CD-quality sound.


Bit-Rot is the degeneration of the data stored on a CD. Bit-rot can make a CD unreadable and unplayable.


A combination of the two Internet concepts of a blog and wiki. It combines features from both: as with blogs, posts or articles appear in reverse chronological order on the front page, with the most recent one at the top; but editing is done in wiki style, with a version history for each page and special markup tags.


A blog, which is short for web log, is series of articles usually written in a slightly informal tone. While many blogs are online personal journals, blogs cover the full range from personal to news to business with subject matter that ranges from personal to serious to humorous to creative. A blog network is a series of blogs hosted by the same website or company, while the blogosphere refers to all blogs across the Internet regardless of whether they are an individual blog or part of a blog network.

Blog Aggregator

A web site that keeps track of blog posts.  There is usually a search box and RSS updates.  Submitting a blog to an aggregator can increase exposure and get your content in front of a wider audience.


The author of a blog.


The act of writing a blog.

Blog Network

A collection of blogs with multiple editors. Popular blog networks include Corante, 9rules, Gawker and Weblogs, Inc.


A common term used to describe the large and diverse community of people who contribute to blogs. Some bloggers are very influential and reach a large audience, allowing news to travel quickly among this community.  This is the factor causing many companies to monitor and reach out to the blogosphere to protect and promote their brand identity.


A list of recommended sites that appears in the sidebar of a blog. These sites are typically sites that are either on similar topics, sites that the blogger reads regularly, or sites that belong to the blogger's friends or colleagues. The term "blogroll" also evokes the concept of political logrolling (when legislators promise to vote for one another's pet bills) -- which is not unlike bloggers' habit of reciprocating links by posting links to blogs that link back to their own blogs.

Blog Search Engine

A search engine devoted to the blogosphere. Some of the top blog search engines include Technorati, Feedster, IceRocket and Google Blog Search.


Bluetooth is a telecommunications industry specification that describes how mobile phones, computers, and personal digital assistants (PDAs) can be easily interconnected using a short-range wireless connection.


A format for storing images.


Also known as discussion sites or message boards; micro-communities where people can interact with one another online. Users join these communities to do research and ask/provide advice.


A bookmark is an easy way to find your way back to a website - just like a bookmark helps you keep your place in a book you are reading.


Bits Per Second
Term to describe the transmission speed for data over the web.

Broadband Internet

High-speed Internet, often offered by cable companies and satellite companies.


Term to describe a user's movement across the web, moving from page to page via hyperlinks, using a web browser.


A browser is an application program that provides a way to look at and interact with all the information on the World Wide Web. The word "browser" seems to have originated prior to the Web as a generic term for user interfaces that let you browse (navigate through and read) text files online.


In computer technology, a bug is a coding error in a computer program.


Binary Term
A computer storage unit containing 8 bits. Each byte can store one text character.

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