Communication in which participants leave messages for each other to be read, heard, or watched, and responded to at the recipient's convenience.
A peer-to-peer file sharing protocol that allows users to share files by downloading pieces of a file from multiple sources.
Web sites created to express one or more individuals' views on a given topic.
cable modem connection
High-speed Internet service, with data transfer rates as high as 8 Mbps, provided by cable television service providers.
cascading style sheets (CSS)
A Web development technology that uses special HTML tags to globally define font characteristics for a variety of page elements as well as how those elements are laid out on the Web page.
Synchronous text messaging between two or more participants.
A relationship between two computer programs in which one program, the client, makes a service request from another program, the server, which provides the service.
Sometimes called streaming media, streaming video, or streaming audio, a technique in which the media begins playing while the file is being delivered.
Small text files stored on a computer by a Web server in order to recognize a user who revisits the Web site.
A low-speed Internet service that utilizes the customer's phone line for data transfer rates as high as 56 kilobits per second (Kbps).
DSL (digital subscriber line) connection
Uses the customer's phone line, but there is no dialing up and users can use the Internet and talk on the phone simultaneously.
The transmission of messages over a computer network to support asynchronous text-based communication.
Typically a binary file, such as an image file, Word document, music file, or spreadsheet, that travels along with an e-mail message but is not part of the e-mail ASCII text message itself.
Extensible Markup Language (XML)
A markup language that provides a method for describing and classifying the content of data in a Web page.
An element in an electronic document—a word, phrase, or image—that when clicked, opens a related document.
Hypertext Markup Language (HTML)
The primary markup language that is used to specify the formatting of a Web page; HTML v5 is the latest version.
Hypertext Transfer Protocol (HTTP)
The protocol of the Web that controls communication between Web clients and servers.
instant messaging (IM)
Synchronous one-to-one text-based communication over the Internet.
The main Internet pathways and connections made up of the many national and international communication networks that are owned by major telecom companies.
Internet service provider (ISP)
Company that provides users with access to the Internet through network service providers' (NSPs') points of presence (POPs).
A unique 32-bit identifier for Internet hosts (all devices connected to the Internet).
A network architecture that does not utilize a central server, but facilitates communications directly between clients.
Works with a Web browser to offer extended services such as audio players, video, animation, 3D graphics viewers, and interactive media.
A logical address used by clients and servers that is associated with a specific service.
Special-purpose computing device—typically a small to large unit with network ports—that manages network traffic by evaluating messages and routing them over the fastest path to their destination.
A valuable tool that enables you to find information on the Web by specifying words that are key to a topic of interest (keywords).
Web sites that provide a way for Web users to store, classify, share, and search Web bookmarks; also referred to as favorites.
Sites that provide Web-based tools for users to share information about themselves with others on the Web and find, meet, and converse with other members.
Communication in which people exchange thoughts in real time in a flowing conversation.
The protocols for the Internet; Transmission Control Protocol (TCP) and Internet Protocol (IP).
Method of sending short text messages, no longer than 160 characters, between cell phones.
Uniform Resource Locator (URL)
A Web page address, incorporating the domain name of the Web server and the location of the Web page file on the server.
Technology that combines video and phone call capabilities along with shared data and document access.
Web resources that allow average users to collaborate and contribute to Web content.
Software like a word processor that allows you to create HTML documents.
Software such as Internet Explorer used to request Web pages from Web servers.
Software that stores and delivers Web pages and other Web resources such as interactive Web content.
Web site designed to allow users to add, remove, and edit content.
Markup language that uses most of the same tags as HTML but is more strict in what is allowed and not allowed, so it is more compliant with XML.