Technology [D-H]
E-learning (electronic learning)
Term covering a wide set of applications and processes, such as web-based learning, computer-based learning, virtual classrooms, and digital collaboration. It includes the delivery of content via Internet, intranet/extranet (LAN/WAN), audio- and videotape, satellite broadcast, interactive TV, CD-ROM, and more.
Electronic mail (e-mail)
Messages transmitted over communications networks.
E-mail list
A form of one-to-many communication using e-mail; a software program for automating mailing lists and discussion groups on a computer network.
Encoding
The process of compressing a media file for a specific purpose, such as streaming on the web. One can encode a file that is in analog form (such as a VHS tape) or one that is already digital (such as the signal on a Mini-DV tape).
Encryption
Encoding information using some specific algorithm in order to hide it. The original information can not be retrieved without using a matching decryption algorithm.
End user
The person for whom a particular technology is designed; the individual who uses the technology for its designated purpose. In e-learning, the end user is usually the student.
Ethernet
A type of local area network, originally developed at Xerox, in which computers communicate through radio frequency signals sent over coaxial cable.
Evaluation
Any systematic method for gathering informationn about the impact and effectiveness of a learning offereing. Results of the measurements can be used to improve the offering, determine whether the learning objectives have been achieved, and assess the value of the offering to the organization.
F2F (face-to-face)
Term used to describe the traditional classroom environment.
FAQ (Frequently Asked Questions)
An informational list, in question and answer format, of common inquiries from users about a topic or application and standard responses.
File Transfer Protocol (FTP)
The protocol used on the Internet for exchanging files. FTP is most commonly used to download a file from a server using the Internet or to upload a file to a server (e.g., uploading a web page file to a server).
File server
A computer on a network with the primary task of storing files that can be shared by network users.
Firewall
A system designed to prevent unauthorized access to or from a private network. Firewalls can be implemented in both hardware and software, or a combination of both. Firewalls are frequently used to prevent unauthorized internet users from accessing private networks connected to the Internet, especially intranets. All messages entering or leaving the intranet pass through the firewall, which examines each message and blocks those that do not meet the specified security criteria.
FireWire
Apple Computer's trademarked name for its high-speed serial bus supporting the IEEE 1394 data transfer standard. FireWire enables the connection of up to 63 devices and transfers data at a speed of up to 400 mbps.
GB (gigabyte )
Just over one billion bytes. 1,000 megabytes.
GIF (Graphics Interchange Format)
Pronounced jiff or giff (hard g), a file format commonly used for images on the Web. GIFs are especially suitable for images composed of relatively few colors, such as logos or vector graphics.
GUI (Graphical User Interface)
A computer interface using icons or pictures. For example, Windows.
HDTV (high-definition TV)
A television signal that has over five times the resolution of standard television and requires extraordinary bandwidth.
Home page
The main page of a web site. Typically, the home page serves as an index or table of contents to other documents stored at the site.
Host
(noun) (1) A computer system that is accessed by a user working at a remote location. Typically, the term is used when there are two computer systems connected by modems and telephone lines. The system that contains the data is called the host, while the computer at which the user sits is called the remote terminal.
(2) A computer that is connected to a TCP/IP network, including the Internet. Each host has a unique IP address.
(verb) To provide the infrastructure for a computer service. For example, there are many companies that host Web servers. This means that they provide the hardware, software, and communications lines required by the server, but the content on the server may be controlled by someone else.
HTML (HyperText Markup Language)
The programming language used to create documents for display on the World Wide Web.
HTTP (HyperText Transfer Protocol)
The set of rules and standards that govern how information is transmitted on the World Wide Web.
HTTP streaming
A form of streaming (popularized by QuickTime) in which media files begin to play before they are downloaded entirely. This means that they can be sent via HTTP and don't require specialized server software such as RealMedia files do. Also called Progressive Download.
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