Usually contrasted with analog. A hardware technology designed to replace audio and information CDs, laserdiscs, and even videotapes. A computerized electro-mechanical device which displays braille using pins or other means that permit the braille to be changed as each line is read. An electronic code sent to the system raises and lowers the pins to form braille characters which the user can sense by placing the fingers on top of the display. When the display is full, the first cell recomposes itself and the display fills up again.
Electronic mail is one of the most popular features of the Internet.
Textual information stored in a digital form that can be presented on a computer screen. Normally this can also be presented in braille or as enlarged characters on a computer screen. Usually involves the use of a mouse. The first page you see when you activate a Web browser. A collection of graphical and textual data organized in such a way as to facilitate easy access to all of the information it contains.