-  A B C D E F G H I J K L M N O P Q R S T U V W X Y Z  -

 

- D -

• Data Projector - used to project a computer’s image onto a screen. Commonly used in conjunction with a presentation graphics program such as Microsoft’s PowerPoint. (see also: DLP, InFocus projector, PowerPoint, Presentation Graphics Program).

• Digital - patterns of on's/high-voltage (1's) and off's/low voltage (0's) that can be processed by a computer.

• Digitalization/Digitized - process of converting video or audio signals normally in waveform (analog), into 1's and 0's.

• DLP - Digital Light Projectors. (see also: Data Projector, InFocus Projector, PowerPoint, Presentation Graphics Program.)

• Document Camera - a camera used to take digital images of documents/transparencies to be projected on a screen using a data projector. This technology serves the purpose of, and will eventually replace, standard overhead projectors.

• DVD (digital video disc or digital versatile disc) - a new standard for recording video on CD-ROM's using MPEG2, thus boasting better-than-broadcast TV quality. Costing about the same as a CD, DVD-ROM's hold 8 to 40 times more data. Sony/Phillips and Toshiba/Time, the two major developers, predict DVD will replace videocassettes, laserdiscs, CD-ROM's and audio CD's. Recently (June '97) Hitachi announced a re-writable DVD, which may spell the end to re-writable CD's.

 

- E -

• Elmo - popular brand of document camera. (see also: document camera)

• Ethernet - network access system using the Carrier-Sense Multiple Access with Collision Detection (CSMA/CD) access method in which nodes may transmit a signal at any given time, and if two devices transmit at the same time both devices will wait a random period of time before attempting to resend.

 

A, B, C

-  A B C D E F G H I J K L M N O P Q R S T U V W X Y Z  -

F, G, H

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This page last updated:  22 March 2000