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Wireless Developer Network Glossary

0-9  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-AMPS - Digital AMPS. Used by Ericsson Inc. to describe IS-136 time division multiple access technology.

Data Warehouse - A data warehouse is a central repository for all or significant parts of the data that an enterprise's various business systems collect.

DCOM - DCOM (Distributed Component Object Model) is a set of Microsoft concepts and program interfaces in which client program objects can request services from server program objects on other computers in a network.

Decibel - The decibel (abbreviated as dB) is a common unit of measurement for the relative loudness of a sound or, in electronics, for the relative difference between two power levels.

Digital Loop Carrier - Digital loop carrier (DLC) is equipment that bundles a number of individual phone line signals into a single multiplexed digital signal for local traffic between a telephone company central office and a business complex or other outlying service area.

DLL - In computers, a dynamic link library (DLL) is a collection of small programs, any of which can be called when needed by a larger program that is running in the computer.

Driver - A driver is a program that interacts with a particular device or special (frequently optional) kind of software. The driver contains the special knowledge of the device or special software interface that programs using the driver do not.

DSP - A specialized microprocessor that performs mathematical operations on a data stream in real time to produce a second (modified) data stream.

Dual Band - A feature on some wireless phones that allows the handset to operate using either the 800 MHz cellular or the 1900 MHz PCS frequencies.

Dual Mode - A feature on some wireless phones that allows the handset to operate on both analog and digital networks.

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