digital signal

Cultural Dictionary

digital signal definition


A signal in which the original information is converted into a string of bits before being transmitted. A radio signal, for example, will be either on or off. Digital signals can be sent for long distances and suffer less interference than analog signals.

Note: The communications industry worldwide is in the midst of a switch to digital signals.
Note: Sound storage in a compact disk is in digital form.
Note: Sound and video can also be streamed via computer.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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