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DEFINITION

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Part of theElectronicsglossary:

Digital describes electronic technology that generates, stores, and processesdata in terms o t!o states" positi#e and non$positi#e% Positi#e is e&pressedor represented by the n'mber ( and non$positi#e by the n'mber )% Th's,data transmitted or stored !ith digital technology is e&pressed as a string o)*s and (*s% Each o these state digits is reerred to as a bit +and a string obits that a comp'ter can address indi#id'ally as a gro'p is a byte%

Prior to digital technology, electronic transmission !as limitedto analogtechnology, !hich con#eys data as electronic signals o #arying

re-'ency or amplit'de that are added to carrier !a#es o a gi#en re-'ency%.roadcast and phone transmission has con#entionally 'sed analogtechnology%

Digital technology is primarily 'sed !ith ne! physical comm'nicationsmedia, s'ch assatelliteand /ber optictransmission% A modemis 'sed tocon#ert the digital inormation in yo'r comp'ter to analog signals or yo'rphone line and to con#ert analog phone signals to digital inormation or yo'rcomp'ter%

This was last updated in April 0))1

Posted by:2argaret Ro'se

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GOSS!RIES

Electronics

$ Terms related to electronics, incl'ding de/nitions abo't electrical components and !ords and

phrases abo't comp'ters, laptops parts, digital cameras, tele#isions and home appliances%

Internet applications

$ This 4hatIs%com glossary contains terms related to Internet applications, incl'ding de/nitions abo't

Sot!are as a Ser#ice +SaaS deli#ery models and !ords and phrases abo't !eb sites, e$commerce %%%

Dig Deeper

"EO"E #$O RE!D T$IS !SO RE!D%%%

Analog 2icro!a#e Radio and Digital 2icro!a#e Radio

4hy is it considered to be problematic to send digital data o#er the

PSTN and ho! are these problems

Types o noise and ho! they a7ect the net!or6

8'i9 :;" 4ireless

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