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- Data_transmission abstract "Data transmission, digital transmission, or digital communications is the physical transfer of data (a digital bit stream) over a point-to-point or point-to-multipoint communication channel. Examples of such channels are copper wires, optical fibres, wireless communication channels, storage media and computer buses. The data are represented as an electromagnetic signal, such as an electrical voltage, radiowave, microwave, or infrared signal.While analog transmission is the transfer of a continuously varying analog signal, digital communications is the transfer of discrete messages. The messages are either represented by a sequence of pulses by means of a line code (baseband transmission), or by a limited set of continuously varying wave forms (passband transmission), using a digital modulation method. The passband modulation and corresponding demodulation (also known as detection) is carried out by modem equipment. According to the most common definition of digital signal, both baseband and passband signals representing bit-streams are considered as digital transmission, while an alternative definition only considers the baseband signal as digital, and passband transmission of digital data as a form of digital-to-analog conversion.Data transmitted may be digital messages originating from a data source, for example a computer or a keyboard. It may also be an analog signal such as a phone call or a video signal, digitized into a bit-stream for example using pulse-code modulation (PCM) or more advanced source coding (analog-to-digital conversion and data compression) schemes. This source coding and decoding is carried out by codec equipment.".
- Data_transmission wikiPageExternalLink halowave.webs.com.
- Data_transmission wikiPageID "42168".
- Data_transmission wikiPageRevisionID "602371818".
- Data_transmission hasPhotoCollection Data_transmission.
- Data_transmission subject Category:Data_transmission.
- Data_transmission subject Category:Local_area_networks.
- Data_transmission subject Category:Media_technology.
- Data_transmission subject Category:Telecommunications.
- Data_transmission type Artifact100021939.
- Data_transmission type ComputerNetwork103085333.
- Data_transmission type Instrumentality103575240.
- Data_transmission type LocalAreaNetwork103681477.
- Data_transmission type LocalAreaNetworks.
- Data_transmission type Network103820728.
- Data_transmission type Object100002684.
- Data_transmission type PhysicalEntity100001930.
- Data_transmission type System104377057.
- Data_transmission type Whole100003553.
- Data_transmission comment "Data transmission, digital transmission, or digital communications is the physical transfer of data (a digital bit stream) over a point-to-point or point-to-multipoint communication channel. Examples of such channels are copper wires, optical fibres, wireless communication channels, storage media and computer buses.".
- Data_transmission label "Data transmission".
- Data_transmission label "Datenübertragung".
- Data_transmission label "Gegevensoverdracht".
- Data_transmission label "Transmisión de datos".
- Data_transmission label "Transmission de données".
- Data_transmission label "Передача данных".
- Data_transmission label "نقل البيانات".
- Data_transmission label "データ転送".
- Data_transmission label "数据传输".
- Data_transmission sameAs Přenos_dat.
- Data_transmission sameAs Datenübertragung.
- Data_transmission sameAs Μετάδοση_δεδομένων.
- Data_transmission sameAs Transmisión_de_datos.
- Data_transmission sameAs Transmission_de_données.
- Data_transmission sameAs Teknologi_komunikasi_digital.
- Data_transmission sameAs データ転送.
- Data_transmission sameAs Gegevensoverdracht.
- Data_transmission sameAs m.0bl7c.
- Data_transmission sameAs Q389772.
- Data_transmission sameAs Q389772.
- Data_transmission sameAs Data_transmission.
- Data_transmission wasDerivedFrom Data_transmission?oldid=602371818.
- Data_transmission isPrimaryTopicOf Data_transmission.