DATA TRANSFER RATE
\dˈe͡ɪtə tɹˈansfɜː ɹˈe͡ɪt], \dˈeɪtə tɹˈansfɜː ɹˈeɪt], \d_ˈeɪ_t_ə t_ɹ_ˈa_n_s_f_ɜː ɹ_ˈeɪ_t]\
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(Or "throughput, data rate", "transmissionrate") The amount of data transferred in one direction overa link divided by the time taken to transfer it, usuallyexpressed in bits per second (bps), bytes per second (Bps) orbaud. The link may be anything from an interface to a harddisk to a radio transmission from a satellite.Where data transfer is not continuous throughout the giventime interval, the data transfer rate is thus an average ratethat will be lower than the peak rate. The peak or maximumpossible rate may itself be lower than the capacity of thecommunication channel if the channel is shared, or part of thesignal is not considered as data, e.g. checksum or routinginformation.When applied to data rate, the multiplier prefixes "kilo-","mega-", "giga-", etc. (and their abbreviations, "k", "M","G", etc.) always denote powers of 1000. For example, 64 kbpsis 64,000 bits per second. This contrasts with units ofstorage where they stand for powers of 1024, e.g. 1 KB =1024 bytes.The other important characteristic of a channel is itslatency.The bandwidth of a channel determines the data transfer ratebut is a different characteristic, measured in Hertz.[Relationship?]
By Denis Howe
Word of the day
Quinones
- Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.