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Bandwidth (computing)
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<p>In <a href="/facts/Computing/Kghtm9fX">computing</a>, bandwidth is the maximum rate of data transfer across a given path. Bandwidth may be characterized as network bandwidth, data bandwidth, or digital bandwidth. </p><p>This definition of <i>bandwidth</i> is in contrast to the field of signal processing, wireless communications, modem data transmission, <a href="/facts/Digital_communications/1yAhaANd">digital communications</a>, and <a href="/facts/Electronics/E4JhgISq">electronics</a>, in which <i>bandwidth</i> is used to refer to the <a href="/facts/Signal_bandwidth/7eMDzfJI">signal bandwidth</a> measured in <a href="/facts/Hertz/6Wshj5qm">hertz</a>, meaning the frequency range between lowest and highest attainable frequency while meeting a well-defined impairment level in signal power. The actual bit rate that can be achieved depends not only on the signal bandwidth but also on the <a href="/facts/Noise/aUstHDqU">noise</a> on the channel. </p>