Bandwidth meaning

băndwĭdth, -wĭth
The amount of data that can be passed along a communications channel in a given period of time.
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The rate at which information can be transmitted along a communications line, to a device, etc.
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The numerical difference between the upper and lower frequencies of a band of electromagnetic radiation, especially an assigned range of radio frequencies.
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The amount of data that can be passed along a communications channel in a given period of time. For analog devices, such as standard telephones, bandwith is the range of frequencies that can be transmitted and is expressed in hertz (cycles per second). For digital devices, bandwidth is measured in bits per second. The wider the bandwidth, the faster data can be sent.
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(1) Computer people may use the term for capability and time. For example, "not enough bandwidth to get the job done" means not enough staff or time to do it. Its true meaning follows.
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The amount of digital data that can be transmitted over a computer network, or another communications device, during a given time. Digital devices measure bandwidth in bits per second (bps) or kilobits per second (kbps). The term also may be used informally to refer to an ability to complete a project or task.
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The measure of the capacity of a circuit or channel. More specifically, bandwidth refers (1) to the total frequency range on the available carrier in Hertz (Hz) for the transmission of data, or (2) the capacity of a circuit in bits per second (bps). There is a direct relationship between the bandwidth of an analog circuit or channel and both its frequency and the difference between the minimum and maximum frequencies supported. Although the information signal (bandwidth usable for data transmission) does not occupy the total capacity of a circuit, it generally and ideally occupies most of it.The balance of the capacity of the circuit may be used for various signaling and control (overhead) purposes. In other words, the total signaling rate of the circuit typically is greater than the effective transmission rate. In an analog transmission system, bandwidth is measured in Hertz (Hz). In a digital system, bandwidth is measured in bits per second (bps). See also bps, carrier, Hz, overhead, signaling and control, signaling rate, throughput, and transmission rate.
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The width, usually measured in hertz, of a frequency band.
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Of a signal, the width of the smallest frequency band within which the signal can fit.
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(networking) The rate of data flow in digital networks typically measured in bits per second.
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(informal) The capacity, energy or time required.

I think it's a worthy project, but I just don't have the bandwidth right now.

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The numerical difference between the upper and lower frequencies of a band of electromagnetic radiation, especially an assigned range of radio frequencies.
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The range of frequencies within a band, as that required to transmit a particular signal.
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Origin of bandwidth