Definition of Bandwidth

Babylon English
bandwidth
n. range of frequencies within a band; maximum rate at which data can be transferred over a communications network (Computers)

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Bandwidth definition was found in categories: Computer & Internet(20)  Government(1)  Language, Idioms & Slang(3)  Entertainment & Music(2)  Science & Technology(5)  Business & Finance(3)  Encyclopedia(1)  

Bandwidth Definition from Computer & Internet Dictionaries & Glossaries

FOLDOC
bandwidth
<communications> The difference between the highest and lowest frequencies of a transmission channel (the width of its allocated band of frequencies).
The term is often used erroneously to mean data rate or capacity - the amount of data that is, or can be, sent through a given communications circuit per second.
[How is data capacity related to bandwidth?]
[Jargon File]
(2001-04-24)

Integrated Circuit Terminology
Bandwidth
a range of wavelengths or frequencies. For example, the bandwidth of a light source would be the range of wavelengths produced by the light source. Alternately, the bandwidth of an amplifier would be the range of frequencies the amplifier would amplify.

Jargon File
bandwidth
n. 1. [common] Used by hackers (in a generalization of its technical meaning) as the volume of information per unit time that a computer, person, or transmission medium can handle. "Those are amazing graphics, but I missed some of the detail -- not enough bandwidth, I guess." Compare low-bandwidth. This generalized usage began to go mainstream after the Internet population explosion of 1993-1994. 2. Attention span. 3. On Usenet, a measure of network capacity that is often wasted by people complaining about how items posted by others are a waste of bandwidth.

Glossary of the European Information Society
Bandwidth
Definition of the transmission capacity of a cable. Highest for fibre optic, lowest for copper telephone wire.

A Glossary of Internet & PC Terminology
Bandwidth
The Bandwidth is basically the maximum speed at which data can be transmitted between computers in a network.

Smart Card Terms
Bandwidth
The amount of data that can be sent through a connection. Usually measured in bps. A normal page of hypertext ranges from 6,000 to 20,000 bits (not counting graphics).

WebGuest Web Glossary
Bandwidth
The transmission capacity, usually measured in bits per second (see bps ) of a network  connection.
"High bandwidth" people: hacker  slang for individuals which consume large volumes of information in short periods of time.

Jensen's Technology Glossary
Bandwidth
Capacity (range) of transmission frequencies on a network as expressed in cycles per second (hertz) or bits per second that determines the amount of data, audio, and video that can flow over the network. The higher the frequency, the higher the bandwidth. (See also BasebandBroadbandHertzbps, and Information highway)

Internet Glossary
Bandwidth
How much stuff you can send through a connection. Usually measured in bits-per-second. A full page of English text is about 16,000 bits. A fast modem can move about 15,000 bits in one second. Full-motion full-screen video would require roughly 10,000,000 bits-per-second, depending on compression.

Website design & Internet terms
Bandwidth
The capacity of a connection between computers to transmit information, measured in Bits Per Second (BPS)

Multimedia Glossary
Bandwidth
the width of the band over which frequencies are transmitted. So what's a band? A band is a portion of the electromagnetic spectrum, defined by the lowest and highest frequencies in it. The bandwidth is the difference between the highest and lowest frequencies. The greater the bandwidth, the greater the carrying capacity. The Federal Communications Commission allocates portions of the band. For example, the band for VHF television broadcast is defined from 54 to 88 million cycles per second. And, of course, the band contains many "channels".

SAN Acronyms
Bandwidth
The transmission capacity of the cable, link, or system.

Internetworking Terms
bandwidth
Technically, the difference, in Hertz (Hz), between the highest and lowest frequencies of a transmission channel. However, as typically used, the amount of data that can be sent through a given communications circuit.

Glossary of Electronic Music Terms
bandwidth
The available "opening" through which information can pass. In audio, the bandwidth of a device is the portion of the frequency spectrum that it can handle without significant degradation. In digital communications, the bandwidth is the amount of data that can be transmitted in a given period of time.

Video Essentials Glossary of Terms
Bandwidth
A range or band of frequencies. Bandwidth often implies consistency of other parameters, such as amplitude or phase, in addition to defining the frequency range. In reality, a specification for bandwidth is meaningless without additional qualifying information.

The Internet Dictionary
bandwidth
Measure in kilobytes of the traffic transferred via one of the several Internet protocols .

Glossary of Computer and Internet Terms
Bandwidth
Bandwidth is how much data you can send through a network or modem connection. It is usually measured in bits-per-second. A good example of this is a highway with cars travelling on it. The highway is the connection and the cars are the data. The wider the highway the more cars can travel on it at one time. It's the same thing with computer data. Full-motion, full-screen video would require a bandwidth of roughly 10,000,000 bits-per-second.

Sound Escape Glossary of Terms
Bandwidth
Refers to the range of frequencies a component can reproduce. For audio components like receivers, "full bandwidth" is generally considered to be the entire frequency range of human hearing -- 20-20,000 Hz.

Digital Imaging, Pre-Press & Desktop Publishing
Bandwidth
refers to the amount of data that can be transferred over the Internet in a given amount of time. A 14.4 kbps modem has a very narrow bandwidth and is very slow. A T-100 ISDN link has a high or broad bandwidth and is very fast.

Al's Dish Network - DirecTV Satellite TV Digital DSS Glossary
Bandwidth
Range of frequencies occupied by a signal or allowed by receiving equipment (basically, what a receiver is capable of receiving).


Bandwidth Definition from Government Dictionaries & Glossaries

DOD Dictionary of Military Terms
bandwidth
The difference between the limiting frequencies of a continuous frequency band expressed in hertz (cycles per second). The term bandwidth is also loosely used to refer to the rate at which data can be transmitted over a given communications circuit. In the latter usage, bandwidth is usually expressed in either kilobits per second or megabits per second.
  


Bandwidth Definition from Language, Idioms & Slang Dictionaries & Glossaries

WordNet 2.0
bandwidth

Noun
1. a data transmission rate; the maximum amount of information (bits/second) that can be transmitted along a channel
(hypernym) information measure

English Idioms WM 1.3a
bandwidth
mental capacity, mental energy, brain cells
We need a person with bandwidth, someone who understands complex management relationships.

hEnglish - advanced version
bandwidth

bandwidth
n : a data transmission rate; the maximum amount of information (bits/second) that can be transmitted along a channel


  similar words(1) 




 low-bandwidth 


Bandwidth Definition from Entertainment & Music Dictionaries & Glossaries

film and video
Bandwidth
A range or band of frequencies. Bandwidth often implies consistency of other parameters, such as amplitude or phase, in addition to defining the frequency range. In reality, a specification for bandwidth is meaningless without additional qualifying information.

The DJ Glossary
Bandwidth
The frequency range in which an audio device operates, i.e., amplifiers, equalizers, speakers, etc.


Bandwidth Definition from Science & Technology Dictionaries & Glossaries

Fiber Optics, Optical Networking Terms
Bandwidth
The range of frequencies within which a fiber optic waveguide or terminal device can transmit data or information.

Telecommunication Standard Terms
bandwidth (BW)
1. The difference between the limiting frequencies within which performance of a device, in respect to some characteristic, falls within specified limits. (188 ) 2. The difference between the limiting frequencies of a continuous frequency band. (188 ) href="http://www.its.bldrdoc.gov/fs-1037/dir-001/_0063.htm#188">188 )

bandwidth (of an optical fiber)
1. The lowest modulation frequency at which the RMS peak-to-valley amplitude (optical power ) difference of an intensity -modulated monochromatic signal decreases, at the output of the fiber, to a specified fraction (usually one-half) of the RMS peak-to-valley amplitude (optical power) difference of a nearly-zero (arbitrarily low) modulation frequency, both modulation frequencies having the same RMS peak-to-valley amplitude (optical power) difference at the fiber input . Note 1: In multimode fibers, multimode distortion is usually the most significant parameter limiting fiber bandwidth, although material dispersion may also play a significant role, especially in the first (850-nm) window . Note 2: In multimode fibers, the bandwidth•distance product (colloquially, "fiber bandwidth" ) is customarily specified by vendors for the bandwidth as limited by multimode distortion only. The spectral width of the optical source is assumed to be extremely narrow. In practice, the effective fiber bandwidth will also be limited by dispersion , especially in the first (850-nm) window , where material dispersion is relatively high, because optical sources have a finite spectral width. Laser diodes typically have a spectral width of several nanometers, FWHM. LEDs typically have a spectral width of 35 to 100 nm, FWHM. Note 3: The effective risetime of multimode fibers may be estimated fairly accurately as the square root of the sum of the squares of the material-dispersion-limited risetime and the multimode-distortion-limited risetime. Note 4: In single-mode fibers, the most important parameters affecting fiber bandwidth are material dispersion and waveguide dispersion. Practical fibers are designed so that material dispersion and waveguide dispersion cancel one another at the wavelength of interest. Note 5: Regarding effective fiber bandwidth as it affects overall system performance, it should be recognized that optical detectors such as PIN diodes are square-law devices. Their photocurrent is proportional to the optical power of the detected signal . Because electrical power is a function of the square of the current, when the optical power decreases by one-half (a 3-dB decrease), the electrical power decreases by three-fourths (a 6-dB decrease). 2. Loosely, synonym bandwidth•distance product .

bandwidth•distance product
Of an optical fiber, under specified launching and cabling conditions, at a specified wavelength, a figure of merit equal to the product of the fiber's length and the 3-dB bandwidth of the optical signal. Note 1: The bandwidth•distance product is usually stated in megahertzkilometer (MHz•km) or gigahertz•kilometer (GHz•km). Note 2: The bandwidth•distance product, which is normalized to 1 km, is a useful figure of merit for predicting the effective fiber bandwidth for other lengths, and for concatenated fibers. Synonym bandwidth•length product.

bandwidth•length product
Synonym for bandwidth•distance product .

Technical English by wpv
Bandwidth
The capacity of the transmission medium stated in bits per second or as a frequency. The bandwidth of optical fiber is in the gigabit or billion bits per second range, while ethernet coaxial cable is in the megabit or million bits per second range.

Satellite TV Glossary
Channel Bandwidth
The channel bandwidth is the frequency range in which the energy of a communications signal is concentrated. The bandwidth is centered on the center frequency. For example, the bandwidth of a typical C-band transponder is 36 MHz, more than enough frequency space to transmit a high fidelity video signal via satellite. However, channel bandwidths as low as a half-transponder, 18 MHz, or less are also occasionally used. In addition, while many transponders have 54 and 72 MHz bandwidths, in particular on many Ku-band links, the bandwidth of each video signal may be centered on the upper or lower half of the transponder and occupy typically 27 to 36 MHz or less.

RF Electronics
Bandwidth
The maximum frequency (range), measured in Hertz, between the two limiting frequencies of a transmission channel; the range of frequencies that can be carried by a transmission medium without undue distortion. The difference between the highest and lowest frequencies of a transmission channel, expressed in Hertz (Hz). In digital applications, the bandwidth is expressed as the number of bits per second (bps) that can be transmitted over a channel. The range of frequencies over which signal amplitude remains constant (within some limit) as it is passed through a system.


Bandwidth Definition from Business & Finance Dictionaries & Glossaries

Raynet Business & Marketing Glossary
Bandwidth
a measure of communication speed, how much stuff you can send through a connection. Usually measured in bits-per-second. A full page of English text is about 16,000 bits. A fast modem can move about 15,000 bits in one second. Full-motion full-screen video would require roughly 10,000,000 bits-per-second, depending on compression.

Glossary of management terminology
Bandwidth
1 Capacity
2 Maximum amount
"We do not have the bandwidth to accommodate your request"

Internet PR glossary
bandwidth
The capacity of a computer network or telecommunications line to transmit volumes of data.


Bandwidth Definition from Encyclopedia Dictionaries & Glossaries

Wikipedia English - The Free Encyclopedia
Bandwidth
For the term in linear algebra, see Sparse matrix.

Bandwidth is the difference between the upper and lower cutoff frequencies of, for example, a filter, a communication channel, or a signal spectrum, and is typically measured in hertz. Bandwidth in hertz is a central concept in many fields, including electronicsinformation theoryradio communicationssignal processing, and spectroscopy.


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