2006-09-01 03:37:55 · 6 answers · asked by Anonymous in Computers & Internet ➔ Internet
Bandwidth is a measure of frequency range and is typically measured in hertz. Bandwidth is a central concept in many fields, including information theory, radio communications, signal processing, and spectroscopy. Bandwidth also refers to data rates when communicating over certain media or devices.
2006-09-01 03:50:56 · answer #1 · answered by Utkarsh 6 · 1⤊ 0⤋
Bandwidth is a key concept in many applications. In radio communications, for example, bandwidth is the range of frequencies occupied by a modulated carrier wave, whereas in optics it is the width of an individual spectral line or the entire spectral range
There is no single universal precise definition of bandwidth, as it is vaguely understood to be a measure of how wide a function is in the frequency domain.
For different applications there are different precise definitions. For example, one definition of bandwidth could be the range of frequencies beyond which the frequency function is zero. This would correspond to the mathematical notion of the support of a function (i.e., the total "length" of values for which the function is nonzero). Another definition might not be so strict and ignore the frequencies where the frequency function is small. Small could mean less than 3 dB below (i.e., less than half of) the maximum value, or it could mean below a certain absolute value. As with any definition of the width of a function, there are many definitions available, which are suitable for different applications.
According to the Shannon–Hartley theorem, the data rate of reliable communication is directly proportional to the frequency range of the signal used for the communication. In this context, the word bandwidth can refer to either the data rate or the frequency range of the communication system (or both).
2006-09-01 10:44:10 · answer #2 · answered by samurai_army0 1 · 0⤊ 0⤋
Internet:
Bandwidth is the amount of data that can be transferred over the network in a fixed amount of time. On the Net, it is usually expressed in bits per second (bps) or in higher units like Mbps (millions of bits per second). 28.8 modem can deliver 28,800 bps, a T1 line is about 1.5 Mbps.
Electronics
The range of frequencies, expressed in hertz (Hz), that can pass over a given transmission channel. The bandwidth determines the rate at which information can be transmitted through the circuit.
2006-09-01 10:48:54 · answer #3 · answered by guido_961 4 · 0⤊ 0⤋
well u have read all technical answers for your question. In general terms, band width can be compared to highways or freeways, where a single line is dedicated to the vehical with perticular speed. so band width can b campared to the sapce provided for a individual vehical to travel in a high way line...
2006-09-01 15:07:46 · answer #4 · answered by krishna h 1 · 0⤊ 0⤋
Bandwidth is how fast your connection to the internet is, e.g 2mb, 4mb, 8mb, etc.
Or as its amusingly known in the press, how big your tubes are :)
2006-09-01 10:47:04 · answer #5 · answered by Elmer Fudd 6 · 0⤊ 0⤋
U first clarify about your question
2006-09-01 10:45:33 · answer #6 · answered by niru 2 · 0⤊ 0⤋