What is band width? how bandwith will get generate?

Question

What is Internet band width? how Internet bandwith will get generate?
and who is the bandwith parent onwer, then how they will distribute band width...where i the main bandwidth city,,?

Answer 1

http://www.itu.int

http://en.wikipedia.org/wiki/Bandwidth

http://searchnetworking.techtarget.com/sDefinition/0,,sid7_gci211634,00.html

Answer 2

Bandwidth is the speed capacity for a network connection. It is often measured in Kilobits (Kb) or Megabits (Mb). Most cablemodem and xDSL seems operates in the 2Mb to 7Mb speed range these days.



Each network connection on the Internet has a specified bandwidth speed that was purchased by the customer. As such, you purchase a certain amount of bandwidth from your ISP. Your ISP purchases a certain amount of bandwidth from their network provider(s). The closer to the Internet backbone you get, the higher the bandwidth rating of the network connections.



Bandwidth is distributed primarily based on what you are willing to pay to meet your needs. You may want a lot of bandwidth, but may only be able to afford medium bandwidth. The same goes for every customer in the networking chain.

Answer 3

Bandwidth, in so many words, is a measurement of the maximum amount of traffic a network connection can carry. Bandwidth is determined by many factors, ranging from the physical limitations of the medium being used for connectivity to the protocols that transport your information from one location to another. Bandwidth may be specifically controlled by a terminal to restrict the rate of traffic to specific end users or networks.

Answer 4

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 electronics, information theory, radio communications, signal processing, and spectroscopy.



In computer networking literature, digital bandwidth often refers to data rate measured in bit/s, for example channel capacity (digital bandwidth capacity) or throughput (digital bandwidth consumption). The reason for this usage is that the channel capacity in bit/s is proportional to the analogue bandwidth in Hertz according to Hartley's law.

Overview

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). A less strict and more practically useful definition will refer to 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 more rarely 10 dB, or it could mean below a certain absolute value. As with any definition of the width of a function, many definitions are suitable for different purposes.



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).

In website hosting, the term "bandwidth" is often used metaphorically, to describe the amount of data that can be transferred to or from the website or server, measured in bytes transferred over a prescribed period of time. This can be more accurately described as "Monthly Data Transfer."



Web hosting companies often quote a monthly bandwidth limit for a website, for example 500 gigabytes per month. If visitors to the website download a total greater than 500 gigabytes in one month, the bandwidth limit will have been exceeded.

Answer 5

bandwith is the amount of traffic that a server sends out to people. Every time you go to someone's website, you are using some of their bandwidth to get all their pictures, and the way their website looks to your computer. Website hosting companies charge you for the amount of bandwidth that you make their servers send out. Its usually measured in GB.

Answer 6

Ya.. Bandwidth means speed of connection you are using. And it is provided by different service providers. You can use a dialup connection which is 58kbps or more, but for faster access you need to have a broadband connection. Some of the service providers(for broadband) in India are BSNL, Airtel, Hutch etc.

Answer 7

A measure of the capacity of a communications channel. The higher a channel's bandwidth, the more information it can carry.

Answer 8

speed of your connection or speed of a connection.

i.e. my connection is 10mbit, thats how much bandwidth i've got.

there is no bandwidth city, the internet is distributed over hundreds of main "hubs" that are able to transmit hundreds of millions of bits per second. the internet is as simple as a home network expanded on a huge scale, nothing more than connected computers all over the world.