What is the difference between the bit rate and the band width

[hqattous]

I have a questions that some documentations on the enternet misled me in its answer. Is there a difference between the band width and the bit rate? Some documentations say that the band width has two meaning one for the frequences and the other for the data transfer rate. A dr. in our university told me that is not correct and the only meaning for the data transfer rate is the bit rate. Is that right?? Which answer is more correct?

Thank you very much

[chuck.price]

Try these two links. The first defines bit rate the second bandwidth.

http://searchnetworking.techtarget.com/sDefinition/0,,sid7_gci214389,00.html

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