Bandwidth is measured in baud or bits per second. A page whose sole purpose in life is to capitalize on a trendy topic. The name comes from the spate of pages bashing poor Barney the Dinosaur that were all the rage a while back. Recent Barney pages have been dedicated to O.J. and the Pentium chip fiasco. This is a measure of how much bandwidth a transmission medium has.
Most people prefer to use bits per second to describe bandwidth because it's easier to understand.
Computers do all their dirty work by manipulating a series of high and low electrical currents. A high current is represented by the digit 1 and a low current by the digit 0. Any form of digital correspondence. Another, more common, measure of bandwidth. So, for example, a 14.4 Kbps modem can handle 14,400 bits per second.