DSL is one of the main technologies enabling the delivery of Broadband to homes in different parts of the world. This article by Ramakrishnan Parasuraman, takes you through a brief tour of the evolution of Broadband and then slowly unravels the insider mechanics of DSL. Being a DSL engineer working at Texas Instruments, he would know.

There is a good chance that the words that you are reading now are coming over a broadband connection, like a DSL/cable Internet service. However, if you were in a remote farm in New Zealand, searching the Web for the right fertilizer to raise your crops, you might be using a dial-up connection over a noisy telephone line. But with WiMax, which is capable of transmitting large amounts of data over long distances, you could be surfing the web looking for the appropriate fertilizer, over a 75Mbps connection without a wire!