ADSL (Asymmetric Digital Subscriber Line) is an Internet access technology that makes use of the existing telephone network to provide broadband Internet service to homes and businesses.  At the present time, ADSL is the most popular high-speed Internet access technology for home and businesses in many parts of the world.

This tutorial explains what ADSL broadband is and how it works.  It describes the strengths and limitations of this high-speed Internet access technology.  The cost of ADSL service and service availability are also addressed.