DSL: Digital subscriber line (DSL) delivers high-speed Internet access over an existing phone line. High speed data is carried over the phone line, but because it uses higher frequencies than voices, it does not interfere with telephone conversations.
Cable Internet: Cable Internet is a form of broadband Internet access that uses the cable television infrastructure. Like digital subscriber lines and fiber optics networks, cable Internet bridges the last mile from the Internet provider to the subscriber. It is layered on top of the existing cable television network infrastructure just as DSL uses the existing telephone network.
Fiber Optic: Fiber-optic communication is a method of transmitting information from one place to another by sending pulses of light through an optical fiber. The light forms an electromagnetic carrier wave that is modulated to carry information.
Satellite Internet: Satellite Internet is used in locations where wired or land-based Internet access is not available and in locations that move frequently. Internet access via satellite is available worldwide, including vessels at sea and mobile land vehicles.