The IT Stuff

DSL is a modem technology that turns a customer’s existing phone line into a three-channel data delivery system. One channel transmits voice services, so normal phone or fax usage continues whether or not you are accessing the Internet. A second channel transmits data downstream at high speeds, and a third bi-directional channel transmits data upstream. [...]

Satellite Internet connection
A satellite Internet connection is an arrangement in which the upstream (outgoing) and the downstream (incoming) data are sent from, and arrive at, a computer through a satellite. Each subscriber’s hardware includes a satellite dish antenna and a transceiver (transmitter/receiver) that operates in the microwave portion of the radio spect.
Fibre optic
In some ares  [...]

Integrated Services Digital Network (ISDN): ISDN is a digital transmission system, which is used to transmit voice and data through copper telephone wires. In other words, it’s a circuit-switched data transmission system that is used for voice and data transmission over the wire.
Digital Subscriber Line (DSL): DSL is also a digital transmission system and utilizes [...]

A Digital Subscriber Line (DSL) is a type of broadband connection that takes advantage of the existing telephone cables to enable high-speed data transmissions to and from a customer’s premises.
Other broadband platforms include ISDN, Leased Lines, terrestrial broadcast, cable and cable modem, satellite, fibre optic, fixed wireless access (FWA), mobile wireless and powerlines.
Broadband telecommunication enables [...]