Telephone & Cable Networks For Data Transmission

Telephone & Cable Networks For Data Transmission

Telephone networks were originally created to provide voice communications. The need to communicate digital data resulted of the dial up modem.

Width advent of the internet came the need for high-Speed downloading and uploading: the modem was just too slow. The telephone companies added a new technology, the digitial subscriber line (DSL).

Althought dial-up modems still exists in many places all over the world (3rd world) DSL provides faster access to the internet through the telephone network.