In the primary context of the USA, the authors discuss technological possibilities compatible with present equipment, which offer some limited improvements in audio broadcasting. They then analyse more radical possibilities which may greatly increase the number of audio delivery channels....

The article is an extensive review of the literature covering the history of telecommunications, primarily the telephone and telegraph. Much of the history itself is discussed in the process, including the politics of inventions, monopolies and anti-trust pressures, and industry interaction with...

Restrictions on transmission of data across borders are sometimes proposed as means to control abuses such as invasions of privacy. The authors explore the thesis that controls on cross-border data flows are rarely effective in helping to achieve such ends. They argue that the technology of...