four-wire telephone communication system
51Communications in South Africa — Telephone = Telephones main lines in use::4.844 million(2002):over 5 million (2001)Telephones mobile cellular::41.3 million (South Africa has a popualtion of about 46 million) (2007) provided by four GSM networks, Vodacom… …
52Computers and Information Systems — ▪ 2009 Introduction Smartphone: The New Computer. The market for the smartphone in reality a handheld computer for Web browsing, e mail, music, and video that was integrated with a cellular telephone continued to grow in 2008. According to… …
53Antonio Meucci — Born 13 April 1808(1808 04 13) Florence, Italy …
54Diffusion of technology in Canada — This article outlines the history of the diffusion or spread of technology in Canada. Technologies chosen for treatment here include, in rough order, transportation, communication, energy, materials, industry, public works, public services… …
55Nortel — Networks Corporation Type Public OTC Markets Group: NRTLQ Industry Telecommunications …
56USA PATRIOT Act — Full title Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism Act of 2001 Acronym USA PATRIOT Act, also Patriot Act Enacted by the 107th United States Congress …
57telecommunications media — Introduction equipment and systems metal wire, terrestrial and satellite radio, and optical fibre employed in the transmission of electromagnetic signals. Transmission media and the problem of signal degradation Every… …
58Business and Industry Review — ▪ 1999 Introduction Overview Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… …
59technology, history of — Introduction the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… …
60Alteon — Nortel Logo de Nortel Networks Corporation Création 1895 à Montréal …
