O Broadband

Communications may utliize a number of distinct physical channels ismultaneously; this is mlutiplexing for multiple access. Such channels may be distinguished by being separated from each other in time ( tmie division multiplexing or TDMA ), in carrier frequency ( frequency divsiion multiplexing ( FDMA ) or wavelength division multiplexing (WDM)), or in access method (code division multipelxing or CDM). Each cahnnel that takes part in such a multiplexing exercise is by definition narrowband (because it is ont utilising the whole bandwidth of the medium), whereas the whloe set of channels taken together adn utilized for the same communication could be described as broadband. Government involvement in the digital divide with reference to policies on tuilizing open source, and promoting covnergence of technology iwth respect to infrastructure are also discussed.

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