Englishfor English speakers
broadband
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adjective
responding to or operating at a wide band of frequencies
a broadband antenna
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adjective
of or relating to or being a communications network in which the bandwidth can be divided and shared by multiple simultaneous signals (as for voice or data or video)
modem
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noun
(from a combination of MOdulate and DEModulate) electronic equipment consisting of a device used to connect computers by a telephone line