ingDrumsEdholm's lawElectrical telegraphFaxHeliographsHydraulic telegraphInformation AgeInformation revolutionInternetMass mediaMobile phoneSmartphoneOptical telecommunicationOptical telegraphyPagerPhotophonePrepaid mobile phoneRadioRadiotelephoneSatellite communicationsSemaphoreSemiconductordeviceMOSFETtransistorSmoke signalsTelecommunications historyTelautographTelegraphyTeleprinter (teletype)TelephoneThe Telephone CasesTelevisiondigitalstreamingUndersea telegraph lineVideotelephonyWhistled languageWireless revolutionPioneersNasir AhmedEdwin Howard ArmstrongMohamed M. AtallaJohn Logie BairdPaul BaranJohn BardeenAlexander Graham BellEmile BerlinerTim Berners-LeeFrancis Blake (telephone)Jagadish Chandra BoseCharles BourseulWalter Houser BrattainVint CerfClaude ChappeYogen DalalDaniel Davis Jr.Donald DaviesAmos DolbearThomas EdisonLee de ForestPhilo FarnsworthReginald FessendenElisha GrayOliver HeavisideRobert HookeErna 