Communications system
Communication is the act of conveying intended meanings from one entity or group to another through the use of mutually understood signs and semiotic rules.Fiber-optic communication systems transmit information from one place to another by sending light through an optical fiber.An antenna is basically a small length of a qwert conductor that is used to radiate or receive electromagnetic waves.A Voice Communication Control System (VCCS) is essentially an ACD with characteristics that make it more adapted to use in critical situations (no waiting for dial tone, or lengthy recorded announcements, radio and telephone lines equally easily connected to, individual lines immediately accessible etc..) Sources can be classified as electric or non-electric; they are the origins of a message or input signal.These types of sensors are called input transducers in modern analog and digital communication systems.Guided media refers to any medium that can be directed from transmitter to receiver by means of connecting cables.Air is the only thing between the transmitter and receiver for RF communication while in other cases, like sonar, the medium is usually water because sound waves travel efficiently through certain liquid media.Communication channels include almost everything from the vacuum of space to solid pieces of metal; however, some mediums are preferred more than others.
electronic signalsterminal equipmentinterconnectioninteroperationsystemTelecommunicationscommunicationbroadcastingmass mediajournalismsemioticoptical communicationsignalcommunication channelFiber-optic communicationoptical fibercarrier signalmodulatedradio communication systemsubsystemsfree spacePower line communicationAC powerduplex communication systemantennaelectromagnetic wavesDefense Communications SystemTelephoneTablet computerTelevisionTelegraphTV cableComputertactical communications systemtactical forcescommand and controlEmergency communication systemAutomatic call distributorair traffic controldial toneAudio filesGraphic Image FilesEmail MessagesHuman voiceTelevision PictureElectromagnetic radiationMicrophonesCamerasKeyboardsAccelerometersNoise filterAnalog-to-digital converterModulatorSignal amplifierDigital-to-analog converterTransmission systemJohn Stone StoneNikola Teslapublic domain materialGeneral Services AdministrationMIL-STD-188HistoryCable protection systemCable TVData compressionDigital mediaInternet videoonline video platformsocial mediastreamingEdholm's lawInformation AgeInformation revolutionInternetMobile phoneSmartphoneOptical telecommunicationOptical telegraphyPhotophonePrepaid mobile phoneRadiotelephoneSatellite communicationsSemaphorePhryctoriaSemiconductordeviceMOSFETtransistorSmoke signalsTelecommunications historyTelautographTelegraphyTeleprinterThe Telephone CasesdigitalVideotelephonyWhistled languageWireless revolutionNasir AhmedEdwin Howard ArmstrongMohamed M. AtallaJohn Logie BairdPaul BaranJohn BardeenAlexander Graham BellEmile BerlinerTim Berners-LeeFrancis BlakeJagadish Chandra BoseCharles BourseulWalter Houser BrattainVint CerfClaude ChappeYogen DalalDaniel Davis Jr.Donald DaviesAmos DolbearThomas EdisonLee de ForestPhilo FarnsworthReginald FessendenElisha GrayOliver HeavisideRobert HookeErna Schneider HooverHarold Hopkins