EntityQ1929149· pop 13· linked from 196 articlescrossbar switchSign in to saveelectromechanical line selector for automatic telephone exchangesConnectionswireless communicationEntityInformation AgeEntitytelephone exchangeEntityLondonCityInternetEntityThomas EdisonEntitytelephoneEntityNikola TeslaEntitymuseumEntityelectronicsEntitymass mediaEntityTim Berners-LeeEntityAlexander Graham BellEntitysmartphoneEntitytelecommunicationsEntityGuglielmo MarconiEntitycomputer networkEntitysemiconductorEntitysocial mediaEntitydigital object identifierEntityCategoriesElectronic circuitsSwitchesTelephone exchange equipment