"The Alexanderson radio alternator was a high-power, radio-frequency source which provided reliable transoceanic radiotelegraph communication during and after World War I. Ernst F.W. Alexanderson (1878-1975), a General Electric engineer, designed radio alternators with a frequency range to 100 kHz and a power capability from 2 kW to 200 kW.
Society: IEEEMain Category: ElectricalSub Category: CommunicationsEra: 1900-1909DateCreated: 1904General Electic CompanySchenectadyState: NYZip: 12306Country: USAWebsite: http://www.ieeeghn.org/wiki/index.php/Milestones:Alexanderson_Radio_Alternator,_1904Creator: Alexanderson, Ernst
YearAdded:Image Credit: Public Domain; Produced prior to 1/1/1923Era_date_from: 1904
Society: IEEEMain Category: ElectricalSub Category: CommunicationsEra: 1960-1969DateCreated: 1969Computer History MuseumMountain ViewState: CAZip: 94043Country: USAWebsite: http://www.ieeeghn.org/wiki/index.php/Milestones:Birthplace_of_the_Internet,_1969Creator: Kleinrock, Leonard
"At 10:30 p.m., 29 October 1969, the first ARPANET message was sent from this UCLA site to the Stanford Research Institute. Based on packet switching and dynamic resource allocation, the sharing of information digitally from this first node of ARPANET launched the Internet revolution." (The plaque can be seen at the UCLA Henry Samueli School of Engineering and Applied Sciences, 405 Hilgard Ave., Los Angeles, California, U.S.A.) The deployment of the ARPANET set in motion a train of developments that led to the Internet as we know it today.
YearAdded:Image Credit: Courtesy Flickr/FastLizard4 (CC BY-SA 2.0)Era_date_from: 1969
Society: IEEEMain Category: ElectricalSub Category: CommunicationsEra: 1960-1969DateCreated: 1962Shirley's Bay Research CentreOttawaState: OntarioZip: K2KCountry: CanadaWebsite: http://www.ieeeghn.org/wiki/index.php/Milestones:Alouette-ISIS_Satellite_Program,_1962Creator: Defense Telecommunications Establishment Electronics Lab
"Driven by the need to understand the characteristics of radio communication in Canada's North, Canadian researchers focused on the exploration of the earth's upper atmosphere, the ionosphere. Canada's satellite program commenced with the launch of Alouette-I on September 29, 1962. Alouette-II followed in 1965, ISIS-I in 1969, ISIS-II in 1971. The Alouette/ISIS tracking antenna serves as a reminder of Canada's contribution to this international effort in space science.
YearAdded:Image Credit: Public Domain; NASAEra_date_from: 1962