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Showing posts with label 3g Mobile Networks. Show all posts
Showing posts with label 3g Mobile Networks. Show all posts

June 8, 2011

The Making of Mobile Phone Revolution : Infographics

the history of the cell phone
Created by Milo (This infographic provides an overview of the history of the cell phone, starting out with a graph that shows the rise in U.S. mobile phone subscribers from 1985 to 2009)
  • The first official mobile phone was used in Sweden by the Swedish police in 1946. The technology was connected to the telephone network and was distinctive of two way radio technology.
  • The technology of modern cell phones started with the creation of hexagonal cells for mobile phones by D.H. Ring from Bell Labs in 1947,
  • On April 3, 1973, Martin Cooper, a Motorola researcher and executive, made the first analogue mobile phone call using a heavy prototype model. He called Dr. Joel S. Engel of Bell Labs
  • The first commercially automated cellular network (the 1G generation) was launched in Japan by NTT in 1979 and covered the full metropolitan area of Tokyo's over 20 million inhabitants with a cellular network of 23 base stations. Within five years, the NTT network had been expanded to cover the whole population of Japan and became the first nation-wide 1G network.
  • The next 1G network to launch was the Nordic Mobile Telephone (NMT) system in Denmark, Finland, Norway and Sweden in 1981.NMT was the first mobile phone network to feature international roaming
  • Vodafone made the UK's first mobile call at a few minutes past midnight on 1 January 1985..
  • In 1991 the first GSM network (Radiolinja) launched in Finland. In general the frequencies used by 2G systems in Europe were higher than those in America, though with some overlap. For example, the 900 MHz frequency range was used for both 1G and 2G system
  • The first machine-generated SMS message was sent in the UK on 3 December 1992 followed in 1993 by the first person-to-person SMS sent in Finland
  • 2G also introduced the ability to access media content on mobile phones. In 1998 the first downloadable content sold to mobile phones was the ring tone, launched by Finland's Radiolinja (now Elisa)
  • Mobile payments were trialled in 1998 in Finland and Sweden where a mobile phone was used to pay for a Coca Cola vending machine and car parking. Commercial launches followed in 1999 in Norway. The first commercial payment system to mimic banks and credit cards was launched in the Philippines in 1999 simultaneously by mobile operators Globe and Smart.
  • The first full internet service on mobile phones was introduced by NTT DoCoMo in Japan in 1999.