Generations
Roughly every ten years new mobile phone technology and infrastructure involving a change in the fundamental nature of the service, non-backwards-compatible transmission technology, higher peak data rates, new frequency bands, wider channel frequency bandwidth in Hertz becomes available. These transitions are referred to as generations:
Second generation (2G) from 1991:
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Third generation (3G) from 2001:
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Fourth generation (4G) from 2006:
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The download (to the user) and upload (to the Internet) data rates given above are peak or maximum rates and end users will typically experience lower data rates.
WiMAX was originally developed to deliver fixed wireless service with wireless mobility added in 2005. CDMA2000 EV-DO and MBWA (Mobile Broadband Wireless Access) are no longer being actively developed.
In 2011, 90% of the world's population lived in areas with 2G coverage, while 45% lived in areas with 2G and 3G coverage.
Read more about this topic: Mobile Broadband
Famous quotes containing the word generations:
“In a few generations more, there will probably be no room at all allowed for animals on the earth: no need of them, no toleration of them. An immense agony will have then ceased, but with it there will also have passed away the last smile of the worlds youth.”
—Ouida [Marie Louise De La Ramée] (18391908)
“There is singularly nothing that makes a difference a difference in beginning and in the middle and in ending except that each generation has something different at which they are all looking. By this I mean so simply that anybody knows it that composition is the difference which makes each and all of them then different from other generations and this is what makes everything different otherwise they are all alike and everybody knows it because everybody says it.”
—Gertrude Stein (18741946)
“The community and family networks which helped sustain earlier generations have become scarcer for growing numbers of young parents. Those who lack links to these traditional sources of support are hard-pressed to find other resources, given the emphasis in our society on providing treatment services, rather than preventive services and support for health maintenance and well-being.”
—Bernice Weissbourd (20th century)