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mobile cell phone evolution

Mobile Cell Phone Evolution

History
Radiophones have a long and varied history going back to Reginald Fessenden's invention and shore-to-ship demonstration of radio telephony, through the Second World War with military use of radio telephony links and civil services in the 1950s.
The first mobile telephone call made from a car occurred in St. Louis, Missouri, USA on June 17, 1946, using the Bell System's Mobile Telephone Service, but the system was impractical from what is considered a portable handset today. The equipment weighed 80 pounds (36 kg), and the AT&T service, basically a massive party line, cost US$30 per month (equal to $337.33 today) plus 30–40 cents per local call, equal to $3.37 to $4.5 today.

File information
Filename:474143.jpg
Album name:Architecture & Design
Rating (1 votes):55555
Keywords:#mobile #cell #phone #evolution
Filesize:42 KiB
Date added:Apr 25, 2012
Dimensions:406 x 550 pixels
Displayed:71 times
URL:displayimage.php?pid=474143
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