TopRq.com

rss_follow  tubmlr_follow twitter_follow


Rate this file (Rating : 5 / 5 with 1 votes)
mobile cell phone evolution

Mobile Cell Phone Evolution

A mobile phone can make and receive telephone calls to and from the public telephone network which includes other mobiles and fixed-line phones across the world. It does this by connecting to a cellular network provided by a mobile network operator.
In addition to telephony, modern mobile phones also support a wide variety of other services such as text messaging, MMS, email, Internet access, short-range wireless communications (infrared, Bluetooth), business applications, gaming and photography. Mobile phones that offer these more general computing capabilities are referred to as smartphones.
The first hand-held mobile phone was demonstrated by Dr Martin Cooper of Motorola in 1973, using a handset weighing 2 kg. In 1983, the DynaTAC 8000x was the first to be commercially available. In the twenty years from 1990 to 2010, worldwide mobile phone subscriptions grew from 12.4 million to over 4.6 billion, penetrating the developing economies and reaching the bottom of the economic pyramid.

File information
Filename:474182.jpg
Album name:Architecture & Design
Rating (1 votes):55555
Keywords:#mobile #cell #phone #evolution
Filesize:22 KiB
Date added:Apr 25, 2012
Dimensions:466 x 478 pixels
Displayed:142 times
URL:displayimage.php?pid=474182
Favorites:Add to Favorites