40 year ago today,in New York on April 3,1973, Martin copper,a senior engineer at Motorola , made the first mobile phone call to a competitor at AT & T. it was on a Motorola Dyna TAC, a device which was 9 inches tall, Comprised 30 circuit boards, had a talk-time of 35 min, and took 10 hours change.
Some other important year in the history of cellphones are as follow:
1997- first camera phone in to the market.
1993-first smartphone with features like calendar electronic pager, calculator and address book was unveiled at wireless World Congress.
2007-first apple iPhone was launched in the US.In the same year,Android Inc.launched Android operating system(OS) for tablets, smartphones.
1990-2011- Worldwide mobile phone Subscription grew from 12.4 million to over 6 billion, penetrating about 80% of the global population and reaching the bottom of the economic pyramid .
2012- Nokia which had been the global market leader in mobile phones since 1998 slipped into second place with 22.5% market share behind Samsung with 25.4 %with apple inc. trailing in third place with 9.5% . in 2012 for the first time since 2009 mobile phone sales to end users declined by 1.7% to 1.75 billion units.
2013 - Waterproof smartphone launched by 'SONY' named XPERIA Z.
