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The world’s first mobile phone call was made on April 3, 1973
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1980: There were about 3.2 million pager users worldwide
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The first PDAs were developed in the early 1990s as digital improvements upon the traditional pen-and-paper organizers
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Smartphones changed the landscape of mobile technology they are more advanced than basic phone.
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Since 2010, smartphones have had a new rival: tablet computers. they are like bigger mobile computers.