HONG KONG - JANUARY 21: Apple store on January 21, 2013 in Hong Kong. In 2012, Apple sold 172 million iPods, iPhones and iPads, These post-PC devices making up a total of 76-percent of Apple's revenue
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HONG KONG - JANUARY 21: Apple store on January 21, 2013 in Hong Kong. In 2012, Apple sold 172 million iPods, iPhones and iPads, These post-PC devices making up a total of 76-percent of Apple's revenue