Apple stunned Wall Street Tuesday afternoon, with Q1 earnings that set new quarterly unit and revenue records in key product segments, and its highest-ever earnings per share. Apple CEO Tim Cook told analysts that the company set all-time revenue and unit records for its iPhone and Apple Watch brands, all-time revenue records for its Mac and Services businesses, and all-time revenue records for four of its five geographic sectors. The company sold a record 78.3 million iPhones during the quarter, up 5 percent from the year-ago period.