The new Microsoft Surface tablet on display after a press conference in New York in October. The Microsoft tablet goes up against products from Apple, Amazon and Google. Timothy A. Clary/AFP/Getty Images hide caption

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The new iPad Mini is displayed after its unveiling at an Apple event in San Jose, Calif., on Tuesday. Kevork Djansezian/Getty Images hide caption

itoggle caption Kevork Djansezian/Getty Images